金属负载型SiO_(2)膜的改性与性能研究  

Study on Modification and Properties of Metal Supported SiO_(2) Film

作　　者：刘聪 高楠 LIU Cong;GAO Nan(School of Civil Engineering,Yulin University,Yulin Shanxi 719000,China;Shaanxi Nonferrous Yulin New Material Co,Ltd.,Yulin Shaanxi 719099,China)

机构地区：[1]榆林学院建筑工程学院,陕西榆林719002 [2]陕西有色榆林新材料集团有限责任公司,陕西榆林719099

出　　处：《当代化工》2022年第7期1624-1628,共5页Contemporary Chemical Industry

基　　金：国家自然科学基金青年科学基金资助项目(项目编号:41701019);榆林市高新区产学研项目(项目编号:CXY-2021-13)。

摘　　要：采用溶胶-凝胶法制备憎水性二氧化硅溶胶,在此基础上分别采用氯化钯和银进行憎水性二氧化硅溶胶修饰,测定不同pH值中Ag-SiO_(2)膜耐酸碱性,以及对经氯化钯涂膜后的膜片进行气体分离试验。结果表明:Ag修饰的SiO_(2)膜耐酸碱性能得到了提升,扩大了膜耐酸碱性的范围,且从不同银量修饰的Ag-SiO_(2)膜相比,0.05Ag-SiO_(2)膜耐酸碱性程度较强,少量的氯化钯就能提高二氧化硅溶胶的气体分离性。Hydrophobic silica sol was prepared by sol-gel method,and it was modified with palladium chloride and silver chloride respectively,the acid and alkali resistance of Ag-SiO_(2)film in different pH values was measured, and the gas separation test of palladium chloride coated film was carried out. The results showed that the Ag-modified SiO_(2)film improved acid and alkaline resistance and expanded the range of acid and alkaline resistance. Compared with the Ag-SiO_(2)film modified with different amount of silver, the acid and alkaline resistance of 0.05Ag-SiO_(2)film was stronger. Adding small amount of palladium chloride improved the gas separation of silica sol.

关 键 词：溶胶-凝胶法 二氧化硅溶胶 耐酸碱性 气体分离 

分 类 号：X703.1[环境科学与工程—环境工程] X131.2