Easily-manufactured paper-based materials with high porosity for adsorption/separation applications in complex wastewater

作     者：Shan Jiang Jianfeng Xi Hongqi Dai Huining Xiao Weibing Wu Shan Jiang;Jianfeng Xi;Hongqi Dai;Huining Xiao;Weibing Wu

作者机构：Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest ResourcesInternational Innovation Center for Forest Chemicals and MaterialsNanjing Forestry UniversityNanjing 210037China Department of Chemical EngineeringUniversity of New BrunswickFredericton E3B 5A3Canada 

出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)

年 卷 期：2023年第17卷第7期

页      面：830-839页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0817[工学-化学工程与技术] 08[工学] 0703[理学-化学] 

基　　金：The support of this work by the National Key Research and Development Program of China(Grant No.2019YFC19059003) the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)is gratefully acknowledged 

主　　题：adsorption oil-water separation underwater superoleophobicity wastewater treatment 

摘      要：A multi-functional porous paper-based material was prepared from grass pulp by simple pore-forming and green cross-linking *** a pore-forming agent,calcium citrate increased the porosity of the paper-based material from 30%to 69%while retaining the mechanical *** covalent cross-linking of citric acid between cellulose fibers improved both the wet strength and adsorption *** addition,owing to the introduction of high-content carboxyl groups as well as the construction of hierarchical micro-nano structure,the underwater oil contact angle was up to 165°.The separation efficiency of the emulsified oil was 99.3%,and the water flux was up to 2020 L·m^(–2)·h^(–1).The theoretical maximum adsorption capacities of cadmium ion,lead ion and methylene blue reached 136,229 and 128.9 mg·g^(–1),*** continuous purification of complex wastewater can be achieved by using paper-based materials combined with filtration *** work provides a simple,low cost and environmental approach for the treatment of complex wastewater containing insoluble oil,organic dyes,and heavy metal ions.