Facile fabrication of stable metal-free CQDs/g-C3N4 heterojunctions with efficiently enhanced visible-light photocatalytic activity

Separation and Purification Technology

Volumn 171, Issue , 2016, Pages 229-237

  Hong, Yuanzhi ^a   Meng, Yadong ^a   Zhang, Guangyi ^a   Yin, Bingxin ^a   Zhao, Yong ^a   Shi, Weidong ^a   Li, Changsheng ^a  

^a JIANGSU UNIVERSITY   (China)

Author keywords

CQDs; g C3N4; Heterojunctions; Rhodamine B; Tetracycline hydrochloride

Indexed keywords

ENERGY CONVERSION; LIGHT; PHOTOCATALYSIS; PHOTOCATALYSTS; PHOTODEGRADATION; RATE CONSTANTS; SEMICONDUCTOR QUANTUM DOTS; TEMPERATURE;

CQDS; ENVIRONMENTAL PURIFICATIONS; G-C3N4; PHYSICOCHEMICAL TECHNIQUES; RHODAMINE B; TETRACYCLINE HYDROCHLORIDE; VISIBLE LIGHT PHOTOCATALYTIC ACTIVITY; VISIBLE-LIGHT IRRADIATION;

HETEROJUNCTIONS;

EID: 84980315343     PISSN: 13835866     EISSN: 18733794     Source Type: Journal    
DOI: 10.1016/j.seppur.2016.07.025     Document Type: Article

References (49)

