Browse > Article

Preparation and Characteristics of Visible-Light-Active $TiO_2-_xN_x$ Nanoparticles for Photocatalytic Activities  

Yun, Tae-Kwan (Department of Chemistry, Keimyung University)
Bae, Jae-Young (Department of Chemistry, Keimyung University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.31, no.11, 2009 , pp. 1019-1024 More about this Journal
Abstract
Visible-light-active $TiO_2-_xN_x$ nanoparticles with a homogeneous anatase crystalline structure were successfully prepared through a hydrolysis of $TiCl_4$ with ammonia solution. The samples were characterized by X-ray diffraction (XRD), Transmission electron microscopy (TEM), $N_2$-sorption, and UV-vis diffuse reflectance spectra (DRS) techniques. The light absorption onset shifted from 390 nm on pure $TiO_2$ to the visible region at 530 nm on nitrogen-doped $TiO_2$. A clear decrease in the band gap was deduced from the DRS results. The photocatalytic activity was evaluated from the photodegradation of congo red solution under visible light irradiation. The photocatalyst showed the highest photocatalytic activity at an optimal value of nitrogen doping concentration. This was suggested that the nitrogen doping should have an important effects on the improvement of photocatalytic activity.
Keywords
$TiO_2-_xN_x$; Visible light; Photocatalyst; Hydrolysis; Ammonia solution;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Zhao, W., Ma, W. H., Chen, C. C., Zhao, J. C., and Shuai, Z. G., “Efficient degradation of toxic organic pollutants with $Ni_{2}O_{3}/TiO_{2-x}B_{x}$ under visible irradiation,”J. Am. Chem. Soc., 126(15), 4782-4783(2004)   DOI   ScienceOn
2 Ren, W. J., Ai, Z. H., Jia, F. L., Zhang, L. Z., Fan, X. X., and Zou, Z. G., “Low temperature preparation and visible light photocatalytic activity of mesoporous carbon-doped crystalline $TiO_{2}$,”Appl. Catal. B: Environ., 69(3-4), 138-144(2007)   DOI   ScienceOn
3 Mozia, S., Tomaszewska, M., Kosowaska, B., Grzmil, B., and Morawski, A. W.,“ Decomposition of nonionic surfactant on a nitrogen-doped photocatalyst under visible-light irradiation,” Appl. Catal. B: Environ., 55(3), 195-200(2005)   DOI   ScienceOn
4 Lin, J., Lin, Y., Liu, P., Meziani, M. J., Allard, L. F., and Sun, Y., “Hot-Fluid Annealing for Crystalline Titanium Dioxide Nanoparticles in Stable Suspension,”J. Am. Chem. Soc., 124(38), 11514-11518(2002)   DOI   ScienceOn
5 Yamashita, H., Ichihashi, Y., Takeuchi, M., Kishiguchi, S., and Anpo, M., “Characterization of metal ion-implanted titanium oxide photocatalysts operating under visible light irradiation,”J. Synchrotron Rad., 6, 451-452(1999)   DOI   ScienceOn
6 Fujishima, A., Rao, T. N., and Tryk, D. A.,“ Titanium dioxide photocatalysis,”J. Photochem. Photobiol. C: Photochem. Rev., 1(1), 1-21(2000)   DOI   ScienceOn
7 Irie, H., Watanabe, Y., and Hashimoto, K., “Nitrogen- Concentration Dependence on Photocatalytic Activity of $TiO_{2-x}N_{x}$ Powders,”J. Phys. Chem. B, 107(23), 5483-5486(2003)   DOI   ScienceOn
8 Ihara, T., Miyoshi, M., Iriyama, Y., Matsumoto, O., and Sugihara, S., “Visible-light-active titanium oxide photocatalyst realized by an oxygen-deficient structure and by nitrogen doping,”Appl. Catal. B: Environ., 42(4), 403-409(2003)   DOI   ScienceOn
9 Borgarello, E., Kiwi, J., Gratzel, M., and Pelizzetti, E.,“ Visible light induced water cleavage in colloidal solutions of chromiumdoped titanium dioxide particles,”J. Am. Chem. Soc., 104(11), 2996-3002(1982)   DOI
10 Asahi, R., Morikawa, T., Ohwaki, T., Aoki, K., and Taga, Y., “Visible-light photocatalysis in Nitrogen-doped titanium oxides,”Science, 293(5528), 269-271(2001)   DOI   PUBMED   ScienceOn
11 Sato, S., “Photocatalytic activity of NOx-doped TiO2 in the visible light region,”Chem. Phys. Lett., 123(1-2), 126-128(1986)   DOI   ScienceOn
12 Anpo, M., and Takeuchi, M. “Design and development of second-generation titanium oxide photocatalysts to better our environment-approaches in realizing the use of visible light,” Int. J. Photoenergy, 3(2), 89-94(2001)   DOI
13 Harris, M. T., Brunson, R. R., and Byers, C. H.,“ The basecatalyzed hydrolysis and condensation reactions of dilute and concentrated TEOS solutions,”J. Non-Cryst. Solids, 121(1-3), 397-403(1990)   DOI   ScienceOn
14 Huo, Y., Bian, Z., Zhang, X., Jin, Y., Zhu, J., and Li, H., “Highly Active $TiO_{2-x}N_{x}$ Visible Photocatalyst Prepared by NDoping in $Et_{3}N$/EtOH Fluid under Supercritical Conditions,”J. Phys. Chem. C, 112(16), 6546-6550(2008)   DOI   ScienceOn
15 Li, D., Haneda, H., Labhsetwar, N. K., Hishita, S., and Ohashi, N., 'Visible-light-driven photocatalysis on fluorine-doped $TiO_{2}$ powders by the creation of surface oxygen vacancies,' Chem. Phys. Lett., 401(4-6), 579-584(2005)   DOI   ScienceOn
16 Hoffmann, M. R., Martin, S. T., Choi, W., and Bahnemann, D. W., “Environmental Applications of Semiconductor Photocatalysis,” Chem. Rev., 95(1), 69-96(1995)   DOI   ScienceOn
17 Stylidi, M., Kondarides, D. I., and Verykios, X. E., “Visible light-induced photocatalytic degradation of Acid Orange 7 in aqueous $TiO_{2}$,”Appl. Catal. B: Environ., 47(3), 189-201(2004)   DOI   ScienceOn
18 Linsebigler, A. L., Lu, G., and Yates, J. T.,“ Photocatalysis on $TiO_{2}$ Surfaces: Principles, Mechanisms, and Selected Results,” Chem. Rev., 95(3), 735-758(1995)   DOI   ScienceOn
19 Yu, J. G., Zhou, M. H., Cheng, B., and Zhao, X. J.,“ Preparation, characterization and photocatalytic activity of in situ N,Scodoped $TiO_{2}$powders,”J. Mol. Catal. A: Chem., 246(1-2), 176-184(2006)   DOI   ScienceOn
20 Wang, Z. P., Cai, W. M., Hong, X. T., Zhao, X. L., Xu, F., and Cai, C. G., “Photocatalytic degradation of phenol in aqueous nitrogen-doped TiO2 suspensions with various light sources,” Appl. Catal. B: Environ., 57(3), 223-231(2005)   DOI   ScienceOn
21 Valentin, C. D., Finazzi, E., Pacchioni, G., Selloni, A., Livraghi, S., Paganini M. C., and Giamello, E., “N-doped $TiO_{2}$: theory and experiment,”Chem. Phys., 339(1-3), 44-56(2007)   DOI   ScienceOn