人工晶体学报2024，Vol.53Issue(6)：1042-1050,9.
氧化亚铜改性四针状氧化锌晶须表面及其光催化性能研究
Surface Modification of Tetrapod-Like ZnO Whisker by Cuprous Oxide and Its Photocatalytic Properties
摘要
Abstract
Cu2O/T-ZnOw composite catalysts were prepared by a simple liquid-phase reduction method,in which ethylene glycol(EG)as reducing agent and polyvinyl pyrrolidone(PVP)as surfactant.The phase,morphology,band gap,photoluminescence properties,photodegradation,and recyclable performance of samples were studied in detail.The result shows that PVP plays an important role in the morphology of Cu2O.It makes Cu2O crystals deposited on the surface of tetrapod-like ZnO whiskers(T-ZnOw)gradually transformed from cubic to sphericity.When Cu2O crystals deposited on T-ZnOw surface,the band gap(Eg)of semiconductor catalysts were narrowed,and the recombination of photogenerated electron and hole pairs were effectively reduced,which can significantly improve the photocatalytic activity of semiconductor.The degradation efficiency of methyl orange(MO)solution by composite catalysts is increased to more than 90％after 100 min UV irradiation.At the same condition,the cubic-Cu2O/T-ZnOw composite shows higher photocatalytic activity than spherical-Cu2O/T-ZnOw.After six recycles of photocatalytic degradation tests,the degradation rate of samples prepared by 0.06 g PVP can still be maintained more than 80％,which shows that the Cu2O/T-ZnOw composites have good recyclable performance.关键词
Cu2O/T-ZnOw/表面沉积/PVP/甲基橙/光催化性能/降解率/可回收利用性能Key words
Cu2O/T-ZnOw/surface deposition/PVP/methyl orange/photocatalytic performance/degradation rate/recyclable performance分类
化学化工引用本文复制引用
刘红,刘花蓉,范希梅..氧化亚铜改性四针状氧化锌晶须表面及其光催化性能研究[J].人工晶体学报,2024,53(6):1042-1050,9.基金项目
德阳市社会发展领域重点研发指导类项目(2023SZZ143) （2023SZZ143）
四川建筑职业技术学院院级项目(2022KJ19) （2022KJ19）
四川建筑职业技术学院科研创新团队(SCJYKYCXTD2022) （SCJYKYCXTD2022）
