Sensitization of Titania Semiconductor: A Promising Strategy to Utilize Visible Light

Photocatalysis and Water Purification: From Fundamentals to Recent Applications

Volumn , Issue , 2013, Pages 199-240

  Wang, Zhaohui ^a,b   Chen, Chuncheng ^a   Ma, Wanhong ^a   Zhao, Jincai ^a  

^a PEKING UNIVERSITY   (China)

^b DONGHUA UNIVERSITY   (China)

Author keywords

Charge transfer complex; Chromophore; Excited state; Metal doping; Photosensitizer; Plasmonic metal

Indexed keywords

EID: 84885487427     PISSN: None     EISSN: None     Source Type: Book    
DOI: 10.1002/9783527645404.ch8     Document Type: Chapter

References (155)

1. Fujishima, A. and Honda, D. (1972) Electrochemical photolysis of water at a semiconductor electrode. Nature, 238, 37-38.
2. Chen, C.C., Ma, W.H., and Zhao, J.C. (2010) Semiconductor-mediated photodegradation of pollutants under visible-light irradiation. Chem. Soc. Rev., 39, 4206-4219.
3. Zhou, J. and Zhao, X.S. (2010) in Environmentally Benign Photocatalysts: Applications of Titanium Oxide-Based Materials (eds M. Anpo and P.V. Kamat), Springer, New York, Dordrecht and Heidelberg, London, pp. 235-252.
4. Henderson, M.A. (2011) A surface science perspective on TiO2 photocatalysis. Surf. Sci. Rep., 66, 185-297.
5. Zhao, J.C., Chen, C.C., and Ma, W.H. (2005) Photocatalytic degradation of organic pollutants under visible light irradiation. Top. Catal., 35, 269-278.
6. Kim, G. and Choi, W. (2010) Chargetransfer surface complex of EDTA-TiO2 and its effect on photocatalysis under visible light. Appl. Catal., B, 100, 77-83.
7. Yu, J.C., Wu, L., Lin, J., Li, P., and Li, Q. (2003) Microemulsion-mediated solvothermal synthesis of nanosized CdS-sensitized TiO2 crystalline photocatalyst. Chem. Commun., 1552-1553.
8. Pichat, P. (1991) in Photochemical Conversion and Storage of Solar Energy (eds E. Pelizzetti and M. Schiavello), Kluwer Academics Publication, pp. 277-293.
9. Gopidas, K.R., Bohorquez, M., and Kamat, P.V. (1990) Photoelectrochemistry in semiconductor particulate systems. 16. Photophysical and photochemical aspects of coupled semiconductors. Charge-transfer processes in colloidal CdS-TiO2 and CdS-AgI systems. J. Phys. Chem., 94, 6435-6440.
10. Asahi, R., Morikawa, T., Ohwaki, T., Aoki, K., and Taga, Y. (2001) Visiblelight photocatalysis in nitrogen-doped titanium oxides. Science, 293, 269-271.
11. Zhao, W., Ma, W.H., Chen, C.C., Zhao, J.C., and Shuai, Z.G. (2004) Efficient degradation of toxic organic pollutants with Ni2O3/TiO2-xBx under visible irradiation. J. Am. Chem. Soc., 126, 4782-4783.
12. Linic, S., Christopher, P., and Ingram, D.B. (2011) Plasmonic-metal nanostructures for efficient conversion of solar to chemical energy. Nat. Mater., 10, 911-921.
13. Spikes, J.D. (1989) in The Science of Photobiology (ed C.S. Kendric), Plenum Press, New York and London, pp. 79-110.
14. Oleinick, N.L. (2010) Basic Photosensitization, http://www.photo biology.info/Oleinick.html (accessed 14 January 2012).
15. Watanabe, T., Takizawa, T., and Honda, K. (1977) Photocatalysis through excitation of adsorbates. 1. Highly efficient N-deethylation of rhodamine B adsorbed to cadmium sulfide. J. Phys. Chem., 81, 1845-1851.
16. Wu, T.X., Liu, G.M., Zhao, J.C., Hidaka, H., and Serpone, N. (1999) Evidence for H2O2 generation during the TiO2-assisted photodegradation of dyes in aqueous dispersions under visible light illumination. J. Phys. Chem. B, 103, 4862-4867.
17. Yang, J., Chen, C.C., Ji, H.W., Ma, W.H., and Zhao, J.C. (2005) Mechanism of TiO2-assisted photocatalytic degradation of dyes under visible irradiation: photoelectrocatalytic study by TiO2-film electrodes. J. Phys. Chem. B, 109, 21900-21907.
18. Hagfeldt, A., Boschloo, G., Sun, L., Kloo, L., and Pettersson, H. (2010) Dye-sensitized solar cells. Chem. Rev., 110, 6595-6663.
19. Bae, E. and Choi, W. (2006) Effect of the anchoring group (carboxylate vs phosphonate) in Ru-complex-sensitized TiO2 on hydrogen production under visible light. J. Phys. Chem. B, 110, 14792-14799.
