Characterization and Photocatalytic Activity of Nano-TiO2 Doped with Iron and Niobium for Turquoise Blue Dye Removal
Keywords:
Photocatalysis, Titanium Dioxide, Doping, Iron, Niobium, Turquoise Blue Dye
Abstract
The nano-TiO2 photocatalysts doped with Iron and Niobium for dye wastewater treatment were prepared by temperature-controlled sol-gel method. The effects of these dopants on the physical and chemical properties of TiO2 were compared with the commercially available Degussa TiO2 P25. Among these characteristics are crystalline size, the presence of absolute anatase phase, band gap energy and specific surface area. The characterization data were correlated to photocatalytic activities using Turquoise blue dye (TBD) as model pollutant. Single doping (with Nb) and co-doping (Fe and Nb) catalyst reached complete decolorization within 2.5 hours and 3 hours. In addition, their kinetic reaction rate constants of apparent first-order model are 0.0258 min-1 and 0.0225 min-1, respectively. The presence of Nb as traps is considered to play a crucial key in enhancing the photocatalytic activity.References
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3. Estrellan C.R., Salim C., Hinode H. (2009). “Photocatalytic activity of sol–gel derived TiO2 co-doped with Iron and Niobium”, Reaction Kinetics and Catalysis Letters 98, 187–192
4. Fujishima A., Zhang X. (2006). “Titanium dioxide photocatalysis: present situation and future approaches”, Comptes Rendus Chimie 9, 750–760
5. Gallo J. , Mactal M., Borja J., Gallardo S., Hinode H., Ngaotrakanwiwat P. (2011, January 20 – 21). “Photocatalytic Degradation of Turquoise Blue Dye in Immobilized NanoTiO2-AC and UV System: Optimization Using Response Surface Methodology”. In Proceedings: 3rd Regional Conference on Chemical Engineering, Metro Manila, Philippines.
6. Hirano M., Ichihashi Y. (2009). “Phase transformation and precipitation behavior of niobium component out of niobium-doped anatase-type TiO2 nanoparticles synthesized via hydrothermal crystallization”, Journal of Materials Science 44, 6135–6143
7. Körbahti B. K., Tanyolaç A.( 2008). “Electrochemical treatment of simulated textile wastewater with industrial components and Levafix Blue CA reactive dye: Optimization through response surface methodology”, Journal of Hazardous Materials 151, 422–431
8. Ma Y., Gao Y., Chen B., Li H. (2003). “Preparation and characterization of a magnetically separated photocatalyst and its catalytic properties”, Materials Chemistry and Physics 80, 348–355
9. Nowak I., Ziolek M.. (1999). “Niobium Compounds: Preparation, Characterization, and Application in Heterogeneous Catalysis”, Chemica Reviews, 99, 3603−3624
10. Sajjad A.K. L., Shamaila S., Tian B., Chen F., Zhang J. (2010). “Comparative studies of operational parameters of degradation of azo dyes in visible light by highly efficient WOx/TiO2 photocatalyst ”, Journal of Hazardous Materials 177, 781 –791
11. Silva C.G., Faria J.L. (2003). “Photochemical and photocatalytic degradation of an azo dye in aqueous solution by UV irradiation”, Journal of Photochemistry and Photobiology A: Chemistry 155, 133 –143
12. Sun J., Quiao L., Sun S., Wang G. (2008). Hinode “Photocatalytic degradation of Orange G on nitrogen-doped TiO2 catalysts under visible light and sunlight irradiation”, Journal of Hazardous Materials 155, 312–319.
13. Tayade R. J., Surolia P. K., Kulkarni R. G., Jasra R. V. (2007). “Photocatalytic degradation of dyes and organic contaminants in water using nanocrystalline anatase and rutile TiO2” Science and Technology of Advanced Materials 8, 455-462
14. Wang L. K., Hung Y., Lo H. H., Yapijakis C. (2004). Handbook of Industrial and Hazardous Wastes Treatment 2nd. Marcel Dekker, Inc, pp 379-408
15. Wu J. C.S., Chen C.H. (2004). “A visible-light response vanadium-dopedtitania nanocatalyst by sol–gel method”, Journal of Photochemistry and Photobiology A: Chemistry 163, 509–515
16. Zhang J., Tong T., Tian B., Chen F., He D. (2008). “Preparation of Fe3+-doped TiO2 catalysts by controlled hydrolysis of titanium alkoxide and study on their photocatalytic activity for methyl orange degradation”, Journal of Hazardous Materials 155, 572–579
17. Ziolek M. (2003). “Niobium-containing catalysts—the state of the art”, Catalysis Today 78, 47–64
Published
2012-12-31
How to Cite
Doan, N. M., Estrellan, C. R., Purnomo, A., Gallardo, A., Salim, C., & Hinode, H. (2012). Characterization and Photocatalytic Activity of Nano-TiO2 Doped with Iron and Niobium for Turquoise Blue Dye Removal. ASEAN Journal of Chemical Engineering, 12(1), 34-41. Retrieved from https://jurnal.ugm.ac.id/v3/AJChE/article/view/8120
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