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Ag10Si4O13光催化涂料的制备及其去除NO性能研究
作者：陈思佳1，Eyobel Mulugetaa2，姚恒山1，崔恩田3，张勤芳3，代少俊3，侯贵华3
（1.江苏大学 材料科学与工程学院，江苏 镇江 212013；2.Ethiopian Biotechnology Institute，Emerging Technology Center，
Nanotechnology Directorate，Energy and Environment Research Team，Addis Ababa，Ethiopian；
3.盐城工学院 江苏省环保重点实验室，江苏 盐城 224051）
摘要：以硝酸银为原料，无水乙醇为溶剂，硅溶胶为络合剂，通过溶胶凝胶法获得前驱体，将前驱体置于管式炉中煅烧，制备出Ag10Si4O13光催化剂。以硅溶胶/硅酸钾溶液与氟碳乳液为基料制备Ag10Si4O13光催化涂料。通过XRD、SEM、UV-Vis DRS等手段对催化剂进行了表征，并测试了涂料的性能及涂料去除NO的效果。结果表明：Ag10Si4O13呈柱状结构；光吸收边为640 nm，对应禁带宽度2.02 eV。光催化测试结果表明，在氙灯照射90 min时，Ag10Si4O13掺量为涂料质量的1.0%时对NO的去除率为68.8%。
关键词：Ag10Si4O13；光催化剂；光催化涂料；NO降解
中图分类号：TU56+1.62 文献标识码：A 文章编号：1001-702X（2019）01-0089-04
Study on synthesis of the Ag10Si4O13 photocatalytic coatings and its performance of NO degradation
CHEN Sijia1，Eyobel Mulugetaa2，YAO Hengshan1，CUI Entian3，ZHANG Qinfang3，DAI Shaojun3，HOU Guihua3
（1.College of Materials Science and Engineering，Jiangsu University，Zhenjiang 212013，China；
2.Ethiopian Biotechnology Institute，Emerging Technology Center，Nanotechnology Directorate，Energy and
Environment Research Team，Addis Ababa，Ethiopian；3.Key Laboratory for Advanced Technology in
Environmental Protection of Jiangsu Province，Yancheng Institute of Technology，Yancheng 224051，China）
Abstract：Ag10Si4O13 photocatalyst was prepared by using silver nitrate as raw material，anhydrous ethanol as solvent and silica sol as complexing agent. The precursor was obtained by sol-gel method. The precursor was calcined in a tube furnace. Preparation of Ag10Si4O13 photocatalytic coating based on silica sol/potassium silicate solution and fluorocarbon emulsion. The catalyst was characterized by XRD，SEM，UV-Vis DRS，and other means，and the performance of the coating and the effect of NO removal by the coating were tested. The results show that the morphology of Ag10Si4O13 is a columnar structure; the light absorption edge is 640 nm，corresponding to the band gap of 2.02 eV. The photocatalytic test results showed that the removal rate of NO was 68.8% for the Ag10Si4O13 photocatalytic coating with a mass content of 1.0% when the xenon lamp was irradiated for 90 min.
Key words：Ag10Si4O13，photocatalyst，photocatalytic coating，NO degradation