Magnetizing of nano-materials on example of Degussa's P-25 TiO2 photocatalyst: Synthesis of magnetic aggregates, characterization and possible use

Separation and Purification Technology

Volumn 136, Issue , 2014, Pages 274-285

  Ljubas, Davor ^a   Franzreb, Matthias ^b   Hansen, Hans Christian Bruun ^c   Weidler, Peter G ^b  

^a UNIVERSITY OF ZAGREB   (Croatia)

^b KARLSRUHE INSTITUTE OF TECHNOLOGY   (Germany)

^c UNIVERSITY OF COPENHAGEN   (Denmark)

Author keywords

Degussa's P 25 titanium dioxide; Green rust; Magnet separation technology; Organic substrates degradation; Photocatalysis

Indexed keywords

DEGUSSA; GREEN RUST; ORGANIC SUBSTRATE; SEPARATION TECHNOLOGIES; TIO;

PHOTOCATALYSIS;

EID: 84908497933     PISSN: 13835866     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.seppur.2014.09.018     Document Type: Article

References (72)

1. J. Svoboda, T. Fujita, Recent developments in magnetic methods of material separation, Miner. Eng. 16 (2003) 785-792.
2. J. Svoboda, Magnetic Methods for the Treatment of Minerals, Elsevier, Amsterdam, 1987.
3. R. Birrs, M. Parker, in: R.J. Wakeman (Ed.), Progress in filtration and separation, vol. 2, Elsevier, Amsterdam, 1981, pp. 171-303.
4. J.H.P. Watson, Magnetic filtration, J. Appl. Phys. 44 (1973) 4209-4213.
5. J. Oberteuffer, High gradient magnetic separation, IEEE Trans. Magn. 9 (1973) 303-306.
6. M. Franzreb, Magnettechnologie in der Verfahrenstechnik der wässriger Medien (Magnet technology in process engineering of aqueous media), in: Wissenschaftliche Berichte FZKA 6916 - Habilitation, Institute for Technical Chemistry, Water & Geotechnology, Forschungszentrum Karlsruhe, Germany, Karlsruhe, 2003 (in German).
7. S.M. O'Brien, O.R.T. Thomas, P. Dunnill, Non-porous magnetic chelator supports for protein recovery by immobilised metal affinity adsorption, J. Biotechnol. 50 (1996) 13-25.
8. A. Heeboll-Nielsen, W.S. Choe, A.P.J. Middelberg, O.R.T. Thomas, Efficient inclusion body processing using chemical extraction and high gradient magnetic fishing, Biotechnol. Prog. 19 (2003) 887-898.
9. A. Meyer, D.B. Hansen, C.S.G. Gomes, T.J. Hobley, O.R.T. Thomas, M. Franzreb, Demonstration of a strategy for product purification by high-gradient magnetic fishing: recovery of superoxide dismutase from unconditioned whey, Biotechnol. Prog. 21 (2005) 244-254.
10. C. Hoffmann, M. Franzreb, W.H. Holl, A novel high-gradient magnetic separator (HGMS) design for biotech applications, IEEE Trans. Appl. Supercond. 12 (2002) 963-966.
11. A. Meyer, S. Berensmeier, M. Franzreb, Direct capture of lactoferrin from whey using magnetic micro-ion exchangers in combination with high-gradient magnetic separation, React. Funct. Polym. 67 (2007) 1577-1588.
12. M.R. Hoffmann, S.T. Martin, W.Y. Choi, D.W. Bahnemann, Environmental applications of semiconductor photocatalysis, Chem. Rev. 95 (1995) 69-96.
13. D. Ollis, E. Pelizzetti, N. Serpone, Heterogeneous photocatalysis in the environment: application to water purification, in: N. Serpone, E. Pelizzeti (Eds.), Photocatalysis: Fundamentals and Applications, John Wiley & Sons, New York; Chichester; Brisbane; Toronto; Singapore, 1989, pp. 603-637.
14. A. Mills, S. Le Hunte, An overview of semiconductor photocatalysis, J. Photochem. Photobiol., A 108 (1997) 1-35.
15. J.-M. Herrmann, Heterogeneous photocatalysis: fundamentals and applications to the removal of various types of aqueous pollutants, Catal. Today 53 (1999) 115-129.
16. O. Legrini, E. Oliveros, A.M. Braun, Photochemical processes for water-treatment, Chem. Rev. 93 (1993) 671-698.
17. 2-catalyzed photooxidation of arsenite to arsenate in aqueous samples, Chemosphere 44 (2001) 751-757.
18. U.I. Gaya, A.H. Abdullah, Heterogeneous photocatalytic degradation of organic contaminants over titanium dioxide: a review of fundamentals, progress and problems, J. Photochem. Photobiol., C 9 (2008) 1-12.
19. O.M. Alfano, D. Bahnemann, A.E. Cassano, R. Dillert, R. Goslich, Photocatalysis in water environments using artificial and solar light, Catal. Today 58 (2000) 199-230.
20. 2 nano-spheres, J. Photochem. Photobiol., A 185 (2007) 19-25.
