文献类型：期刊文献

英文题名：High efficiency and selective separation of oily wastewater based on superamphiphilic biomass aerogel: Characteristics, mechanisms and application

作者：Wang, Bingjie[1];Wang, Yuxin[1];Tian, Tao[1];Bai, Zhishan[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, State Environm Protect Key Lab Environm Risk Asses, Shanghai 200237, Peoples R China

年份：2023

卷号：11

期号：6

外文期刊名：JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING

收录：;EI(收录号：20230317330);WOS:【SCI-EXPANDED(收录号:WOS:001114653000001)】；

基金：This work was supported by National Key Research and Develop-ment Program of China (2022YFC3004504) , National Natural Science Foundation of China (22108082) , Shanghai Sailing Program (20YF1409800) and China Postdoctoral Science Foundation (2019TQ0094) .

语种：英文

外文关键词：Oily wastewater treatment; Multifunctional bio-aerogel; Adjustable superwettability; Oil-water mixture separation; Dyes synergistic removal

摘要：The design and development of multifunctional materials to meet the sophisticated requirements of oily wastewater treatment is an urgent need and remains a great challenge. Herein, a superamphiphilic bio-aerogel (PTGA) with honeycomb-like porous structure was synthesized. The directional and reversible control of interfacial wettability can be achieved by simple pre-wetting process and solvent replacement method. Combined with the advantages of structure and wettability, PTGA was proved to be ideal for high-efficient oil-water mixture separation (J> 1500 L/m(2)h, eta > 99.8%), oils absorption (C-abs = 17-26 g/g) and dye selective removal (MO: 73.552 mg/g, MB: 45.876 mg/g). Furthermore, based on the newly developed dynamic separation device and excellent mechanical property of PTGA, enhanced separation of oil-water mixture (J = 3007 L/m(2)h) and synergistic removal of co-existing pollutants (MB: 51.274 mg/g) were realized. Mechanism results indicated that the transition of interfacial wetting properties of PTGA was a multi-stage process, while oil/water separation and dye adsorption were two independent processes. Benefit from facile synthesis and unparalleled characteristics, the designed PTGA promise to be reliable and competitive candidates in wastewater remediation.