Journal
DESALINATION
Volume 492, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.desal.2020.114601
Keywords
Reverse osmosis; Thin film nanocomposite; MIL-101(Cr)@GO particle; Permeability
Categories
Funding
- National Natural Science Foundation of China [21776147, 21606140, 61604086, 21905153, 51472174]
- International Science & Technology Cooperation Program of China [2014DFA60150]
- Department of Science and Technology of Shandong Province [ZR2018BB066, 2016GGX104010]
- Qingdao Municipal Science and Technology Bureau [19-6-1-91-nsh]
- Postdoc Applied Research Project Funding of Qingdao
- Department of Education of Shandong Province [J16LA14, J17KA013]
- Malmstrom Endowment Fund at Hamline University
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Facile reverse osmosis membranes with different doping concentrations of metal organic framework MIL-101(Cr)@graphene oxide (GO) were synthesized for desalination by interfacial polymerization, and the MIL-101(Cr) polyhedral particles were encapsulated with GO nanosheets. Contact angles of thin film nanocomposite membranes decrease with the increased concentration of MIL-101(Cr)@GO, suggesting improved surface hydrophilicity. And desirable doping can enhance both water flux and NaCl rejection. For example, with a doping concentration of 0.01%, water flux of the membranes can be increased from 20.49 L/m(2) .h. to 37.95 L/m(2) .h. by 85.21% along with slightly improved NaCl rejection. Our findings indicate that MIL-101(Cr)@GO composite particles can be developed as an effective additive material to fabricate thin film nanocomposite reverse osmosis membranes for desalination applications.
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