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Two-dimensional Na-Bentonite@MXene composite membrane with switchable wettability for selective oil/water separation

文献类型：期刊论文

作者Zhang, Liyi1,2; Liu, Yongcong1,2; Zeng, Guangyong1,2,3; Yang, Zhaomei2; Lin, Qingquan2; Wang, Yanyong4; Wang, Xiaoguang4; Pu, Shengyan1
刊名SEPARATION AND PURIFICATION TECHNOLOGY
出版日期2023-02-15
卷号306页码:10
ISSN号1383-5866
关键词Two-dimensional membrane MXene nanosheet Oil water separation Switchable wettability Anti -fouling capacity
DOI10.1016/j.seppur.2022.122677
英文摘要MXene-based two-dimensional (2D) material membranes have attracted an increasing number of attentions in the field of separation and purification. However, the easily oil-pollution of MXene membrane still limit its further application for oil/water separation. In this work, Na-Bentonite was embedded into MXene nanosheets and then a series of Na-Bentonite@MXene (NBM) composite membranes were prepared by one-step hydro -thermal pretreatment and vacuum self-assembly on polyvinylidene fluoride membrane surface. The modified composite membranes exhibited excellent separation performances with a rejection ratio above 96 % and a flux recovery rate (FRR) higher than 86 % after 8 cycling tests for oil/water emulsion. In addition, the sandwich structure consisting of MXene nanosheets and Na-Bentonite could not only play a positive role in the stability of composite membrane, but also formed a special micro-nano structure on membrane surface, resulting in a switchable wettability of composite membrane. When the membrane surface was pretreated with water or oil, it presented hydrophilic/hydrophobic or hydrophobic/oleophilic surfaces, respectively, which realized the effec-tive separation for different components in oil/water emulsion. This work provides a new method for the design and construction of MXene-based 2D membrane with continuous anti-fouling capacity, which shows a great application potential in the treatment of oily wastewater.
资助项目National Natural Science Foundation of China[42077185] ; National Key Research and Development Program of China[2020YFC1808300] ; Sichuan Science and Technology Program for Distinguished Young Scholars[2022JDJQ0010] ; Research Fund of State Key Laboratory of Geohazard Prevention and Geoenvironment Protection[SKLGP2020Z002] ; Research Fund of State Key Laboratory of Geohazard Prevention and Geoenvironment Protection[SKLGP2021Z028]
WOS研究方向Engineering
语种英语
出版者ELSEVIER
WOS记录号WOS:000899388200004
资助机构National Natural Science Foundation of China ; National Key Research and Development Program of China ; Sichuan Science and Technology Program for Distinguished Young Scholars ; Research Fund of State Key Laboratory of Geohazard Prevention and Geoenvironment Protection
源URL[http://ir.ipe.ac.cn/handle/122111/56250]  
专题中国科学院过程工程研究所
通讯作者Zeng, Guangyong; Pu, Shengyan
作者单位1.Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Prot, Chengdu 610059, Sichuan, Peoples R China
2.Chengdu Univ Technol, Coll Mat & Chem & Chem Engn, Chengdu 610059, Sichuan, Peoples R China
3.Univ Chinese Acad Sci, Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
4.Chengdu Univ Technol, State Key Lab Oil & Gas Reservoir Geol & Exploitat, Chengdu 610059, Sichuan, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Liyi,Liu, Yongcong,Zeng, Guangyong,et al. Two-dimensional Na-Bentonite@MXene composite membrane with switchable wettability for selective oil/water separation[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2023,306:10.
APA Zhang, Liyi.,Liu, Yongcong.,Zeng, Guangyong.,Yang, Zhaomei.,Lin, Qingquan.,...&Pu, Shengyan.(2023).Two-dimensional Na-Bentonite@MXene composite membrane with switchable wettability for selective oil/water separation.SEPARATION AND PURIFICATION TECHNOLOGY,306,10.
MLA Zhang, Liyi,et al."Two-dimensional Na-Bentonite@MXene composite membrane with switchable wettability for selective oil/water separation".SEPARATION AND PURIFICATION TECHNOLOGY 306(2023):10.

入库方式： OAI收割

来源：过程工程研究所

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