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Ferric ions mediated defects narrowing of graphene oxide nanofiltration membrane for robust removal of organic micropollutants
Li, Sushuang; Wan, Yinhua; Guo, Shiwei; Luo, Jianquan
2021-05-01
Source PublicationCHEMICAL ENGINEERING JOURNAL
ISSN1385-8947
Volume411Pages:11
AbstractRemoval of organic micropollutants (OMPs) in the wastewater treatment is greatly important due to their adverse effects on human health and ecosystem. In this work, we provide a new perspective to prepare graphene oxide (GO) nanofiltration (NF) membrane with narrow pore size distribution for robust removal of OMPs. Ferric ions (Fe3+) mediated GO nanosheets are firstly used to prepare GO membrane, then the membrane surface is modified by a targeted coating layer consisting of tannic acid-aminopropyltriethoxysilane (TA-APTES) via their strong affinity to Fe3+, where the larger membrane defects with more Fe3+ would be patched by thicker TAAPTES. Such "speckled" TA-APTES coating can simultaneously enhance antifouling ability and regulate nano channels of the GO membrane. The resulted GO membrane shows high and steady rejections on various OMPs, even in the long-term operation, cross-flow filtration or under high-pressure. This work proposes an innovative idea for constructing hydrophilic surface and narrow pore size distribution of NF membrane.
KeywordGraphene oxide Membrane Surface modification Micropollutant Defect narrowing Water treatment
DOI10.1016/j.cej.2021.128587
Language英语
Funding ProjectMajor Science and Technology Program for Water Pollution Control and Treatment[2017ZX07402001-004] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2017069]
WOS Research AreaEngineering
WOS SubjectEngineering, Environmental ; Engineering, Chemical
Funding OrganizationMajor Science and Technology Program for Water Pollution Control and Treatment ; Youth Innovation Promotion Association of Chinese Academy of Sciences
WOS IDWOS:000624501000004
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/47920
Collection中国科学院过程工程研究所
Corresponding AuthorLuo, Jianquan
AffiliationUniv Chinese Acad Sci, Inst Proc Engn, Chinese Acad Sci, State Key Lab Biochem Engn,Sch Chem Engn, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Sushuang,Wan, Yinhua,Guo, Shiwei,et al. Ferric ions mediated defects narrowing of graphene oxide nanofiltration membrane for robust removal of organic micropollutants[J]. CHEMICAL ENGINEERING JOURNAL,2021,411:11.
APA Li, Sushuang,Wan, Yinhua,Guo, Shiwei,&Luo, Jianquan.(2021).Ferric ions mediated defects narrowing of graphene oxide nanofiltration membrane for robust removal of organic micropollutants.CHEMICAL ENGINEERING JOURNAL,411,11.
MLA Li, Sushuang,et al."Ferric ions mediated defects narrowing of graphene oxide nanofiltration membrane for robust removal of organic micropollutants".CHEMICAL ENGINEERING JOURNAL 411(2021):11.
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