可见光响应光催化剂Ag/AgCl@NH_2-UiO-66的制备及其光催化性能  

Visible-Light Responsive Photocatalyst Ag/AgCl@NH_2-UiO-66:Preparation and Photocatalytic Performance

作　　者：周欣[1] 冯涛[1] 高书涛[1] 杨亮亮[1] 王梓琛 王娜[1] 刘聪颖[1] 冯成[1] 商宁昭 王春[1] 

机构地区：[1]河北农业大学理学院,保定071001 [2]南开大学化学学院,天津300071

出　　处：《无机化学学报》2016年第5期769-776,共8页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.31471643);河北省自然科学基金(No.B2015204003;B2011204051);河北农业大学理工基金(No.LG201404;ZD201506)资助项目

摘　　要：采用气相扩散-沉积-光还原法制备了可见光响应复合光催化剂Ag/AgCl@NH_2-UiO-66。通过X射线衍射(XRD)、电子扫描显微镜(SEM)、X射线能谱(EDS)、紫外可见漫反射光谱及X射线光电子能谱(XPS)等对催化剂的结构进行了表征。结果表明Ag/AgCl@NH_2-UiO-66具有优良的光催化活性,可见光条件下(λ≥420nm)对20mg·L^(-1)罗丹明的降解效率14min即可达到98%。A novel visible-light responsive photocatalyst, Ag/AgCl@NH2-UiO-66, was synthesized via vapor diffusion-photoreduction strategy. The as-prepared composite was characterized by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, ultraviolet-visible diffuse reflection spectra and X-ray photoelectron spectroscopy. Due to the synergistic effect between Ag/AgCl and NH2-UiO-66, the visible-light responsive photocatalyst exhibited excellent photocatalytic activity. The degradation efficiency of the composite to 20 mg·L^-1 Rhodamine B can be reached to 98% within 14 min under visible-light irradiation （λ ≥420 nm）.

关 键 词：Ag/AgCl 金属有机框架材料 可见光 光催化 降解 

分 类 号：O644.14[理学—物理化学]