20. Wang, Z., Mao, W., Chen, H., Zhang, F., Fan, X., and Qian, G. (2006) Copper( II) phthalocyanine tetrasulfonate sensitized nanocrystalline titania photocatalyst: synthesis in situ and photocatalysis under visible light. Catal. Commun., 7518-7522.
21. Zhang, M., Shao, C., Guo, Z., Zhang, Z., Mu, J., Cao, T., and Liu, Y. (2011) Hierarchical nanostructures of copper(II) phthalocyanine on electrospun TiO2 nanofibers: controllable solvothermal-fabrication and enhanced visible photocatalytic properties. ACS Appl. Mater. Interfaces, 3, 369-377.
22. Li, L. and Xin, B.F. (2010) Photogenerated carrier transfer mechanism and photocatalysis properties of TiO2 sensitized by Zn(II) phthalocyanine. J. Cent. South Univ. Technol., 17, 218-222.
23. Sun, Q. and Xu, Y. (2009) Sensitization of TiO2 with aluminum phthalocyanine: factors influencing the efficiency for chlorophenol degradation in water under visible light. J. Phys. Chem. C, 113, 12387-12394.
24. Wang, C., Li, J., Mele, G., Duan, M., Lu, X., Palmisano, L., Vasapollo, G., and Zhang, F. (2010) The photocatalytic activity of novel, substituted porphyrin/TiO2-based composites. Dyes Pigm., 84, 183-189.
25. Zhao, D., Chen, C., Wang, Y., Ma, W., Zhao, J., Rajh, T., and Zang, L. (2008) Enhanced photocatalytic degradation of Dye pollutants under visible irradiation on Al(III)-modified TiO2: structure, interaction, and interfacial electron transfer. Environ. Sci. Technol., 42, 308-314.
26. Wang, Q., Chen, C., Zhao, D., Ma, W., and Zhao, J. (2008) Change of adsorption modes of dyes on fluorinated TiO2 and its effect on photocatalytic degradation of dyes under visible irradiation. Langmuir, 24, 7338-7345.
27. Pan, L., Zou, J., Zhang, X., and Wang, L. (2011) Water-mediated promotion of dye sensitization of TiO2 under visible light. J. Am. Chem. Soc., 133, 10000-10002.
28. Batzill, M. (2011) Fundamental aspects of surface engineering of transition metal oxide photocatalysts. Energy Environ. Sci., 4, 3275-3286.
29. Prezhdo, O.V., Duncan, W.R., and Prezhdo, V.V. (2008) Dynamics of the photoexcited electron at the chromophore-semiconductor interface. Acc. Chem. Res., 41, 339-348.
30. Zhang, F.L., Zhao, J.C., Shen, T., Hidaka, H., Pelizzetti, E., and Serpone, N. (1998) TiO2-Assisted photodegradation of dye pollutants - II. Adsorption and degradation kinetics of eosin in TiO2 dispersions under visible light irradiation. Appl. Catal., B, 15, 147-156.
31. Liu, G.M., Wu, T.X., Zhao, J.C., Hidaka, H., and Serpone, N. (1999) Photoassisted degradation of dye pollutants.Irreversible degradation of alizarin red under visible light radiation in air-equilibrated aqueous TiO2 dispersions. Environ. Sci. Technol., 33, 2081-2087.
32. Zhao, J.C., Wu, T.X., Wu, K.Q., Oikawa, K., Hidaka, H., and Serpone, N. (1998) Photoassisted degradation of dye pollutants. 3. Degradation of the cationic dye rhodamine B in aqueous anionic surfactant/TiO2 dispersions under visible light irradiation: evidence for the need of substrate adsorption on TiO2 particles. Environ. Sci. Technol., 32, 2394-2400.
33. Liu, G.M., Li, X.Z., Zhao, J.C., Hidaka, H., and Serpone, N. (2000) Photooxidation pathway of sulforhodamine-B. Dependence on the adsorption mode on TiO2 exposed to visible light radiation. Environ. Sci. Technol., 34, 3982-3990.
34. He, J.J., Zhao, J.C., Shen, T., Hidaka, H., and Serpone, N. (1997) Photosensitization of colloidal titania particles by electron injection from an excited organic dye-antennae function. J. Phys. Chem. B, 101, 9027-9034.
35. He, J.J., Zhao, J.C., Hidaka, H., and Serpone, N. (1998) EPR characteristics of a dye/colloidal TiO2 system under visible light irradiation. J. Chem. Soc., Faraday Trans., 94, 2375-2378.
36. He, J.J., Chen, F., Zhao, J.C., and Hidaka, H. (1998) Adsorption model of ethyl ester of fluorescein on colloidal TiO2 and the mechanism of the interfacial electron transfer. Colloids Surf., A, 142, 49-57.
37. Wang, Z.H., Ma, W.H., Chen, C.C., Ji, H.W., and Zhao, J.C. (2011) Probing paramagnetic species in titaniabased heterogeneous photocatalysis by electron spin resonance (ESR) spectroscopy-a mini review. Chem. Eng. J., 170, 353-362.
