Enhanced Photocatalytic Degradation of Bisphenol A in Aqueous Solution by Ag-Doping ZnO

The metal-doping into the photocatalyst was evaluated for the photocatalytic degradation of bisphenol A in aqueous solution with ZnO powder. Au/ZnO, Ag/ZnO and Cu/ZnO were tested in the present work. Ag-doping ZnO was effective for the improvement of efficiency for the photocatalytic degradation of bisphenol A in water. The optimum doping concentration of silver was found to be 3 wt%. The pseudo first-order rate constant with 3 wt% Ag/ZnO was 1.3 times better compared with bare ZnO. The photocatalytic degradation of treatment for the wastewater containing bisphenol A is simple, easy handling and low cost.

Ag/ZnO光催化降解甲基对硫磷研究

描述了掺杂体系Ag／ZnO用于甲基对硫磷水溶液光催化降解，发现有氧存在下、经UV照射对甲基对硫磷光降解是有效的．并讨论了影响光降解甲基对硫磷诸因素。初步探讨了光降解机理和动力学，认为起始降解物为C2H6P＋S和O2NC6H4O－，且是一级反应，半衰期为1．82min。