摘要
采用微波辅助共沉淀法制备了纳米CeO2/ZnO光催化剂。采用X射线粉末衍射仪、透射电子显微镜、傅里叶变换红外光谱仪以及紫外-可见吸收光谱仪对催化剂样品进行结构表征。以罗丹明B(RhB)为目标降解物对催化剂样品进行光催化降解实验。结果表明:合成的纳米CeO2/ZnO光催化剂由立方相的CeO2及六方相ZnO组成,且CeO2与ZnO较好地复合在一起;该催化剂在紫外区域吸收性能良好。光催化降解RhB实验表明,在质量浓度0.2g/L、pH=8条件下,催化剂光催化性能最佳。
CeO2/ZnO nanocomposite was synthesized by a microwave-assisted coprecipitation method.The nanocomposite was characterized by XRD,TEM,FT-IR and UV-Vis spectra.The photocatalytic degradation was carried out using rhodamine(RhB)as the target degradation product.The results showed that the material synthesized by this method was composed of a cubic phase of CeO2and a six-square phase ZnO,and CeO2 was well combined with ZnO. The catalyst had good absorption in the ultraviolet region.The photocatalytic degradation experiment of RhB showed that the catalyst had a good photocatalytic performance,and its optimal concentration was 0.2g/L,and the optimum pH was 8.
作者
陈子坚
王石语
吴限
Chen Zijian;Wang Shiyu;Wu Xian(School of Physics and Optoelectronic Engineering,Xidian University,Xi'an 710071;New Energy Department,Tianjin Sino-German University of Applied Sciences,Tianjin 300350;College of Chemistry,Chemical Engineering and Environmental Engineering,Liaoning Shihua University,Fushun 113001)
出处
《化工新型材料》
CAS
CSCD
北大核心
2019年第7期190-193,共4页
New Chemical Materials
基金
天津市教委科研计划项目(2017KJ043)
