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

Subject Areas : Journal of the Iranian Chemical Research

Li Lin ¹ , Xuejun Zhang ² , Xing Xiong ³

1 - Department of Chemical and Environmental Engineering, Hunan City University,413000,China
2 - Department of Chemical and Environmental Engineering, Hunan City University,413000,China
3 - Department of Chemical and Environmental Engineering, Hunan City University,413000,China

Received: 2011-08-05 Accepted : 2012-03-05 Published : 2012-03-20

Keywords: Cerium, Photocatalytic, TiO2, Visible Light,

Abstract :

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.

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