Wuhan University of Science and Technology, School of Urban Construction, Wuhan, 430065, China.
Environ Sci Pollut Res Int. 2020 Apr;27(12):13590-13598. doi: 10.1007/s11356-020-07960-9. Epub 2020 Feb 6.
At first, naked TiO was prepared by sol-gel method. Silver nitrate and thiourea were respectively used as silver source and sulfur source added to form a TiO sol and AgS polymer blend system. Then, the properties of AgS-TiO was one-step synthesized and investigated by photocatalytic experiment and material characterization. According to the characterization results, AgS-TiO is anatase with a band gap of 3.14 eV, a specific surface area of 39.80 m/g, and an average pore diameter of 3.56 nm. The results of photocatalytic experiments show that AgS-TiO can efficiently remove ethyl paraben within 2 h. Quenching experiments show that both •OH and photogenerated holes have a large effect on photocatalytic performance.
首先，通过溶胶-凝胶法制备了裸露的 TiO。分别使用硝酸银和硫脲作为银源和硫源，形成 TiO 溶胶和 AgS 聚合物共混体系。然后，通过光催化实验和材料表征一步合成并研究了 AgS-TiO 的性能。根据表征结果，AgS-TiO 是锐钛矿相，带隙为 3.14 eV，比表面积为 39.80 m/g，平均孔径为 3.56 nm。光催化实验结果表明，AgS-TiO 可以在 2 h 内有效去除对羟基苯甲酸乙酯。猝灭实验表明，•OH 和光生空穴对光催化性能都有很大的影响。
