文献类型：期刊文献

英文题名：Eco-Fabrication of Gradient Porous Membranes with Uniform Carbene-Stabilized Silver Species for Pollutant Integrated Treatment

作者：Miao, Han[1];Yang, Siqing[1];Yao, Yuan[1];Lin, Shaoliang[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Key Lab Ultrafine Mat,Minist Educ, Shanghai 200237, Peoples R China

年份：2024

卷号：6

期号：16

起止页码：9715

外文期刊名：ACS APPLIED POLYMER MATERIALS

收录：;EI(收录号：20243216832862);WOS:【SCI-EXPANDED(收录号:WOS:001282979400001)】；

基金：This work was financially supported by the National Natural Science Foundation of China (52325308, 52203258, and 52073092) and the Shanghai Pujiang Program (21PJ1402100).

语种：英文

外文关键词：cellulose biomass; biobased graft copolymer; poly(ionic liquid); membrane fabrication; pollutanttreatment; environmental sustainability

摘要：Comprehensive industrial pollutant treatment strategies have attracted much attention due to widespread pollutants, such as volatile organic compounds, polycyclic aromatic hydrocarbons, pesticides, and dyes. In this study, we present a facile method to fabricate gradient porous membranes from eco-friendly cellulose biomass and poly(ionic liquid) (PIL), incorporating uniformly embedded carbene-stabilized silver nanoparticles, for effective detection, enrichment, and catalytic degradation of pollutants. By controlling cellulose modification, the pore size and distribution can be regulated. The membrane exhibits curvature upon detection of organic vapors, serving as a VOC sensor and enabling prompt pollution source visual identification. Utilizing silver oxide (Ag2O) as both a silver source and a base, we achieved Ag-NHC (Ag-N-heterocyclic carbene) complexes and Ag nanoparticles uniformly distributed throughout the membrane. The size of these Ag nanoparticles can be conveniently controlled by adjusting the ratios of Ag2O and PIL. These porous membranes demonstrate versatility and robust catalytic degradation activity with representative toxic wastes and dyes. Their recyclability and catalytic efficacy underscore their potential for sustainable pollution management, emphasizing the importance of integrated toolboxes for comprehensive pollutant detection and treatment.