38. Qu, P., Zhao, J.C., Shen, T., and Hidaka, H. (1998) TiO2-Assisted photodegradation of dyes: a study of two competitive primary processes in the degradation of RB in an aqueous TiO2 colloidal solution. J. Mol. Catal. A: Chem., 129, 257-268.
39. Zhang, M., Chen, C.C., Ma, W., and Zhao, J. (2008) Visible-light-induced aerobic oxidation of alcohols in a coupled photocatalytic system Of dyesensitized TiO2 and TEMPO. Angew. Chem. Int. Ed., 47, 9730-9733.
40. Shoute, L.C.T. and Loppnow, G.R. (2002) Excited-state dynamics of alizarin-sensitized TiO2 nanoparticles from resonance Raman spectroscopy. J. Chem. Phys., 117, 842-850.
41. Ramakrishna, G., Singh, A.K., Palit, D.K., and Ghosh, H.N. (2004) Slow back electron transfer in surfacemodified TiO2 nanoparticles sensitized by alizarin. J. Phys. Chem. B, 108, 1701-1707.
42. Huber, R., Moser, J.E., Gr̈atzel, M., and Wachtveitl, J. (2002) Real-time observation of photoinduced adiabatic electron transfer in strongly coupled dye/semiconductor colloidal systems with a 6 fs time constant. J. Phys. Chem. B, 106, 6494-6499.
43. Kaniyankandy, S., Verma, S., Mondal, J.A., Palit, D.K., and Ghosh, H.N. (2009) Evidence of multiple electron injection and slow back electron transfer in alizarin-sensitized ultrasmall TiO2 particles. J. Phys. Chem. C, 113, 3593-3599.
44. Qu, P., Zhao, J., Zang, L., Shen, T., and Hidaka, H. (1998) Enhancement of the photoinduced electron transfer from cationic dyes to colloidal TiO2 particles by addition of an anionic surfactant in acidic media. Colloids Surf., A, 138, 39-50.
45. Nilsing, M., Persson, P., Lunell, S., and Ojam̈ae, L. (2007) Dye-sensitization of the TiO2 rutile (110) surface by perylene dyes: quantum-chemical periodic B3LYP computations. J. Phys. Chem. C, 111, 12116-12123.
46. Ramakrishna, S., Willig, F., and May, V. (2001) Theory of ultrafast photoinduced heterogeneous electron transfer: decay of vibrational coherence into a finite electronic-vibrational quasicontinuum. J. Chem. Phys., 115, 2743-2755.
47. Li, G., Richter, C.P., Milot, R.L., Cai, L., Schmuttenmae, C.A., Crabtree, R.H., Brudvig, G.W., and Batista, V.S. (2009) Synergistic effect between anatase and rutile TiO2 nanoparticles in dye-sensitized solar cells. Dalton Trans., 10078-10085.
48. Li, W., Li, D., Meng, S., Chen, W., Fu, X., and Shao, Y. (2011) Novel approach to enhance photosensitized degradation of rhodamine B under visible light irradiation by the ZnxCd1-xS/TiO2 nanocomposites. Environ. Sci. Technol., 45, 2987-2993.
49. Kim, W., Tachikawa, T., Majima, T., Li, C., Kim, H.-J., and Choi, W. (2010) Tin-porphyrin sensitized TiO2 for the production of H2 under visible light. Energy Environ. Sci., 3, 1789-1795.
50. Rauf, M.A. and Ashraf, S.S. (2009) Fundamental principles and application of heterogeneous photocatalytic degradation of dyes in solution. Chem. Eng. J., 151, 10-18.
51. Khataee, A.R. and Kasiri, M.B. (2010) Photocatalytic degradation of organic dyes in the presence of nanostructured titanium dioxide: influence of the chemical structure of dyes. J. Mol. Catal. A: Chem., 328, 8-26.
52. Teh, C.M. and Mohamed, A.R. (2011) Roles of titanium dioxide and ion-doped titanium dioxide on photocatalytic degradation of organic pollutants (Phenolic compounds and dyes) in aqueous solutions: a review. J. Alloys Compd., 509, 1648-1660.
53. Wu, T.X., Liu, G.M., Zhao, J.C., Hidaka, H., and Serpone, N. (1998) Photoassisted degradation of dye pollutants. V. Self-photosensitized oxidative transformation of rhodamine B under visible light irradiation in aqueous TiO2 dispersions. J. Phys. Chem. B, 102, 5845-5851.
54. Liu, G.M., Li, X.Z., Zhao, J.C., Horikoshi, S., and Hidaka, H. (2000) Photooxidation mechanism of dye alizarin red in TiO2 dispersions under visible illumination: an experimental and theoretical examination. J. Mol. Catal. A: Chem., 153, 221-229.
55. Wu, T.X., Lin, T., Zhao, J.C., Hidaka, H., and Serpone, N. (1999) TiO2- Assisted photodegradation of dyes. 9. Photooxidation of a squarylium cyanine dye in aqueous dispersions under visible light irradiation. Environ. Sci. Technol., 33, 1379-1387.