21. R.L. Pozzo, M.A. Baltanas, A.E. Cassano, Supported titanium oxide as photocatalyst in water decontamination: state of the art, Catal. Today 39 (1997) 219-231.
22. R.L. Pozzo, M.A. Baltanás, A.E. Cassano, Towards a precise assessment of the performance of supported photocatalysts for water detoxification processes, Catal. Today 54 (1999) 143-157.
23. 2 powders for the abatement of the bacteria (E. coli) under solar simulated light: Influence of the isoelectric point, Appl. Catal., B 63 (2006) 76-84.
24. 2 photoelectrodes based on characteristics of nanopowder used, Sol. Energy Mater. Sol. Cells 76 (2003) 15-24.
25. 2-Degussa P25 photocatalysts, Appl. Catal., B 35 (2001) 1-7.
26. J. Xu, Y. Ao, D. Fu, C. Yuan, Low-temperature preparation of anatase titanic-coated magnetite, J. Phys. Chem. Solids 69 (2008) 1980-1984.
27. Y. Ao, J. Xu, D. Fu, X. Shen, C. Yuan, A novel magnetically separable composite photocatalyst: titania-coated magnetic activated carbon, Sep. Purif. Technol. 61 (2008) 436-441.
28. Sh. Wang, Sh. Zhou, Titania deposited on soft magnetic activated carbon as a magnetically separable photocatalyst with enhanced activity, Appl. Surf. Sci. 256 (2010) 6191-6198.
29. V. Belessi, D. Lambropoulou, I. Konstantinou, R. Zboril, J. Tucek, D. Jancik, T. Albanis, D. Petridis, Structure and photocatalytic performance of magnetically separable titania photocatalysts for the degradation of propachlor, Appl. Catal., B 87 (2009) 181-189.
30. Y. Gao, B. Chen, H. Li, Y. Ma, Preparation and characterization of a magnetically separated photocatalyst and its catalytic properties, Mater. Chem. Phys. 80 (2003) 348-355.
31. 2 nanolayer coating on strontium ferrite nanoparticles for magnetic photocatalyst, Colloids Surf., A 289 (2006) 47-52.
32. 2 in the relation to crystallinity, Appl. Catal., B 71 (2007) 163-168.
33. D. Beydoun, R. Amal, Implications of heat treatment on the properties of a magnetic iron oxide-titanium dioxide photocatalyst, Mater. Sci. Eng. B 94 (2002) 71-81.
34. M. Inagaki, R. Nonaka, B. Tryba, A.W. Morawski, Dependence of photocatalytic activity of anatase powders on their crystallinity, Chemosphere 64 (2006) 437-445.
35. F. Chen, Y.D. Xie, J.C. Zhao, G.X. Lu, Photocatalytic degradation of dyes on a magnetically separated photocatalyst under visible and UV irradiation, Chemosphere 44 (2001) 1159-1168.
36. 2 supported on nickel ferrite, Chin. J. Chem. Eng. 15 (2007) 190-195.
37. 2 and silica-coated magnetic particle, Mater. Chem. Phys. 108 (2008) 147-153.
38. D. Beydoun, R. Amal, G.K.C. Low, S. McEvoy, Novel photocatalyst: titania-coated magnetite. Activity and photodissolution, J. Phys. Chem. B 104 (2000) 4387-4396.
39. 4 composite, Solid State Sci. 9 (2007) 737-743.
40. 2 photocatalyst doped with iodine for organic pollutant degradation, Sep. Purif. Technol. 96 (2012) 50-57.
41. J.J. Jwo, R.M. Noyes, Oscillations in chemical systems. IX. Reactions of cerium (IV) with malonic acid and its derivatives, J. Am. Chem. Soc. 97 (1975) 5422-5431.
42. Food-Safety-Commission and Pesticides-Expert-Committee, NOVALURON-Evaluation Report, Minister of Health, Labor and Welfare, 2003. 〈www.fsc.go.jp/english/novaluron-160708.pdf〉 (last accessed on 19.07.14).
43. Diflubenzuron in drinking-water: Use for vector control in drinking-water sources and containers (Background document for development of WHO guidelines for drinking-water quality), World Health Organization, 2008.
44. Ch. K. Vogt, Herstellung und Anwendung von Aggregaten aus oberflächenaktiven Nanopartikeln und Magnetit für den Einsatz in der Magnetseparation (Production and use of aggregates from surface-active nanoparticles and magnetite for magnet-separation applications), Dissertation, Faculty of Civil Engineering, Geology and Environmental Sciences, University of Karlsruhe, Karlsruhe, Germany, 2006 (in German).
45. J. Marák, I. Nagyová, D. Kaniansky, Computer-assisted choice of discrete spacers for anionic isotachophoresis separations, J. Chromatogr., A 1018 (2003) 233-249.