1. [1] Kubacka, A., Marcos, F.G., Gerardo, C., Advanced nanoarchitectures for solar photocatalytic applications. Chem. Rev. 112 (2012), 1555–1614.
2. [2] Chen, C.C., Ma, W.H., Zhao, J.C., Semiconductor-mediated photodegradation of pollutants under visible-light irradiation. Chem. Soc. Rev. 39 (2010), 4206–4219.
3. [3] Chong, M.N., Jin, B., Chow, C.W., Saint, C., Recent developments in photocatalytic water treatment technology: a review. Water Res. 44 (2010), 2997–3027.
4. [4] Dong, S.Y., Feng, J.L., Fan, M.H., Pi, Y.Q., Hu, L.M., Han, X., Liu, M.L., Sun, J.Y., Sun, J.H., Recent developments in heterogeneous photocatalytic water treatment using visible light-responsive photocatalysts: a review. RSC Adv. 5 (2015), 14610–14630.
5. [5] Liu, G., Wang, L., Yang, H., Cheng, H., Lu, G.Q., Titania-based photocatalysts-crystal growth, doping and heterostructuring. J. Mater. Chem. 20 (2012), 831–843.
6. 2 by coupling with carbon nanotubes and supporting gold. J. Hazard. Mater. 235–236 (2012), 230–236.
7. [7] Zhao, Z.W., Sun, Y.J., Dong, F., Graphitic carbon nitride based nanocomposites: a review. Nanoscale 7 (2015), 15–37.
8. 4-based photocatalysts for hydrogen generation. J. Phys. Chem. Lett. 5 (2014), 2101–2107.
9. [9] Cao, S.W., Low, J.X., Yu, J.G., Jaroniec, K., Polymeric photocatalysts based on graphitic carbon nitride. Adv. Mater. 27 (2015), 2150–2176.
10. 4 composites visible light irradiation. ACS Sustain. Chem. Eng. 3 (2015), 269–276.
11. [11] Wang, X.C., Maeda, K., Thomas, A., Takanabe, K., Xin, G., Carlesson, J.M., Domen, K., Antonietti, M., A metal-free polymeric photocatalyst for hydrogen production from water under visible light. Nat. Mater. 8 (2009), 76–80.
12. 4 under visible light irradiation. Langmuir 26 (2010), 3894–3901.
13. [13] Du, A.J., Sanvito, S., Li, Z., Wang, D.W., Jiao, Y., Liao, T., Sun, Q., Ng, Y.H., Zhu, Z.H., Amal, R., Smith, S.C., Hybrid graphene and graphitic carbon nitride nanocomposites: gap opening, electron-hole puddle, interfacial charge transfer, and enhanced visible light response. J. Am. Chem. Soc. 134 (2012), 4393–4397.
14. 4 core/shell heterojunction array for efficient photoelectrochemical water splitting. Nano Letters 12 (2012), 6464–6473.
15. [15] Wang, Y.J., Wang, Q.S., Zhan, X.Y., Wang, F.M., Safdar, M., He, J., Visible light driven type II heterostructures and their enhanced photocatalysis properties: a review. Nanoscale 5 (2013), 8326–8339.
16. 4 composites with significantly enhanced visible-light photocatalytic activity for triphenylmethane dye degradation. Appl. Catal. B: Environ. 144 (2014), 885–892.
17. 4 composites with enhanced photocatalytic activity under visible light irradiation. Chem. Eng. J. 271 (2015), 96–105.
18. 4 with enhanced visible light photocatalytic activity. Appl. Surf. Sci. 324 (2015), 324–331.
19. 6 composite photocatalysts for efficient degradation of methyl orange. Appl. Catal. B: Environ. 108–109 (2011), 100–107.
20. 6 composites for methyl orange degradation. Ceram. Int. 40 (2014), 9077–9086.
21. 6 heterojunctions with enhanced visible light photocatalytic activities. ACS Appl. Mater. Interfaces 5 (2013), 7079–7085.
22. 4 photocatalyst with core/shell structure formed by self-assembly. Adv. Funct. Mater. 22 (2012), 1518–1524.
23. 4 nanorods hybrid architectures and their enhanced visible-light-driven photocatalytic performances. Chem. Eng. J. 241 (2014), 344–351.
24. [24] Xiong, M., Chen, L., Yuan, D., He, J., Luo, S.L., Au, C.T., Yin, S.F., Controlled synthesis of graphitic carbon nitride/beta bismuth oxide composite and its high visible-light photocatalytic activity. Carbon 86 (2015), 217–224.
25. 4 with high visible light activity. J. Hazard. Mater. 28 (2014), 713–722.
26. 2O composite catalyst with enhanced photocatalytic activity under visible light irradiation. Mater. Res. Bull. 56 (2014), 19–24.
27. 4 hybrid nanocomposites with enhanced photocatalytic performance under visible-light irradiation. J. Phys. Chem. C 117 (2013), 26135–26143.
28. 4 nanocomposites with high photocatalytic activity and applications in drug delivery. RSC Adv. 4 (2014), 62492–62498.
29. 4/graphitic carbon nitride heterojunctions and excellent visible-light-driven photocatalytic performance for rhodamine B. J. Alloys Compd. 612 (2014), 143–148.
30. 4 composite photocatalyst with improved visible light photocatalytic activities in RhB degradation. Appl. Catal. B: Environ. 129 (2013), 255–263.
31. 2 nanosheets with enhanced photocatalytic activity toward organic pollutant degradation. Chem. Eng. J. 260 (2015), 117–125.
32. 2. Appl. Catal. B: Environ. 164 (2015), 420–427.
33. 3 composite photocatalyst. Ceram. Int. 40 (2014), 11963–11969.
34. 3. Appl. Catal. B: Environ. 150–151 (2014), 564–573.
35. [35] Zhang, S.W., Li, J.X., Zeng, M.Y., Zhao, G.X., Xu, J.Z., Hu, W.P., Wang, X.K., In situ synthesis of water-soluble magnetic graphitic carbon nitride photocatalyst and its synergistic catalytic performance. ACS Appl. Mater. Interfaces 5 (2013), 12735–12743.
36. 4 hybrid for photocatalytic degradation of aqueous organic pollutants by visible light. Ind. Eng. Chem. Res. 53 (2014), 17294–17302.
37. 2 nanosheet composites. Carbon 68 (2014), 718–724.
38. [38] Zhu, S.J., Meng, Q.N., Wang, L., Zhang, J.H., Song, Y.B., Jin, H., Zhang, K., Sun, H.C., Wang, H.Y., Yang, B., Highly photoluminescent carbon dots for multicolor patterning, sensors, and bioimaging. Angew. Chem. Int. Ed. 52 (2013), 3953–3957.
39. [39] Li, Y., Zhang, B.P., Zhao, J.X., Ge, Z.H., Zhao, X.K., Zou, L., ZnO/carbon quantum dots heterostructure with enhanced photocatalytic properties. Appl. Surf. Sci. 279 (2013), 367–373.
40. [40] Liu, Y., Yu, Y.X., Zhang, W.D., Carbon quantum dots-doped CdS microspheres with enhanced photocatalytic performance. J. Alloys Compd. 569 (2013), 102–110.
41. 2 for photocatalytic application. J. Alloys Compd. 622 (2015), 303–308.
42. 2 nanobelt heterostructures and their broad spectrum photocatalytic prosperities under UV, visible, and near-infrared irradiation. Nano Energy 11 (2015), 419–427.
43. 6 hybrid materials with enhanced photocatalytic activity toward organic pollutants degradation and mechanism insight. Appl. Catal. B: Environ. 168–169 (2015), 51–61.
44. 4 complex photocatalysts with enhanced photocatalytic activity and stability under visible light. J. Mater. Chem. 22 (2012), 10501–10506.
45. [45] Liu, J., Liu, Y., Liu, N.Y., Han, Y.Z., Zhang, X., Huang, H., Lifshitz, Y., Lee, S.T., Zhong, J., Kang, Z.H., Metal-free efficient photocatalyst for stable visible water splitting via a two-electron pathway. Science 347 (2015), 970–974.
46. 4 heterojunctions with enhanced visible light efficiency in photocatalytic degradation of pollutants. Appl. Catal. B: Environ. 180 (2016), 663–673.
47. 2. Chemosphere 92 (2013), 925–932.
48. 6 composites with enhanced simulated solar photoactivity toward absorbed and free tetracycline in water. Appl. Catal. B: Environ. 176–177 (2015), 11–19.
49. 2 films prepared by spin coating. Phys. Scr., 85, 2012, 065601.