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Vol. 25 No. 2 (2013): Vol 25 Issue 2

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Controlled Synthesis and Photocatalytic Activity of TiO2 Nanoparticles by a Novel Gel-Network Precipitation Method

https://doi.org/10.14233/ajchem.2013.12824
Yingling Wang
School of Chemistry and Environmental Science, Henan Normal University, Key Laboratory for Yellow River and Huaihe River Water Environment and Pollution Control, Ministry of Education, Xinxiang 453007, Henan Province, P.R China ; School of Basic Medicine, Xinxiang Medical University, Xinxiang 453003, Henan Province, P.R. China
Youhai Xie
School of Chemistry and Environmental Science, Henan Normal University, Key Laboratory for Yellow River and Huaihe River Water Environment and Pollution Control, Ministry of Education, Xinxiang 453007, Henan Province, P.R China
Jianmei Yuan
School of Basic Medicine, Xinxiang Medical University, Xinxiang 453003, Henan Province, P.R. China
Guoguang Liu
School of Chemistry and Environmental Science, Henan Normal University, Key Laboratory for Yellow River and Huaihe River Water Environment and Pollution Control, Ministry of Education, Xinxiang 453007, Henan Province, P.R China

Corresponding Author(s) : Yingling Wang

wangyingling2004@163.com

Asian Journal of Chemistry, Vol. 25 No. 2 (2013): Vol 25 Issue 2

Abstract

Using gelatin as a based template, monodispersed spherical TiO2 nanoparticles were successfully synthesized by a novel gel-network precipitation(GNP) method. The well-crystallized anatase TiO2 have narrow size distribution of 20 nm. The aim of our work was to investigate the influence of reaction conditions on the formation process, structure and photocatalytic activity of the samples. TG-DTA, XRD, TEM, FT-IR, UV-VIS DRS and HPLC were used to characterize the samples. The results showed that the particle sizes were related to the network structure of gelatin, not only could the crystalline phases and sizes of nanoparticles be controlled, but the aggregation and agglomeration could be prevented by gel-network. The products have smaller particle size and better homogeneity. To examine the photocatalytic activity of the samples, the photocatalyic degradation rate of rhodamine B (RB) was investigated in the suspension of TiO2 nanoparticles. It was found that well-crystallized anatase TiO2 (y = 8 %) calcined at 650 ºC for 2 h nearly induced complete degradation of rhodamine B. Relationship between degradation rate of rhodamine B and grain sizes of TiO2 nanoparticles under different gelatin concentration and calcination temperature were given. The enhancing of the photocatalytic activity was attributed to the increase of phase transformation temperature and uniformity of the particle sizes.

Keywords

Nanocrystalline TiO2 Gel-network precipitation method Photocatalytic activity Rhodamine B
Wang, Y., Xie, Y., Yuan, J., & Liu, G. (2012). Controlled Synthesis and Photocatalytic Activity of TiO2 Nanoparticles by a Novel Gel-Network Precipitation Method. Asian Journal of Chemistry, 25(2), 739–744. https://doi.org/10.14233/ajchem.2013.12824
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References
  1. M. Schiavello, Photocatalysis and Environment, Kluwer Academic Publishers, Dordrecht (1988).
  2. D.F. Ollis and H. Al-Ekabi, Photocatalytic Purification and Treatment of Water and Air, Amsterdam (1993).
  3. M.R. Hoffmann, S.T. Martin, W. Choi and D.W. Bahnemenn, Chem. Rev., 95, 69 (1995).
  4. D.M. Blake, Bibliography of Work on the Photocatalytic Removal of Hazardous Compounds from Water and Air, NREL/TP-430-22197, Golden Co. (1997).
  5. J. Tseng and C.P. Huang, In: Proceedings of the 1st International Symposium on Chemical Oxidationechnologies for the Nineties, Vanderbilt University, Nashville, TN, 1, 262 (1991).
  6. J.M. Herrmann, Catal. Today, 53, 115 (1999).
  7. R. Andreozzi, V. Caprio, A. Insola and R. Marotta, Catal. Today, 53, 51 (1999).
  8. O. Ligrini, E. Oliveros and A. Braun, Chem. Rev., 93, 671 (1993).
  9. H. Zollinger, In eds.: H.F. Eblel and C.D. Brenzinger, Colour Chemistry, New York: VCH, edn. 1 (1987).
  10. C.E. Searle, Chemical Carcinogenesis, ACS Monograph, Washington, DC: American Chemical Society (1976).
  11. C.T. Helmes, C.C. Sigman, Z.A. Fund, M.K. Thompson, M.K. Voeltz and M. Makie, J. Environ. Sci. Health A, 19, 97 (1984).
  12. M. Boeninger, Carcinogenicity and Metabolism of Azo Dyes, Especially those Derived from Benzidine, DHHS (NIOSH), 80, 119 (1980).
  13. J.J. Roxon, A.J. Ryan and S.E. Wright, Food Cosmet. Toxicol., 5, 367 (1967).
  14. F. Cot, A. Larbot, G. Nabias and L. Cot, J. Eur. Ceram. Soc., 18, 2175 (1998).
  15. J. Yang, S. Mei and J.M.F. Ferreira, J. Am. Ceram. Soc., 84, 1696 (2001).
  16. Y. Zheng, E. Shi, Z. Chen, W. Li and X. Hu, J. Mater. Chem., 11, 1547 (2001).
  17. H.K. Park, Y.T. Moon and D.K. Kim, J. Am. Ceram. Soc., 79, 2727 (1996).
  18. K.J.D. MacKenzie, Trans. J. Br. Ceram. Soc., 74, 29 (1975).
  19. A. Gribb and J.F. Banfield, Am. Min., 82, 717 (1997).
  20. Y. Ma and J.N. Yao, Chemosphere, 38, 2407 (1999).
  21. Y. Ma and J.N. Yao, J. Photochem. Photobiol. A: Chem., 116, 167 (1998).
  22. T.X. Wu, G.M. Liu, J.C. Zhao, Hidaka and N. Serpone, J. Phys. Chem. B, 102, 5845 (1998).
  23. F.L. Zhang, J.C. Zhao, L. Zang, T. Shen, H. Hidaka, E. Pelizzetti and N. Serpone, J. Mol. Catal. A: Chem., 120, 173 (1997).
  24. T. Watanabe, T. Takizawa and K. Honda, J. Phys. Chem., 81, 1845 (1977).
  25. H. Ogawa and A. Abe, J. Electrochem. Soc., 128, 685 (1981).
  26. J.F. Rabek, Photo Stabilization of Polymers, Principles and Applications, London, p. 182 (1990).
  27. L.A. Phillips and G.B. Raupp, J. Mol. Catal., 77, 297 (1992).
  28. G. Ramis, G. Busca, V. Lorenzelli and P. Forzatti, Appl. Catal., 64, 243 (1990).
  29. A.A. Tsyganenko, D.V. Pozdnyakov and V.N. Filimonov, J. Mol. Struct., 29, 299 (1975).
  30. G.G. Liu, X.Z. Zhang, Y.J. Xu, X.S. Niu and X.J. Ding, Chemosphere, 55, 1287 (2004).
  31. G.G. Liu, X.Z. Zhang, Y.J. Xu, X.S. Niu, L.Q. Zheng and X.J. Ding, Chemosphere, 59, 1367 (2005).
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