46. M. Dankovà, S. Strašík, D. Kaniansky, Determination of orotic acid in urine by capillary zone electrophoresis in tandem-coupled columns with diode array detection, J. Chromatogr., A 990 (2003) 121-132.
47. G. Abbt-Braun, U. Lankes, F.H. Frimmel, Structural characterization of aquatic humic substances - the need for a multiple method approach, Aquat. Sci. 66 (2004) 151-170.
48. 2 powders on the decolourisation of humic acids, J. Photochem. Photobiol., A 148 (2002) 121-128.
49. A. Kerc, M. Bekbolet, A.M. Saatci, Sequential oxidation of humic acids by ozonation and photocatalysis, Ozone: Sci. Eng. 25 (2003) 497-504.
50. E.G. Mariquit, Ch. Salim, H. Hinode, The role of calcium ions in the photocatalytic oxidation of humic acid at neutral pH, Ann. NY Acad. Sci. 1140 (2008) 389-393.
51. 2 photocatalytic oxidation of monochloroacetic acid and pyridine: influence of ozone, J. Photochem. Photobiol., A 136 (2000) 163-168.
52. H.J. Kuhn, S.E. Braslavsky, R. Schmidt, Chemical actinometry, Pure Appl. Chem. 76 (2004) 2105-2146.
53. 2 suspensions. I: Effect of charge-trapping species on the degradation kinetics, Appl. Catal., A 180 (1999) 25-33.
54. D. Wöhrle, M.W. Tausch, W.-D. Stohrer, Photochemie-Konzepte, Methoden, Experimente (Photochemistry - concepts, methods, experiments, Wiley-VCH, Weinheim, Berlin, New York, Chichester, Brisbane, Singapore, Toronto, 1998 (in German).
55. D. Ljubas, Solar photocatalysis - a possible step in drinking water treatment, Energy 30 (2005) 1699-1710.
56. 2 particles for recovery and reuse in solar photocatalysis, Water Res. 37 (2003) 3180-3188.
57. S. Malato, P. Fernández-Ibáńez, M.I. Maldonado, J. Blanco, W. Gernjak, Decontamination and disinfection of water by solar photocatalysis: recent overview and trends, Catal. Today 147 (2009) 1-59.
58. 2 photocatalysts, Water Res. 40 (2006) 833-839.
59. Ch. Wang, J. Rabani, D.W. Bahnemann, J. Dohrmann, Photonic efficiency and quantum yield of formaldehyde formation from methanol in the presence of various TiO(2) photocatalysts, J. Photochem. Photobiol., A 148 (2002) 169-176.
60. O.I. Tokode, R. Prabhu, L.A. Lawton, P.K.J. Robertson, Effect of controlled periodic-based illumination on the photonic efficiency of photocatalytic degradation of methyl orange, J. Catal. 290 (2012) 138-142.
61. 2 and iron oxide supported on fluorocarbon films. Part 1: Effect of preparation parameters on photocatalytic degradation of organic pollutant at neutral pH, Appl. Catal., B 89 (2009) 635-644.
62. F. Mazille, T. Schoettl, N. Klamerth, S. Malato, C. Pulgarin, Field solar degradation of pesticides and emerging water contaminants mediated by polymer films containing titanium and iron oxide with synergistic heterogeneous photocatalytic activity at neutral pH, Water Res. 44 (2010) 3029-3038.
63. 2, Chem. Eng. J. 181-182 (2012) 189-195.
64. D. Panias, M. Taxiarchou, I. Paspaliaris, A. Kontopoulos, Mechanisms of dissolution of iron oxides in aqueous oxalic acid solutions, Hydrometallurgy 42 (1996) 257-265.
65. D. Beydoun, R. Amal, G. Low, S. McEvoy, Occurrence and prevention of photodissolution at the phase junction of magnetite and titanium dioxide, J. Mol. Catal. A: Chem. 180 (2002) 193-200.
66. 4 heterojunctions for the photocatalytic oxidation of humic acid under solar light irradiation, J. Hazard. Mater. 243 (2012) 302-310.
67. 2, RSC - The Royal Society of Chemistry, Cambridge, 2010.
68. 2 films, Surf. Coat. Technol. 191 (2005) 155-160.
69. C.S. Uyguner-Demirel, M. Bekbolet, Significance of analytical parameters for the understanding of natural organic matter in relation to photocatalytic oxidation, Chemosphere 84 (2011) 1009-1031.
70. 2-assisted photocatalytic degradation of azo dyes in aqueous solution: kinetic and mechanistic investigations - a review, Appl. Catal., B 49 (2004) 1-14.
71. E. Remoundaki, R. Vidali, P. Kousi, A. Hatzikioseyian, M. Tsezos, Photolytic and photocatalytic alterations of humic substances in UV (254 nm) and solar concentric parabolic concentrator (CPC) reactors, Desalination 248 (2009) 843-851.
72. C.S. Uyguner, M. Bekbolet, A comparative study on the photocatalytic degradation of humic substances of various origins, Desalination 176 (2005) 167-176.