Photocatalytic Degradation and Kinetics of Methyl Orange with Bi-Doped TiO2 under Simulated Sunlight
Photocatalytic Degradation and Kinetics of Methyl Orange with Bi-Doped TiO2 under Simulated Sunlight
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DOI：
10.4028/www.scientific.net/amr.641-642.229
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发表时间：
2013-01
期刊：
影响因子：
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通讯作者：
C. Rong;Xiaoli Dong;Chun Ma;X. X. Zhang-X.;Fei Shi
中科院分区：
文献类型：
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作者：
C. Rong;Xiaoli Dong;Chun Ma;X. X. Zhang-X.;Fei Shi
采用溶胶-凝胶法制备双掺杂TiO2，并用x射线光电子能谱（XPS）对其进行表征。研究了双掺杂TiO2在氙灯照射下光催化降解甲基橙的动力学。最佳工艺条件为：甲基橙初始浓度为20 mg/L， pH值为3.0，双掺杂TiO2用量为1.0 g/L。在最佳条件下，甲基橙的脱色率为75.1%，动力学常数为0.0113 min-1。
Bi-doped TiO2 was prepared with sol-gel method and was characterized by X-ray photoelectron spectroscopy (XPS). The photocatalytic degradation and kinetics of Methyl orange with Bi-doped TiO2 under xenon lamp irradiation were investigated. The optimum conditions were as follows: the initial concentration of Methyl orange was 20 mg/L, the value of pH was 3.0 and the dosage of Bi-doped TiO2 was 1.0 g/L. Under the optimal conditions, the decolorization rate of Methyl orange was 75.1 % and the kinetic constant was 0.0113 min-1.