化工进展2023，Vol.42Issue(11)：6031-6041,11.DOI:10.16085/j.issn.1000-6613.2022-2332
CuS复合海绵的制备及其在含菌乳液净化处理中的应用
Preparation of CuS composite sponge and its application in purifying emulsion containing bacteria
摘要
Abstract
Recently,superwetting materials are widely used in oil-water emulsion separation,but there are few reports on the simultaneous separation of complex oil-water mixtures containing bacteria.To solve this problem,a comprehensive strategy of one-step O/W separation and efficient sterilization by photothermal conversion was proposed.Using melamine sponge(MS)as the substrate,chitosan(CS),CuS and polyvinylpyrrolidone(PVP)were loaded on MS by a simple two-step soaking method,and the prepared MS@CS-CuS@PVP composite sponge had superhydrophilic/underwater superoleophobic and photothermal antibacterial properties.The chemical structure and micromorphology of the material before and after modification were characterized,and the purification ability of the composite sponge to emulsion containing bacteria was studied.The results showed that the underwater oil contact angle of the composite sponge reaches 155.4o with the addition of CuS nanoparticles,and it had the underwater superoleophobic property.Composite sponge was applied to the separation of oil-in-water emulsion,the separation efficiency was above 98.56% ,and it had good chemical and mechanical stability.The high photothermal conversion performance and photothermal stability can promote the purification of the emulsion containing bacteria under light irradiation,which increased the separation flux by 22% and the sterilization rate by 18.84% .This would provide more inspirations for the separation of complex oil-water mixtures and provide new solutions to potential problems in industrial applications.关键词
硫化铜/复合材料/乳液/分离/光热转换/抗菌Key words
copper sulfide/composites/emulsion/separation/photothermal conversion/antibacterial分类
环境科学引用本文复制引用
肖倩,廖腾飞,丁玲玲,朱张昊,彭冬梅,胡婧,杨浩..CuS复合海绵的制备及其在含菌乳液净化处理中的应用[J].化工进展,2023,42(11):6031-6041,11.基金项目
国家级、省级大学生创新创业训练项目(202110490004,S202110490007) （202110490004,S202110490007）
武汉工程大学大学生校长基金(XZJJ2021103). （XZJJ2021103）
