【摘要】 采用环形聚焦单模微波辅助法(简称微波法)快速合成银镁共掺氧化锌复合光催化剂(简称复合光催化剂),并运用X射线衍射、扫描电子显微镜对其结构和形貌进行表征。将此复合光催化剂应用于光催化降解罗丹明B和含油污水,研究其光催化性能并探究光催化降解机理。结果表明:微波法合成的复合光催化剂具有良好的光催化性能,对含油污水的降解率优于商用二氧化钛;复合光催化剂重复使用4次后罗丹明B的降解率仍维持在92%以上,化学稳定性良好。更多还原

【Abstract】 A ring-focusing single-mode microwave synthesis method was used to rapidly synthesize a composite photocatalyst of silver-magnesium co-doped ZnO. XRD and SEM were used to characterize the structure and morphology of the synthesized photocatalyst. The photocatalytic degradation of Rhodamine B and oily wastewater by the photocatalyst was investigated. The performance and the mechanism of the reactions were explored. The results showed that the composite photocatalyst synthesized by microwave method had a good photocatalytic performance,and the degradation rate for oily wastewater was better than that of commercial titanium dioxide. After four cycles,the degradation rate of Rhodamine B was still above 92%,indicating that its chemical stability was good.更多还原