中文版 | English
Title

Ultra-hydrophilic layered titanate nanosheet-based nanofiltration membrane with ultrafast water transport for low energy consumption desalination

Author
Corresponding AuthorFeng,Qi
Publication Years
2022-12-15
DOI
Source Title
ISSN
0011-9164
EISSN
1873-4464
Volume544
Abstract
Nanofiltration (NF) membranes have significant applications to solve global water scarcity issues. An ultra-hydrophilic inorganic NF membrane was fabricated using ultra-hydrophilic layered titanate HTiO·nHO nanosheets (HTO-ns), which exhibits high selectivity for desalination and small molecule separations while maintained an ultrafast water transport at low operating pressure. This membrane would be a low-energy consumption NF membrane. To fabricate the HTO-ns membrane, a straightforward technique, namely, the self-adjusting membrane thickness process (SAMTP), was developed by the restacking process of negatively charged HTO-ns with cations on a porous polytetrafluoroethylene (PTFE) substrate. A large-scaled high-quality HTO-ns membrane can be fabricated on a PTFE substrate surface-modified with a silane coupling agent of N-(2-aminoethyl)-3-aminopropyltrimethoxysilane and Cu adsorption. There are two kinds of nanochannels for water transport through the membrane, namely, interlayer nanochannels and nanosheet edges chink nanochannels. The excellent separation performances were contributed by the interlayer nanochannels and Donnan exclusion effect of the negatively charged HTO-ns. The SAMTP technique developed in this study could also be applied simply to fabricate other metal oxide nanosheet membranes, which would open a new avenue to the high-performance ultra-hydrophilic inorganic nanosheet-based membranes for low energy consumption separation processes.
Keywords
URL[Source Record]
Indexed By
Language
English
SUSTech Authorship
Others
Funding Project
Japan Society for the Promotion of Science[21K04832];
WOS Research Area
Engineering ; Water Resources
WOS Subject
Engineering, Chemical ; Water Resources
WOS Accession No
WOS:000877589600004
Publisher
ESI Research Field
CHEMISTRY
Scopus EID
2-s2.0-85139369048
Data Source
Scopus
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/406155
DepartmentDepartment of Materials Science and Engineering
Affiliation
1.Department of Advanced Materials Science,Faculty of Engineering and Design,Kagawa University,Takamatsu-shi,2217-20 Hayashi-cho,761-0396,Japan
2.Institute for Solid State Physics,The University of Tokyo,Sayo,Hyogo,679-5148,Japan
3.College of Chemistry and Chemical Engineering,Baoji University of Arts and Sciences,Baoji,1-Hi-Tech Avenue, Shaanxi,721013,China
4.Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,Nanshan, 1088 Xueyuan Avenue, Guangdong,518055,China
5.School of Materials Science and Engineering,Shaanxi University of Science and Technology,Xi'an,Weiyang, Shaanxi,710021,China
Recommended Citation
GB/T 7714
Yao,Fangyi,Zhang,Wenxiong,Hu,Dengwei,et al. Ultra-hydrophilic layered titanate nanosheet-based nanofiltration membrane with ultrafast water transport for low energy consumption desalination[J]. DESALINATION,2022,544.
APA
Yao,Fangyi.,Zhang,Wenxiong.,Hu,Dengwei.,Li,Sen.,Kong,Xingang.,...&Feng,Qi.(2022).Ultra-hydrophilic layered titanate nanosheet-based nanofiltration membrane with ultrafast water transport for low energy consumption desalination.DESALINATION,544.
MLA
Yao,Fangyi,et al."Ultra-hydrophilic layered titanate nanosheet-based nanofiltration membrane with ultrafast water transport for low energy consumption desalination".DESALINATION 544(2022).
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