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Journal of Environmental Nanotechnology

(A Quarterly Peer-reviewed and Refereed International Journal)
ISSN(Print):2279-07 48; ISSN(Online):2319-5541

Titania Nanoparticles Modified with Nitrogen: Enhanced Visible-light Photocatalytic Activity


Titanium dioxide (TiO2), for instance, is one of the most popular and promising materials in heterogeneous photocatalytic application. Several attempts have been made to induce bathochromic (red) shifts of the band gap of Titania in order to utilize the solar light. In this study we have reported the synthesis of nitrogen doped TiO2 nanoparticles by sol-gel method using urea and ammonia as the nitrogen source and by direct oxidation of TiN were tested for visible-light photocatalytic degradation of methylene blue and phenol. The catalysts were characterized by N2 adsorption desorption studies, X-ray diffraction and Diffuse reflectance UV-visible spectroscopy techniques. The chemically modified TiO2 shows strong absorption for visible light and high activities for the degradation of methylene blue and phenol aqueous solution. The presence of two different surface states characteristics of Pure and nitrogen doped TiO2 was confirmed by the shift in absorption from 398 nm to 405 nm and 409 nm from the DRUV-Visible spectral results. The spherical morphology of the catalysts was observed from the SEM images.

Article Type: Research Article

Corresponding Author:

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Gurulakshmi Mariappan 1,  Periyasami Vijayan 2,  Chinnathambi Suresh 3,  Kannan Shanthi 4.  

1. Department of Chemistry, Madras Christian College, Tambaram, Chennai-600059

2. Department of Chemistry, Chikkanna Govt. Arts College, Tirupur, 641202 India.

3. Electrodics and electrocatalysis Division, CSIR-Central Electro Chemical Research Institute, Karaikudi – 630006

4. Department of Chemistry, Anna University, Chennai-600025, India

J. Environ. Nanotechnol. Volume 3, No.4 pp.67-72
ISSN: 2279-0748 eISSN: 2319-5541
-ENT 144111.pdf
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Asahi, R., Morikawa, T., Ohwaki, T., Aoki, K., Taga, Y., Visible-light photocatalysis in nitrogen-doped titanium oxides, Science., 293, 269–271 (2001).
Bahnemann, D. W., Current challenges in photocatalysis: Improved photocatalysts and appropriate photoreactor engineering, Res. Chem. Intermed., 26, 207-220 (2000).
Beydilli, M. I., Pavlostathis, S. G. and Tincher, W. C., Biological decolorization of the azo dye reactive red 2 under various oxidation-reduction conditions, Water Environ. Res., 72, 698-705 (2000).
Rafols, C. and Barcelo, D., Determination of mono- and disulphonated azo dyes by liquid
chromatography–atmospheric pressure ionization mass spectrometry, J. Chromatogr. A., 777, 177–192 (1997).
Choi, W., Termin, A. and Hoffmann, M. R., The role of metal ion dopants in quantum-sized TiO2: correlation between photoreactivity and charge carrier recombination dynamics, J. Phys. Chem., 98, 13669-13679 (1994).
Davydov, L., Reddy, E. P., France, P., and Smirniotis P.G., Sonophotocatalytic destruction of organic contaminants in aqueous systems on TiO2 powders, Appl. Catal. B., 32, 95–105 (2001).
Forgas, E., Cserhati, T. and Oros, G., Removal of synthetic dyes from wastewater: A review, Environ. Intl., 30, 953–971 (2004).
Fox, M. A. and Dulay, M. T., Heterogeneous Photocatalysis, Chem. Rev., 93, 341-357 (1993).
Fujishima, A. and Honda, K., Electrochemical photolysis of water at a semiconductor electrode, Nature, 238, 37-38 (1972).
Guaratini, C. and Zanoni, M., Textile Dyes, Quimica Nova. 23, 71–79 (2000).
Gurulakshmi, M., Selvaraj, M., Selvamani, A., Vijayan, P., Sasi Rekha, N. R., and Shanthi, K., Enhanced visible-light photocatalytic activity of V2O5/S–TiO2 nanocomposites, Appl. Catal. A:Gen., 449, 31–46 (2012).
Houas, A., Lachheb, H., Ksibi, M., Elaloui, E., Guillard, C. and Herrmann. J.M., Photocatalytic degradation pathway of methylene blue in water, Appl. Catal. B., 31, 145–157 (2001).
Kim, S. W., Khan, R., Kim, T. J., and Kim, W. J., Visible-light induced Photocatalytic degradation of 4–chlorophenol and phenolic compounds in aqueous suspension of pure Titania: Demonstrating the existence of a surface-complex mediated path, Bull. Korean Chem. Soc. 29, 6-9 (2008).
Koyuncu, I., Direct filtration of Procion dye bath wastewaters by nanofiltration membranes: flux and removal characteristics, J. Chem. Tech. Biotechnol., 78, 1219-1224 (2003).
Liakou, S., Zissi, U., Kornaros, M. and Lyberatos, G., Combined chemical and biological treatment of azo dye-containing wastewaters, Chem. Eng. Commun., 190, 645-661 (2003).
Liu, J., Qin, W., Zuo, S., Yu, Y. and Hao, Z., Solvothermal induced phase transition and visible photocatalytic activity of nitrogen-doped titania, J. Hazard. Mater., 163, 273-278 (2009).
Liu, R. L. H., Chiu, H. M. and Yeh R. Y. L., Colloid interaction and coagulation of dye wastewater with extra application of magnetites, Int. J. Environ. Stud., 59, 143-158 (2002).
Ohno, T., Mitsui, T. and Matsumura, M., Photocatalytic activity of S-doped TiO2 photocatalyst under visible light, Chem. Lett., 32 (2003) 364-365.
Ren, W., Ai, Z., Jia, F., Zhang, L., Fan, X. and Zou, Z., Low temperature preparation and visible light photocatalytic activity of mesoporous carbon-doped crystalline TiO2, Appl. Catal., B: Environ., 69, 138-144 (2007).
Saha, N. C. and Tompkins, H. G., Titanium nitride oxidation chemistry: An X-ray photoelectron spectroscopy study, J. Appl. Phys., 72, 3072-3080 (1992).
Sanghi, R. and Bhattacharya, B., Review on decolorisation of aqueous dye solutions by low cost adsorbents, Res. J. Can.,118, 256-269 (2002).
Sathish, M., Viswanathan, B., Viswanath, R. P. and Gopinath, C. S., DFT studies on hetero atom (N or/and S) substitution in TiO2, Chem. Mater., 17, (2005) 6349-6353.
Weber, E.J. and Stickney, V.C., Hydrolysis kinetics of Reactive Blue 19-Vinyl Sulfone, Water Res., 27, (1993) 63–67.