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Author:

Guo, Hongxia (Guo, Hongxia.) (Scholars:郭红霞) | Ma, Yiwen (Ma, Yiwen.) | Sun, Pengzhi (Sun, Pengzhi.) | Cui, Suping (Cui, Suping.) (Scholars:崔素萍) | Qin, Zhenping (Qin, Zhenping.) | Liang, Yucang (Liang, Yucang.)

Indexed by:

EI Scopus SCIE

Abstract:

Superhydrophilic poly(ethyleneimine)/poly(sodium-4-styrenesulfonate) (PEI/PSS)-calcium silicate hydrate (CSH) multilayered membranes (PEI/PSS)(2.0)(PEI/PSS-CSH)(n) on polyacrylonitrile (PAN) substrate were prepared via layer-by-layer (LbL) assembly with in situ precipitation of consecutive Ca2+-integrated multilayered polyelectrolytes and sodium silicate. The surface structure and properties of these multilayered membranes (PEI/PSS)(2.0)(PEI/PSS-CSH)(n) were characterized by zeta potential, infrared resonance spectra, water contact angles, scanning electron microscopy, and atomic force microscopy, and the separation performances were evaluated by rejection of dyes, such as xylenol orange (XO) and rhodamine B (RB). The long term performance, self-cleaning and antifouling behaviors were investigated by retention of aqueous solutions of both dyes and bovine serum albumin (BSA) aqueous solution. The results indicated that the in situ incorporation of controlled CSH contents into PEI/PSS multilayers greatly improved the hydrophilicity of the multilayered membranes, resulting in the formation of a superhydrophilic (PEI/PSS-CSH)(2.0) membrane with a water contact angle of 2.1 degrees and the highest permeate fluxes of 191.5 and 183.5 L m(-2) h(-1) MPa-1 accompanied by the rejection of 94.0% and 91.2% for XO and RB aqueous solutions, respectively. When the number of assembled (PEI/PSS-CSH)(n) multilayers was higher than 2.0 bilayers, the rejection increased but the flux markedly decreased to XO and RB dyes, showing a characteristic trade-off phenomenon. Moreover, the superhydrophilic (PEI/PSS-CSH)(2.0) membrane possessed a higher antifouling and self-cleaning behavior than the hydrophilic polyelectrolytes (PEI/PSS)(2.0).

Keyword:

Author Community:

  • [ 1 ] [Guo, Hongxia]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Ma, Yiwen]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Sun, Pengzhi]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Cui, Suping]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 5 ] [Qin, Zhenping]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 6 ] [Liang, Yucang]Univ Tubingen, Inst Anorgan Chem, D-72076 Tubingen, Germany

Reprint Author's Address:

  • 郭红霞

    [Guo, Hongxia]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China

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RSC ADVANCES

ISSN: 2046-2069

Year: 2015

Issue: 78

Volume: 5

Page: 63429-63438

3 . 9 0 0

JCR@2022

ESI Discipline: CHEMISTRY;

ESI HC Threshold:253

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count: 42

SCOPUS Cited Count: 44

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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