56. Liu, G.M. and Zhao, J.C. (2000) Photocatalytic degradation of dye sulforhodamine B: a comparative study of photocatalysis with photosensitization. New J. Chem., 24, 411-417.
57. Chen, C.C., Zhao, W., Li, J.Y., and Zhao, J.C. (2002) Formation and identification of intermediates visiblelight- assisted photodegradation sulforhodamine-B dye in aqueous TiO2 dispersion. Environ. Sci. Technol., 36, 3604-3611.
58. Zhang, T.Y., Oyama, T., Horikoshi, S., Hidaka, H., Zhao, J.C., and Serpone, N. (2002) Photocatalyzed N-demethylation and degradation of methylene blue in titania dispersions exposed to concentrated sunlight. Sol. Energy Mater. Sol. Cells, 73, 287-303.
59. Zhao, W., Chen, C.C., Ma, W.H., Zhao, J.C., Wang, D.X., Hidaka, H., and Serpone, N. (2003) Efficient photoinduced conversion of an azo dye on hexachloroplatinate(IV)-modified TiO2 surfaces under visible light irradiation - a photosensitization pathway. Chem. Eur. J., 9, 3292-3299.
60. Chen, C.C., Li, X.Z., Ma, W.H., Zhao, J.C., Hidaka, H., and Serpone, N. (2002) Effect of transition metal ions on the TiO2-assisted photodegradation of dyes under visible irradiation: a probe for the interfacial electron transfer process and reaction mechanism. J. Phys. Chem. B, 106, 318-324.
61. Kim, W., Tachikawa, T., Majima, T., and Choi, W. (2009) Photocatalysis of dye-sensitized TiO2 nanoparticles with thin overcoat of Al2O3: enhanced activity for H2 production and dechlorination of CCl4. J. Phys. Chem. C, 113, 10603-10609.
62. Zhao, W., Chen, C.C., Li, X.Z., Zhao, J.C., Hidaka, H., and Serpone, N. (2002) Photodegradation of sulforhodamine-B dye in platinized titania dispersions under visible light irradiation: influence of platinum as a functional co-catalyst. J. Phys. Chem. B, 106, 5022-5028.
63. Cho, Y., Choi, W., Lee, C.-H., Hyeon, T., and Lee, H.-I. (2001) Visible light-induced degradation of carbon tetrachloride on dye-sensitized TiO2. Environ. Sci. Technol., 35, 966-970.
64. Zhao, W., Sun, Y., and Castellano, F.N. (2008) Visible-light induced water detoxification catalyzed by PtII dye sensitized titania. J. Am. Chem. Soc., 130, 12566-12567.
65. Park, J. and Choi, W. (2009) TiO2- Nafion photoelectrode hybridized with carbon nanotubes for sensitized photochemical activity. J. Phys. Chem. C, 113, 20974-20979.
66. Zang, L., Lange, C., Abraham, I., Storck, S., Maier, W.F., and Kisch, H. (1998) Amorphous microporous titania modified with platinum(IV) chloride: a new type of hybrid photocatalyst for visible light detoxification. J. Phys. Chem. B, 102, 10765-10771.
67. Su, W., Chen, J., Wu, L., Wang, X., Wang, X., and Fu, X. (2008) Visible light photocatalysis on praseodymium(III)-nitrate-modified TiO2 prepared by an ultrasound method. Appl. Catal., B, 77, 264-271.
68. Mitoraj, D. and Kisch, H. (2008) The nature of nitrogen-modified titanium dioxide photocatalysts active in visible light. Angew. Chem. Int. Ed., 47, 9975-9978.
69. Zhou, X., Peng, F., Wang, H., Yu, H., and Fan, Y. (2011) Carbon nitride polymer sensitized TiO2 nanotube arrays with enhanced visible light photoelectrochemical and photocatalytic performance. Chem. Commun., 47, 10323-10325.
70. Song, L., Qiu, R., Mo, Y., Zhang, D., Wei, H., and Xiong, Y. (2007) Photodegradation of Phenol in a polymer-modified TiO2 semiconductor particulate system under the irradiation of visible light. Catal. Commun., 8, 429-433.
71. Wang, D., Wang, Y., Li, X., Luo, Q., An, J., and Yue, J. (2008) Sunlight photocatalytic activity of polypyrrole-TiO2 nanocomposites prepared by 'in situ' method. Catal. Commun., 9, 1162-1166.
72. Xu, S.H., Li, S.Y., Wei, Y.X., Zhang, L., and Xu, F. (2010) Improving the photocatalytic performance of conducting polymer polythiophene sensitized TiO2 nanoparticles under sunlight irradiation. React. Kinet. Mech. Catal., 101, 237-249.
73. Liang, H. and Li, X. (2009) Visibleinduced photocatalytic reactivity of polymer-sensitized titania nanotube films. Appl. Catal., B, 86, 8-17.
74. Zhang, H., Zong, R., Zhao, J., and Zhu, Y. (2008) Dramatic visible photocatalytic degradation performances due to synergetic effect of TiO2 with PANI. Environ. Sci. Technol., 42, 3803-3807.
