Journal
RSC ADVANCES
Volume 7, Issue 4, Pages 2211-2217Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ra24974d
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Funding
- National Natural Science Foundation of China [21576273, 51402320]
- External Cooperation Program of BIC, CAS [174433KYSB2013005]
- Ningbo Science and Technology Innovation Team [2014B81004]
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Nanohybrid graphene oxide (GO)/polyimide (PI) mixed matrix membranes (MMMs) were prepared by dispersing GO into PI through wet phase inversion method. The structure of GO/PI MMMs was characterized by using XRD, FT-IR and XPS. FESEM was used to analyze the morphology of the GO/PI MMMs. The hydrophilicity of the GO/PI MMMs was determined by static water contact angles. The performances of the GO/PI MMMs were evaluated for desalination of seawater through pervaporation. The GO/PI MMMs display excellent water permeability and salt rejection for desalination of different concentrations of seawater. At 90 degrees C, the GO/PI MMMs exhibit a high water flux (36.1 kg m(-2) h(-1)) and a high salt rejection (99.9%). Further, the GO/PI MMM displays a high stability for seawater desalination. This high separation performance combined with high stability and facile fabrication route recommend the developed GO/PI MMMs as a promising candidate for desalination of seawater.
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