Ce^(3+)掺杂TiO_2光催化性能研究

Study on Photocatalytic Property of Ce^(3+) Doped TiO_2 Powder

采用溶胶-凝胶法制备了Ce3+/TiO2光催化剂,研究了该催化剂对亚甲基蓝的光催化降解效果。结果表明掺杂量w(Ce3+)3.7%,催化剂用量0.12 g.L-1,体系pH值为10,12 mg.L-1亚甲基蓝溶液经2 h光催化降解,其降解率可达98.87%,与纯TiO2相比,Ce3+/TiO2光催化剂显示出良好的光催化活性。

Ce^3＋/TiO2 photocatalyst was prepared by sol-gel method. The photocatalytic degradation of MB was studied. The results showed that Ce^3＋ doped TiO2 exhibited greater photocatalytic activity than pure TiO2. When the optimum doping of Ce^3＋ was 3.7%, the optimum dosage of catalyst was 0.12 g·L^-1, pH 10,the photocatalytic degradation of MB could reach 98.87 %.