75. Wang, F., Min, S., Han, Y., and Feng, L. (2010) Visible-light-induced photocatalytic degradation of methylene blue with polyaniline-sensitized TiO2 composite photocatalysts. Superlattices Microstruct., 48, 170-180.
76. Wang, Y.Z., Zhong, M.Q., Chen, F., and Yang, J.T. (2009) Visible light photocatalytic activity of TiO2/D-PVA for MO degradation. Appl. Catal., B, 90, 249-254.
77. Liao, G., Chen, S., Quan, X., Chen, H., and Zhang, Y. (2010) Photonic crystal coupled TiO2/polymer hybrid for efficient photocatalysis under visible light irradiation. Environ. Sci. Technol., 44, 3481-3485.
78. Song, L., Zhang, X., and Zeng, X. (2011) Application of poly(fluoreneco- bithiophene) as a novel sensitizer for TiO2 in the photodegradation of phenol under irradiation of GaN LED clusters. React. Kinet. Mech. Catal., 102, 295-302.
79. Zhang, D., Qiu, R., Song, L., Eric, B., Mo, Y., and Huang, X. (2009) Role of oxygen active species in the photocatalytic degradation of phenol using polymer sensitized TiO2 under visible light irradiation. J. Hazard. Mater., 163, 843-847.
80. Wang, Y.H., Hang, K., Anderson, N.A., and Lian, T.Q. (2003) Comparison of electron transfer dynamics in intramolecular and molecule-tonanoparticle charge transfer complexes. J. Phys. Chem. B, 107, 9434-9440.
81. Agrios, A.G., Gray, K.A., and Weitz, E. (2004) Narrow-band irradiation of a homologous series of chlorophenols on TiO2: charge-transfer complex formation and reactivity. Langmuir, 20, 5911-5917.
82. Paul, T., Miller, P., and Strathmann, T.J. (2007) Visible-light-mediated TiO2 photocatalysis of fluoroquinolone antibacterial agents. Environ. Sci. Technol., 41, 4720-4727.
83. Li, M., Tang, P., Hong, Z., and Wang, M. (2008) High efficient surfacecomplex- assisted photodegradation of Phenolic compounds in single anatase titania under visible-light. Colloid Surf., A, 318, 285-290.
84. Duncan, W.R. and Prezhdo, O.V. (2007) Theoretical studies of photoinduced electron Transfer in dye-sensitized TiO2. Annu. Rev. Phys. Chem., 58, 143-184.
85. Wang, N., Zhu, L., Huang, Y., She, Y., Yu, Y., and Tang, H. (2009) Drastically enhanced visible-light photocatalytic degradation of colorless aromatic pollutants over TiO2 via a chargetransfer- complex path: a correlation between chemical structure and degradation rate of the pollutants. J. Catal., 266, 199-206.
86. Park, Y., Singh, N.J., Kim, K.S., Tachikawa, T., Majima, T., and Choi, W. (2009) Fullerol-titania chargetransfer- mediated photocatalysis working under visible light. Chem. Eur. J., 15, 10843-10850.
87. Li, X.Z., Chen, C.C., and Zhao, J.C. (2001) Mechanism of photodecomposition of H2O2 on TiO2 surfaces under visible light irradiation. Langmuir, 17, 4118-4122.
88. Yu, H., Irie, H., Shimodaira, Y., Hosogi, Y., Kuroda, Y., Miyauchi, M., and Hashimoto, K. (2010) An efficient visible-light-sensitive Fe(III)-grafted TiO2 photocatalyst. J. Phys. Chem. C, 114, 16481-16487.
89. Serpone, N., Borgarello, E., and Gr̈atzel, M. (1984) Visible light induced generation of hydrogen from H2S in mixed semiconductor dispersions, improved efficiency through inter-particle electron transfer. J. Chem. Soc., Chem. Commun., 342-344.
90. Robert, D. (2007) Photosensitization of TiO2 by MxOy and MxSy nanoparticles for heterogeneous photocatalysis applications. Catal. Today, 122, 20-26.
91. Liu, G., Wang, L., Yang, H.G., Cheng, H., and Lu, G.Q. (2010) Titania-based photocatalysts-crystal growth, doping and heterostructuring. J. Mater. Chem., 20, 831-843.
92. Li, G.S., Zhang, D.Q., and Yu, J.C. (2009) A new visible-light photocatalyst: CdS quantum dots embedded mesoporous TiO2. Environ. Sci. Technol., 43, 7079-7085.
93. Lin, C.J., Yu, Y.H., and Liou, Y.H. (2009) Free-standing TiO2 nanotube array films sensitized with CdS as highly active solar light-driven photocatalysts. Appl. Catal., B, 93, 119-125.
94. Yang, L., Luo, S., Liu, R., Cai, Q., Xiao, Y., Liu, S., Su, F., and Wen, L. (2010) Fabrication of CdSe nanoparticles sensitized long TiO2 nanotube arrays for photo-catalytic degradation of anthracene-9-carbonxylic acid under green monochromatic light. J. Phys. Chem. C, 114, 4783-4789.
