有机累托石负载Ag等离子体插层材料对苯酚的去除  

Removal of Phenol by Organic Rectorite Loaded Ag Plasma Intercalated Material

作　　者：杨连利[1] 汪银涛 王嘉彤 李心乐 史文雅 YANG Lianli;WANG Yintao;WANG Jiatong;LI Xinle;SHIWenya(School of Chemistry and Chemical Engineering,Xianyang Normal University,Xianyang 712000,Shaanxi,China)

机构地区：[1]咸阳师范学院化学与化工学院,陕西咸阳712000

出　　处：《咸阳师范学院学报》2020年第2期35-39,共5页Journal of Xianyang Normal University

基　　金：国家自然科学基金项目(50573046);陕西省自然科学基金项目(2014JM2049);咸阳市科技局项目(2018k02-21);咸阳师范学院科研项目(XSYHGKZ1709);咸阳师范学院大学生创新创业训练计划项目(2017062,S201910722062)。

摘　　要：采用沉积/光还原法获得有机累托石负载Ag等离子体插层材料(Ag@AgCl-OREC)。以XRD、SEM、TEM及UV-vis等分析了该材料的结构、形貌及光吸收性能。以苯酚为污染物模型对该复合材料的吸附富集-定位光催化降解性能进行评价。UV-vis光谱表明所制备复合材料相对于OREC有优异的光吸收性能,其对苯酚展现了良好的吸附-光催化降解性能。采用正交实验法确定了Ag@AgCl-OREC去除苯酚的最佳条件:在pH为6、溶液温度35℃、苯酚浓度为20 mg/L、光催化材料用量为0.4g时,苯酚去除率达94.1%。探讨了光催化降解机理。Organic rectorite loaded Ag plasma intercalated material(Ag@AgCl-OREC) was obtained by deposition and light reduction technique. The structure, morphology and optical absorption properties of the material were analyzed via XRD, SEM, TEM and UV-vis. Phenol was used as a pollutant model to evaluate the adsorption enrichment-localization photocatalytic degradation performance of the composite material. UV-vis absorbance spectra showed that the composite has excellent light absorption property compared with OREC, and it showed good adsorption-photocatalytic degradation to phenol. The optimum conditions for removal of phenol onto Ag@AgCl-OREC were determined by orthogonal tests. The optimum conditions are that solution pH is 6, the adsorption temperature is 35℃, the amount of the composites is 0.4 g and phenol solution concentration is 20 mg/L,and the removel rate of phenol is as high as 94.1%. A discussion was made of the mechanism of photocatalytic degradation.

关 键 词：有机累托石 Ag等子体 苯酚 吸附 光催化降解 

分 类 号：X703.1[环境科学与工程—环境工程]