Photocatalytic degradation glyphosate with cerium and nitrogen co-doped TiO2 under visible irradiation

الموضوعات : Journal of the Iranian Chemical Research

Li Lin ¹ (Department of Chemical and Environmental Engineering, Hunan City University,413000,China)
Xuejun Zhang ² (Department of Chemical and Environmental Engineering, Hunan City University,413000,China)
Xing Xiong ³ (Department of Chemical and Environmental Engineering, Hunan City University,413000,China)

تاريخ الإرسال : 05 الجمعة , رمضان, 1432 تاريخ التأكيد : 12 الإثنين , ربيع الثاني, 1433 تاريخ الإصدار : 27 الثلاثاء , ربيع الثاني, 1433

الکلمات المفتاحية: Cerium, Photocatalytic, TiO2, Visible Light,

ملخص المقالة :

Cerium and nitrogen co-doped TiO2 nanocrystals were synthesized by a simple sol-gel process, usingtetrabutyl titanate as the raw materials with (NH4)2Ce(SO4)3 and urea as ion donors. The co-doped TiO2nanoparticles were characterized by X-ray diffraction and transmission electro microscopy. Thephotodegradation of glyphosate has been investigated in aqueous suspensions of doped TiO2 under visibleirradiation. The results exhibit a higher thermal stability of anatase than pure TiO2.The uniform test resultsshow the optimal conditions: nCe/nTi nN/nTi and calcining temperature was 0.08,0.01 and 800􀀀. The highestdegradation rate for co-doped TiO2 show five times photocatalytic activity of Degussa P25.

المصادر:

REFERENCES
[1] A. Fujishima, T.N. Rao, A.D. Tryk, J. Photo- Chem. Photobiol. C: Photochem. Rev. 1 (2000) 1-21.
[2] M.R. Hoffmann, S.T. Martin, W. Choi, D.W. Bahnemann, Chem. Rev. 95 (1995) 69-96.
[3] M.A. Fox, M.T. Dulay, Chem. Rev. 93 (1993) 341-357.
[4] T. Tianzhong, Zh. Long, T. Baozhu, J. Colloid Interface Sci. 315 (2007) 382-388.
[5] W. Huiying, W. Youshi, L. Ning, J. Mater. Sci. 39 (2004) 1305-1312.
[6] X. Anwu, G. Yuan, L. Hanqin, J. Catal. 207 (2002) 151-157.
[7] L. Zhaolin, G. Bing, H. Liang, J. Phys. Chem. Solids 66 (2000) 161-166.
[8] P.W. Park, J.S. Ledford, Langmuir 12 (1996) 1794-1805.
[9] F.B. Li, X.Z. L i, M.F. Hou, Appl. Catal. A 285 (2005) 181-189..
[10] R. Zeng, J. Wang, C.U.I. Jianyu, H.U. Lin, M.U. Kangguo, J. Rare Earths 28 (2010) 353-356.
[11] N. Xinshu, L. Sujuan, C. Huihui, Zh. Jianguo, J. Rare Earths 29 (2011) 225-229.
[12] R. Asahi, T. Morikawa, T. Ohwaki, Science 293 (2001) 269-271.