95. Xiao, G., Wang, X., Li, D., and Fu, X. (2008) InVO4 -sensitized TiO2 photocatalysts for efficient air purification with visible light. J. Photochem. Photobiol., A, 193, 213-221.
96. Senevirathna, M.K.I., Pitigala, P.K.D.D.P., and Tennakone, K. (2005) Water photoreduction with Cu2O quantum Dotson TiO2 nano-particles. J. Photochem. Photobiol., A, 171, 257-259.
97. Shu, X., An, Z., Wang, L., and He, J. (2009) Metal oxide-sensitized TiO2 and TiO2-xNx with efficient charge transport conduits. Chem. Commun., 5901-5903.
98. Liu, H. and Gao, L. (2006) Preparation and properties of nanocrystalline a-Fe2O3-sensitized TiO2 nanosheets as a visible light photocatalyst. J. Am. Ceram. Soc., 89, 370-373.
99. Ho, W., Yu, J.C., Lin, J., Yu, J., and Li, P. (2004) Preparation and photocatalytic behavior of MoS2 and WS2 nanocluster sensitized TiO2. Langmuir, 20, 5865-5869.
100. Lim, C.-S., Chen, M.-L., and Oh, W.- C. (2011) Synthesis of CdSe-TiO2 photocatalyst and their enhanced photocatalytic activities under UV and visible light. Bull. Korean Chem. Soc., 32, 1657-1661.
101. Vogel, R., Hoyer, P., and Weller, H. (1994) Quantum-sized PbS, CdS, Ag2S, Sb2S3, and Bi2S3 particles as sensitizers for various nanoporous wide-bandgap semiconductors. J. Phys. Chem., 98, 3183-3188.
102. Sun, W.-T., Yu, Y., Pan, H.-Y., Gao, X.-F., Chen, Q., and Peng, L.-M. (2008) CdS quantum dots sensitized TiO2 nanotube-array photoelectrodes. J. Am. Chem. Soc., 130, 1124-1125.
103. Sambur, J.B. and Parkinson, B.A. (2010) CdSe/ZnS core/shell quantum dot sensitization of low index TiO2 single crystal surfaces. J. Am. Chem. Soc., 132, 2130-2131.
104. Mali, S.S., Desai, S.K., Dalavi, D.S., Betty, C.A., Bhosale, P.N., and Patil, P.S. (2011) CdS-sensitized TiO2 nanocorals: hydrothermal synthesis, characterization, application. Photochem. Photobiol. Sci., 10, 1652-1658.
105. Wu, L., Yu, J.C., and Fu, X.Z. (2006) Characterization and photocatalytic mechanism of nanosized CdS coupled TiO2 nanocrystals under visible light irradiation. J. Mol. Catal. A: Chem., 244, 25-32.
106. Evans, J.E., Springer, K.W., and Zhang, J.Z. (1994) Femtosecond studies of interparticle. Electron transfer in a coupled CdS-TiO2 colloidal system. J. Chem. Phys., 101, 6222-6225.
107. Wang, J.Y., Liu, Z.H., Zheng, Q., He, Z.K., and Cai, R.X. (2006) Preparation of photosensitized nanocrystalline TiO2 hydrosol by nanosized CdS at low temperature. Nanotechnology, 17, 4561-4566.
108. Fuji, H., Ohtaki, M., Eguchi, K., and Arai, H. (1998) Preparation and photocatalytic activities of a semiconductor composite of CdS embedded in a TiO2 gel as a stable oxide semiconducting matrix. J. Mol. Catal. A: Chem., 129, 61-68.
109. Gao, B., Kim, Y.J., Chakraborty, A.K., and Lee, W.I. (2008) Efficient decomposition of organic compounds with FeTiO3/TiO2 heterojunction under visible light irradiation. Appl. Catal., B, 83, 202-207.
110. Xu, J., Wang, W., Sun, S., and Wang, L. (2012) Enhancing visible-lightinduced photocatalytic activity By coupling with wide-band-gap semiconductor: a case study on Bi2WO6/TiO2. Appl. Catal., B, 111-112, 126-132.
111. Kowalska, E., Abe, R., and Ohtani, B. (2009) Visible light-induced photocatalytic reaction of gold-modified titanium(IV) oxide particles: action spectrum analysis. Chem. Commun., 2, 241-243.
112. Yu, J., Dai, G., and Huang, B. (2009) Fabrication and characterization of visible-light-driven plasmonic photocatalyst Ag/AgCl/TiO2 nanotube-arrays. J. Phys. Chem. C, 113, 16394-16401.
113. Jin, R., Cao, Y., Mirkin, C., Kelly, K., Schatz, G., and Zheng, J. (2001) Photoinduced conversion of silver nanospheres to nanoprisms. Science, 294, 1901-1903.
114. Pichat, P. (1987) Surface properties, activity and selectivity of bifunctional powder photocatalysts. New J. Chem., 11, 135-140.
115. Sclafani, A., Mozzanega, M.-N., and Pichat, P. (1991) Effects of silver deposits on the photocatalytic activity of titanium dioxide samples for the dehydrogenation or oxidation of 2- propanol. J. Photochem. Photobiol., A, 59, 181-189.
