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In-situ growth of graphene quantum dots modified MoS 2 membrane on tubular ceramic substrate with high permeability for both water and organic solvent

Journal of Membrane Science, ISSN: 0376-7388, Vol: 627, Page: 119247
2021
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Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    17
    • Citation Indexes
      17
  • Captures
    18

Article Description

Molybdenum disulfide (MoS 2 ) is widely used in membrane separation because of its outstanding chemical and structural stability. In this study, MoS 2 nanosheets were in-situ grown on a tubular ceramic substrate through one-step hydrothermal synthesis with the graphene quantum dots (GQDs) incorporated in the precursor solution. The growth of the MoS 2 nanosheets was inhibited due to the combination with GQDs through the Mo-O bond. Therefore, the number of transport channels in the MoS 2 /GQDs composite membrane were increased to improve the permeability. The results indicated that the MoS 2 /GQDs composite membrane have excellent permeances for both the aqueous solution and organic solvent. Moreover, the MoS 2 /GQDs composite membrane can be continuously operated in cross-flow filtration device for 100 h because the in-situ hydrothermal method has greatly improved the stability of membrane. The results indicated that the MoS 2 /GQDs composite membrane exhibits great potential in nanofiltration.

Bibliographic Details

Yue Liu; Zhenping Qin; Xuehong Zhang; Naixin Wang; Tongtong Liu; Suping Cui; Quan-Fu An; Hongxia Guo

Elsevier BV

Biochemistry, Genetics and Molecular Biology; Materials Science; Chemistry; Chemical Engineering

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