A facile method for the preparation of titania-coated magnetic porous silica and its photocatalytic activity under UV or visible light

Colloids and Surfaces A: Physicochemical and Engineering Aspects

Volumn 360, Issue 1-3, 2010, Pages 184-189

  Wang, Chao ^a   Ao, Yanhui ^a   Wang, Peifang ^a   Hou, Jun ^a   Qian, Jin ^a  

^a HOHAI UNIVERSITY   (China)

Author keywords

Magnetic porous silica; Magnetically separable; Photocatalysis; Titania; X 3B

Indexed keywords

COMPLEXATION; DEGRADATION; IRRADIATION; MAGNETIC PROPERTIES; PHOTOCATALYSIS; SCANNING ELECTRON MICROSCOPY; SILICA; TITANIUM DIOXIDE;

COMPOSITE PHOTOCATALYSTS; DEGUSSA P25; FACILE METHOD; MAGNETICALLY SEPARABLE; PHOTOCATALYTIC ACTIVITIES; POROUS SILICA; REACTIVE BRILLIANT RED X-3B; SEM; UV- AND; VIBRATING SAMPLE MAGNETOMETRY; VISIBLE IRRADIATION; VISIBLE LIGHT; VISIBLE-LIGHT IRRADIATION; XRD;

MAGNETISM;

AZO DYE; ETHYLENE GLYCOL; FERRIC ION; IRON OXIDE; NANOCOMPOSITE; NANOPARTICLE; SILICON DIOXIDE; TITANIUM DIOXIDE;

ANALYTIC METHOD; ARTICLE; CHEMICAL ANALYSIS; CONCENTRATION (PARAMETERS); CONTROLLED STUDY; DEGRADATION KINETICS; ISOTHERM; LOW TEMPERATURE PROCEDURES; MAGNETIC SEPARATION; MATERIAL COATING; NANOANALYSIS; NANOFABRICATION; PARTICLE SIZE; PHASE SEPARATION; PHOTOCATALYSIS; POROSITY; PRIORITY JOURNAL; SCANNING ELECTRON MICROSCOPY; SURFACE PROPERTY; ULTRAVIOLET RADIATION; X RAY DIFFRACTION;

EID: 77951978452     PISSN: 09277757     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.colsurfa.2010.02.030     Document Type: Article

References (29)

1. Ollis D. Contaminant degradation in water, heterogenous photocatalysis degrades helogenated hydrocarbon contaminants, Environ. Sci. Technol. 1985, 19:480-484.
2. Mills A., Hunte S. An overview of semiconductor photocatalysis. J. Photochem. Photobiol. A 1997, 108:1-35.
3. Herrmann J. Heterogeneous photocatalysis: fundamentals and applications to the removal of various types of aqueous pollutants. Catal. Today 1999, 53:115-129.
4. Vohra A., Goswami D.Y., Deshpande D.A., Block S.S. Enhanced photocatalytic disinfection of indoor air. Appl. Catal. B 2006, 65:57-65.
5. 2. Environ. Sci. Technol. 2004, 38:1600-1604.
6. 2. Environ. Sci. Technol. 2008, 42:913-919.
7. Srinivasan M., White T. Degradation of methylene blue by three-dimensionally ordered macroporous titania. Environ. Sci. Technol. 2007, 41:4405-4409.
8. Hoffmann M.R., Martin S.T., Choi W.Y., Bahnemann D.W. Environmental applications of semiconductor photocatalysis. Chem. Rev. 1995, 95:69-96.
9. 2 microshere with high photocatalytic activity for water treatment. Colloid Surf. A 2008, 324:202-207.
10. 2 catalyst. J. Mol. Catal. A: Chem. 2005, 237:199-205.
11. 2. Appl. Catal. B 1999, 23:143-157.
12. Jung K.Y., Park S.B. Enhanced photoactivity of silica-embedded titania particles prepared by sol-gel process for the decomposition of trichloroethylene. Appl. Catal. B 2000, 25:156-249.
13. Shiraishi Y., Tachibana K., Hirai T. Desulfurization and denitrogenation process for light oils based on chemical oxidation followed by liquid-liquid extraction. Ind. Eng. Chem. Res. 2002, 41:4362-4375.
14. Otsuki S., Nonaka T., Takashima N. Oxidative desulfurization of light gas oil and vacuum gas oil by oxidation and solvent extraction. Energy Fuel 2000, 14:1232-1239.
15. Sun H.W., Tateda M., Ike M., Fujita M. Short- and long-term sorption/desorption of polycyclic aromatic hydrocarbons onto artificial solids: effects of particle and pore sizes and organic matters. Water Res. 2003, 37:2960-2968.
16. Sinha A., Ganguly R., Puri I.K. Magnetic separation from superparamagnetic particle suspensions. J. Magn. Magn. Mater. 2009, 321:2251-2256.
17. Chen H.T., Kaminske M.D., Ebner A.D., Ritter J.A., Rosengart A.J. Theoretical analysis of a simple yet efficient portable magnetic separator design for separation of magnetic nano/micro-carriers from human blood flow. J. Magn. Magn. Mater. 2007, 313:127-134.
18. Ashtari P., Wang K., Yang X.H., Huang S.S., Yamini Y. Novel separation and preconcentration of trace amounts of copper(II) in water samples based on neocuproine modified magnetic microparticles. Anal. Chim. Acta 2005, 550:18-23.
19. Kim S., Shibata E., Sergiienko R., Nakamura T. Purification and separation of carbon nanocapsules as a magnetic carrier for drug delivery systems. Carbon 2008, 46:1523-1529.
20. 2-coated activated carbon. Colloid Surf. A 2009, 312:125-130.
21. Fuertes A.B., Tartaj P. A facile route for the preparation of superparamagnetic porous carbons. Chem. Mater. 2006, 18:1675-1679.
22. Xie Y.B., Yuan C.W. Visible-light responsive cerium ion modified titania sol and nanocrystallites for X-3B dye degradation. Appl. Catal. B 2003, 46:251-259.
23. 2-coated activated carbon. Colloid Surf. A 2008, 312:125-130.
24. Pankhurst Q.A., Connolly J., Jones S.K., Dobson J. Applications of magnetic nanoparticles in biomedicine. J. Phys. D: Appl. Phys. 2003, 36:R167-R181.
25. Matos J., Laine J., Herrmann J.M. Effect of the type of activated carbons on the photocatalytic degradation of aqueous organic pollutants by UV-irradiated titania. J. Catal. 2001, 200:10-20.
26. Chen F., Xie Y.D., Zhao J.C., Lu G.X. Photocatalytic degradation of dyes on a magnetically separated photocatalyst under visible and UV irradiation. Chemosphere 2001, 44:1159-1168.
27. Beydoun D., Amal R. Novel photocatalyst: Titania-coated magnetite: Activity and photodissolution. J. Phys. Chem. B. 2000, 104:4387-4396.
28. 2 nanopowders under UV and visible light irradiation. J. Phys. Chem. B 2006, 110:6804-6809.
29. 2 co-doped with nitrogen and iron (III). J. Phys. Chem. C 2007, 111:10618-10623.