116. Naya, S., Inoue, A., and Tada, H. (2011) Visible-light activity enhancement of gold-nanoparticle-loaded titanium(IV) dioxide by preferential excitation of localized surface Plasmon resonance. ChemPhysChem, 12, 2719-2723.
117. Kowalska, E., Mahaney, O.O.P., Abe, R., and Ohtani, B. (2010) Visible-lightinduced photocatalysis through surface Plasmon excitation of gold on titania surfaces. Phys. Chem. Chem. Phys., 12, 2344-2355.
118. Chen, X., Zheng, Z., Ke, X., Jaatinen, E., Xie, T., Wang, D., Guo, C., Zhao, J., and Zhu, H. (2010) Supported silver nanoparticles as photocatalysts under ultraviolet and visible light irradiation. Green Chem., 12, 414-419.
119. Zhu, H., Chen, X., Zheng, Z., Ke, X., Jaatinen, E., Zhao, J., Guo, C., Xie, T., and Wang, D. (2009) Mechanism of supported gold nanoparticles as photocatalysts under ultraviolet and visible light irradiation. Chem. Commun, 7524-7526.
120. Furube, A., Du, L., Hara, K., Katoh, R., and Tachiya, M. (2007) Ultrafast Plasmon-induced electron transfer from gold nanodots into TiO2 nanoparticles. J. Am. Chem. Soc., 129, 14852-14853.
121. Sakai, N., Fujiwara, Y., Takahashi, Y., and Tatsuma, T. (2009) Plasmon resonance-based generation of Cathodic photocurrent At electrodeposited gold nanoparticles coated with TiO2 films. ChemPhysChem, 10, 766-769.
122. Ide, Y., Matsuoka, M., and Ogawa, M. (2010) Efficient visible-lightinduced photocatalytic activity on gold-nanoparticle-supported layered titanate. J. Am. Chem. Soc., 132, 16762-16764.
123. Szacilowski, K., Macyk, W., Drzewiecka-Matuszek, A., Brindell, M., and Stochel, G. (2005) Bioinorganic photochemistry: frontiers and mechanisms. Chem. Rev., 105, 2647-2694.
124. Choi, W., Termin, A., and Hoffmann, M.R. (1994) The role of metal-ion dopants in quantum-sized TiO2: correlation between photoreactivity and charge-carrier recombination dynamics. J. Phys. Chem., 98, 13669-13679.
125. Fuerte, A., Herńandez-Alonso, M.D., Maira, A.J., Mart́inez-Arias, A., Ferńandez-Garćia, M., Conesa, J.C., Soria, J., and Munuera, G. (2002) Nanosize Ti-W mixed oxides: effect of doping level in the photocatalytic degradation of toluene using sunlight-type excitation. J. Catal., 212, 1-9.
126. Anpo, M. and Takeuchi, M. (2003) Design and development of highly reactive titanium oxide photocatalysts operating under visible light irradiation. J. Catal., 216, 505-516.
127. Highfield, J.G. and Pichat, P. (1989) Photoacoustic study of the influence of platinum loading and bulk doping with chromium III ions on the reversible photochromic effect in titanium dioxide. Correlation with photocatalytic properties. New J. Chem., 13, 61-66.
128. Li, G., Wang, X., Hu, X., Leung, C.W., Zhang, Z., and Yu, J.C. (2006) An ordered cubic Im3m mesoporous Cr-TiO2 visible light photocatalyst. Chem. Commun., 2717-2719.
129. Serpone, N., Lawless, D., Disdier, J., and Herrmann, J.-M. (1994) Spectroscopic, photoconductivity and photocatalytic studies of TiO2 colloids: alone and with lattice-doped Cr(III), Fe(III), and V(V) cations. Langmuir, 10, 643-652.
130. Gracia, F., Holgado, J.P., Caballero, A., and Gonzalez-Elipe, A.R. (2004) Structural, optical, and photoelectrochemical properties of Mn+-TiO2 model thin film photocatalysts. J. Phys. Chem. B, 108, 17466-17476.
131. Choi, J., Park, H., and Hoffmann, M.R. (2010) Effects of single metal-ion doping on the visible light photoreactivity of TiO2. J. Phys. Chem. C, 114, 783-792.
132. Sato, S. (1986) Photocatalytic activity of NOx-doped TiO2 in the visible light region. Chem. Phys. Lett., 123, 126-128.
133. Zhang, H., Chen, G., and Bahnemann, D.W. (2009) Photoelectrocatalytic materials for environmental applications. J. Mater. Chem., 19, 5089-5121.
134. Rehman, S., Ullah, R., Butt, A.M., and Gohar, N.D. (2009) Strategies of making TiO2 and ZnO visible light active. J. Hazard. Mater., 170, 560-569.
135. Kumar, S.G. and Devi, L.G. (2011) Review on modified TiO2 photocatalysis under UV/visible light: selected results and related mechanisms on interfacial charge carrier transfer dynamics. J. Phys. Chem. A, 115, 13211-13241.
