Cu2O-QDs/GO复合物的制备及其光催化性能研究
Preparation of Cu2O-QDs/GO Composite and Its Photocatalytic Properties
荣子佳 1戈丹 1王颖 1于光辉1
作者信息
- 1. 东北师范大学环境学院,吉林长春 130117
- 折叠
摘要
[目的]制备复合光催化剂Cu2O-QDs/GO,考察复合物中氧化石黑烯(GO)的最佳负载量及其光催化性能.[方法]采用改良的Hummer法制备GO,利用化学沉淀法将Cu2O-QDs负载在GO片层上.采用XRD、DRS及TEM表征方法,对催化剂的形貌、组成、性质进行判定.[结果]GO经超声后成片层状,Cu2O以颗粒形式负载于GO表面,粒径为10 nm左右,属于量子点级别.GO的最佳负载量为7%.[结论]通过光催化降解罗丹明B(RhB)的试验,证实复合催化剂对RhB的降解效率相比于单一Cu2O-QDs有明显提高.
Abstract
[Objective]To preparea composite photocatalyst of Cu2O-QDs/GO and investigate the optimal loading amount of GO and its photocatalytic activity.[Method]The modified Hummer method and a chemical deposition process were used to prepare GO and the Cu2O-QDs/GO composite.The morphology,composition and properties of the photocatalysts were characterized by TEM,XRD and DRS.[Result]The results showed that the prepared GO was in the form of monolayer,and the Cu2O was loaded on the GO surface with a particle size of about 10 nm.The best loading content of GO was 7%.[Conclusion] As compared with the single photocatalyst of Cu2O-QDs,the photocatalytic activity of the composite for the degradation of RhB was enhanced significantly.
关键词
氧化亚铜量子点/光催化/氧化石墨/罗丹明BKey words
Cu2O-QDs/Photocatalysis/GO/RhB引用本文复制引用
出版年
2017
国家科技期刊平台
NSTL
万方数据