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

محورهای موضوعی : 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)

تاریخ دریافت : 1390/05/14 تاریخ پذیرش : 1390/12/15 تاریخ انتشار : 1391/01/01

کلید واژه: Cerium, Photocatalytic, TiO2, Visible Light,

چکیده مقاله :

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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