136. Dozzi, M.V., Ohtani, B., and Selli, E. (2011) Absorption and action spectra analysis of ammonium fluoride-doped titania photocatalysts. Phys. Chem. Chem. Phys., 13, 18217-18227.
137. Wang, Q., Chen, C.C., Ma, W.H., Zhu, H.Y., and Zhao, J.C. (2009) Pivotal role of fluorine in tuning band structure and visible-light photocatalytic activity of nitrogen-doped TiO2. Chem. Eur. J., 15, 4765-4769.
138. Chen, C.C., Ma, W.H., and Zhao, J.C. (2010) Photocatalytic degradation Of organic pollutants by co-doped TiO2 under visible light irradiation. Curr. Org. Chem., 14, 630-644.
139. Zuo, F., Wang, L., Wu, T., Zhang, Z., Borchardt, D., and Feng, P. (2010) Self-doped Ti3+ enhanced photocatalyst for hydrogen production under visible light. J. Am. Chem. Soc., 132, 11856-11857.
140. Ariga, H., Taniike, T., Morikawa, H., Tada, M., Min, B.K., Watanabe, K., Matsumoto, Y., Ikeda, S., Saiki, K., and Iwasawa, Y. (2009) Surface-mediated visible-light photo-oxidation on pure TiO2(001). J. Am. Chem. Soc., 131, 14670-14672.
141. Li, R., Kobayashi, H., Guo, J., and Fan, J. (2011) Visible-light-driven surface reconstruction of mesoporous TiO2: toward visible-light absorption and enhanced photocatalytic activities. Chem. Commun., 47, 8584-8586.
142. Cronemeyer, D.C. (1952) Electrical and optical properties of rutile single crystals. Phys. Rev., 87, 876-886.
143. Cronemeyer, D.C. (1959) Infrared absorption of reduced rutile TiO2 single crystals. Phys. Rev., 113, 1222-1226.
144. Ghosh, A.K., Wakim, F.G., and Addiss, R.R. (1969) Photoelectronic processes in rutile. Phys. Rev., 184, 979-988.
145. Kuznetsov, V.N. and Serpone, N. (2009) On the origin of the spectral bands in the visible absorption spectra of visible-light-active TiO2 specimens analysis and assignments. J. Phys. Chem. C, 113, 15110-15123.
146. Justicia, I., Garcia, G., Battiston, G.A., Gerbasi, R., Ager, F., Guerra, M., Caixach, J., Pardo, J.A., Rivera, J., and Figueras, A. (2005) Photocatalysis in the visible range of sub-stoichiometric anatase films prepared by MOCVD. Electrochim. Acta, 50, 4605-4608.
147. Justicia, I., Garcia, G., Vazquez, L., Santiso, J., Ordejon, P., Battiston, G., Gerbasi, R., and Figueras, A. (2005) Self-doped titanium oxide thin films for efficient visible light photocatalysis: an example: nonylphenol photodegradation. Sens. Actuators, B, 109, 52-56.
148. Justicia, I., Ordejon, P., Canto, G., Mozos, J.L., Fraxedas, J., Battiston, G., Gerbasi, R., and Figueras, A. (2002) Designed self-doped titanium oxide thin films for efficient visible-light photocatalysis. Adv. Mater., 14, 1399-1402.
149. Tao, J., Luttrell, T., and Batzill, M. (2011) A two-dimensional phase of TiO2 with a reduced bandgap. Nat. Chem., 3, 296-300.
150. Serpone, N., Emeline, A.V., Kuznetsov, V.N., and Ryabchuk, V.K. (2010) in Environmentally Benign Photocatalysts: Applications of Titanium Oxide-Based Materials (eds M. Anpo and P.V. Kamat), Springer, New York, Dordrecht and Heidelberg, London, pp. 35-112.
151. Emeline, A.V., Kuznetsov, V.N., Ryabchuk, V.K., and Serpone, N. (2008) Visible-light-active titania photocatalysts. The case of N-doped TiO2s-properties and some fundamental issues. Int. J. Photoenergy. doi: 10.1155/ 2008/258394
152. Martyanov, I.N., Uma, S., Rodrigues, S., and Klabunde, K.J. (2004) Structural defects cause TiO2-based photocatalysts to be active in visible light. Chem. Commun., 2476-2477.
153. Komaguchi, K., Maruoka, T., Nakano, H., Imae, I., Oyama, Y., and Harima, Y. (2010) Electron-transfer reaction of oxygen species on TiO2 nanoparticles induced by sub-band-gap illumination. J. Phys. Chem. C, 114, 1240-1245.
154. Chen, X.B., Liu, L., Yu, P.Y., and Mao, S.S. (2011) Increasing solar absorption for photocatalysis with black hydrogenated titanium dioxide nanocrystals. Science, 331, 746-750.
155. Yan, X., Ohno, T., Nishijima, K., Abe, R., and Ohtani, B. (2006) Is methylene blue an appropriate substrate for a photocatalytic activity test? A study with visible-light responsive titania. Chem. Phys. Lett., 429, 606-610.