摘要
采用微波辅助合成方法将WO_(3)固载到金属有机骨架MIL-101(Cr)上,借助于沉积沉淀–光还原方法将Ag/AgCl和WO_(3)/MIL-101复合在一起,制备出Ag/AgCl@WO_(3)/MIL-101可见光催化剂。利用FT-IR、XRD、UV-Vis-DRS和XPS测试技术对该催化剂进行了表征。结果表明,Ag/AgCl和WO_(3)的引入没有改变MIL-101的结构,催化剂在可见光区有强烈的光吸收。当WO_(3)的负载量为0.3(w)%,Ag的负载量为3.4(w)%时,Ag/AgCl@WO_(3)/MIL-101对70 mL 20 mg/L的罗丹明B溶液的降解率达到100%,并且该催化剂具有较好的稳定性。
Tungsten oxide(WO_(3))was supported on MIL-101(Cr),affording a hybrid material WO_(3)/MIL-101 by a microwave-assisted deposition method.Then,the plasmonic Ag/AgCl@WO_(3)/MIL-101 catalyst was prepared by the deposition-precipitation-photoreduction method and characterized by FT-IR,XRD,UV-Vis-DRS and XPS techniques.It was found that the structure of MIL-101 was well preserved after the introduction of WO_(3) and Ag/AgCl,which showed strong light absorption in the visible region.When the loadings of WO_(3) and Ag was 0.3(w)%and 3.4(w)%,Ag/AgCl@WO_(3)/MIL-101 exhibited a high photocatalytic activity and good stability for the degradation of RhB under visible light irradiation.
出处
《物理化学进展》
2020年第2期13-22,共10页
Journal of Advances in Physical Chemistry
