화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.30, 342-352, October, 2015
DOI10.1016/j.jiec.2015.06.004  Export Citation
Fabrication and characterization of anti-fouling and anti-bacterial Ag-loaded graphene oxide/polyethersulfone mixed matrix membrane
Vahid Vatanpour1, 2, †, Abbas Shockravi1, 3, †, Hamed Zarrabi1, 3, Zahra Nikjavan2, and Ali Javadi4
  • 1Faculty of Chemistry, Kharazmi University, 15719-14911 Tehran, Iran
  • 2Novel Technology Research Group, Petrochemical Research and Technology Company, 14977-13115 Tehran, Iran
  • 3, Iran
  • 4Department of Polymer Engineering, The University of Akron, 250 S. Forge St., Akron, OH 44325-0301, USA
E-mail:,
Partially reduced graphene oxide/Ag nanocomposite (rGO/Ag) was fabricated via a green and facile method, from graphite oxide, AgNO3 as a precursor of Ag0, and sodium citrate as a reducing and stabilizing agent. The synthesized rGO/Ag nanocomposite was characterized by X-ray diffraction, Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy techniques (SEM). The influence of rGO/Ag nanocomposite as a new nanofiller on the preparation of polyethersulfone (PES) mixed matrix membranes was evaluated in the cases of permeation performance, hydrophilicity, antifouling and anti-bacterial properties. Water flux of the mixed matrix membranes was increased up to 0.2 wt% rGO/Ag, reaching to 429.8 (kg/m2 h), and then reduced. The anti-bacterial activities of rGO/Ag mixed matrix membranes were investigated using Gram-negative bacteria of Escherichia coli and Pseudomonas aeruginosa, and Gram-positive bacteria of Staphylococcus aureus. The amount of Ag0 in the surface of GO sheets was about 34.24 wt%. Addition of rGO/Ag nanosheets induced anti-bacterial properties to the membranes, leading to the increase in the zone of inhibition. The flux recovery ratio (FRR) study of the membranes using bovine serum albumin (BSA) solution revealed that 0.2 wt% rGO/Ag membrane had the best fouling resistance with the FRR value of 67.2%.
Keywords:rGO/Ag nanocomposite;Mixed matrix membrane;Fouling resistance ratio;Anti-bacterial
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