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作者:

Khurram, Rooha (Khurram, Rooha.) | Javed, Aroosa (Javed, Aroosa.) | Ke, Ruihua (Ke, Ruihua.) | Lena, Cheng (Lena, Cheng.) | Wang, Zhan (Wang, Zhan.) (学者:王湛)

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SCIE

摘要:

Photocatalysis and membrane technology in a single unit is an ideal strategy for the development of wastewater treatment systems. In this work, novel GO (x wt%)/TiO2-CA hybrid membranes have been synthesized via a facile non-solvent induced phase inversion technique. The strategy aimed to address the following dilemmas: (1) Effective utilization of visible light and minimize e(-)/h(+) recombination; (2) Enhanced separation capability and superior anti-fouling and self-cleaning ability. The experimental results reveal that the integration of nano-composite (GO/TiO2) boosts the membrane properties when compared to pristine CA and single photocatalyst employed membrane (GO-CA and TiO2-CA). The effect of GO content on the properties of the photocatalytic membrane has been determined by utilizing three different ratios of GO, viz. 0.5 wt%, 1 wt%, and 2 wt% designated as NC(1)-CA, NC(2)-CA, and NC(3)-CA, respectively. Amongst them, NC(3)-CA membrane showed state-of-the-art performance with an elevated photocatalytic response (four times higher than pristine CA membrane) toward methyl orange. Moreover, the water flux of NC(3)-CA membrane is 613 L/m(2)h, approximately three times higher than bare CA membrane (297 L/m(2)h), while keeping the MO rejection high (96.6%). Besides, fouling experiments presented the lowest total and fouling resistance ratios and a higher flux recovery ratio (91.78%) for the NC(3)-CA membrane, which endows the membrane with higher anti-fouling and self-cleaning properties. Thus, NC(3)-CA membrane outperforms the other as synthesized membranes in terms of separation efficiency, visible light photo-degradation of pollutant, anti-fouling and self-cleaning ability. Therefore, NC(3)-CA membrane is considered as the next generation membrane for exhibiting great potential for the wastewater treatment applications.

关键词:

clean technology and engineering environmental science Graphene oxide (GO) Photocatalytic membranes photo-degradation of MO self-cleaning and anti-fouling ability Titania (TiO2)

作者机构:

  • [ 1 ] [Khurram, Rooha]Beijing Univ Technol, Dept Chem & Chem Engn, Beijing Key Lab Green Catalysis & Separat, Beijing 100124, Peoples R China
  • [ 2 ] [Ke, Ruihua]Beijing Univ Technol, Dept Chem & Chem Engn, Beijing Key Lab Green Catalysis & Separat, Beijing 100124, Peoples R China
  • [ 3 ] [Lena, Cheng]Beijing Univ Technol, Dept Chem & Chem Engn, Beijing Key Lab Green Catalysis & Separat, Beijing 100124, Peoples R China
  • [ 4 ] [Wang, Zhan]Beijing Univ Technol, Dept Chem & Chem Engn, Beijing Key Lab Green Catalysis & Separat, Beijing 100124, Peoples R China
  • [ 5 ] [Javed, Aroosa]NUST, Sch Nat Sci SNS, Dept Chem, H-12, Islamabad 44000, Pakistan
  • [ 6 ] [Ke, Ruihua]Jiangxi Environm Engn Vocat Coll, Sch Ecol Construct & Environm Protect, Ganzhou 341002, Peoples R China

通讯作者信息:

  • 王湛

    [Ke, Ruihua]Beijing Univ Technol, Dept Chem & Chem Engn, Beijing Key Lab Green Catalysis & Separat, Beijing 100124, Peoples R China;;[Wang, Zhan]Beijing Univ Technol, Dept Chem & Chem Engn, Beijing Key Lab Green Catalysis & Separat, Beijing 100124, Peoples R China;;[Ke, Ruihua]Jiangxi Environm Engn Vocat Coll, Sch Ecol Construct & Environm Protect, Ganzhou 341002, Peoples R China

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来源 :

NANOMATERIALS

年份: 2021

期: 8

卷: 11

5 . 3 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:8

被引次数:

WoS核心集被引频次: 9

SCOPUS被引频次: 9

ESI高被引论文在榜: 0 展开所有

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