文献类型：期刊文献

英文题名：pH-Responsive Sponges Fabricated by Ag-S Ligands Possess Smart Double-Transformed Superhydrophilic-Superhydrophobic-Superhydrophilic Wettability for Oil-Water Separation

作者：Guo, Jiahong[1];Wang, Jikui[1,2];Gao, Yihan[1];Wang, Jie[1];Chang, Wenbo[1];Liao, Siyuan[1];Qian, ZiMing[2];Liu, YaXin[2]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Polymer Proc Lab,Key Lab Preparat & Applicat Ultr, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Jiangsu Hengtong Power Cable Co LTD, Suzhou 215200, Jiangsu, Peoples R China

年份：2017

卷号：5

期号：11

起止页码：10772

外文期刊名：ACS SUSTAINABLE CHEMISTRY & ENGINEERING

收录：;EI(收录号：20174604394967);WOS:【SCI-EXPANDED(收录号:WOS:000414825900137)】；

基金：The authors sincerely acknowledge Scientific and Technological Achievements Transformation Program of Jiangsu Province (SBA2014010034) and Ningbo Industrial Major Projects (201601ZD-A01026).

语种：英文

外文关键词：pH-responsive; Sponge; Double transformed; Thiol modification; Oil-water separation

摘要：Advanced applications of surfaces with smart wettability offer great perspectives to design novel materials. pH-responsive smart sponges with double transformation are fabricated via in situ decoration of Ag nanoparticles through an oxidation-reduction reaction and followed by modification with a mixed thiol-ethanol solution containing HS-(CH2)(11)CH3, HS(CH2)(10)COOH, and HS(CH2)(11)OH. The wettability of sponges with optimal thiol proportions can switch reversibly between superhydrophilicity-superhydrophobicity-superhydrophilicity under different pH conditions. In addition, the as-prepared sponges have excellent absorption capacity and high oil-water separation efficiency (99.1%). This report provides a simple approach to prepare smart sponges with switchable wettability which can be further applied to many practical applications, such as marine purification and an oil-water on-off switch.