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[期刊论文]

Photocatalytic membrane for in situ enhanced removal of semi-volatile organic compounds in membrane distillation under visible light

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author:

Ning, Rongsheng (Ning, Rongsheng.) [1] | Yan, Zhongsen (Yan, Zhongsen.) [2] (Scholars:鄢忠森) | Lu, Zhenyu (Lu, Zhenyu.) [3] | Unfold

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Abstract:

Membrane distillation (MD) is emerging as a promising technology for wastewater reclamation to relieve the shortage of freshwater. However, due to the contamination of semi-volatile organic compounds (s-VOCs), part of s-VOCs would transfer the membrane and impact the permeate quality during the MD process. Herein, an innovative AgCl/MIL-100(Fe)/PTFE photocatalytic membrane (AM/PTFE) was rationally synthesized in view of the increasing s-VOCs rejection. The AM/PTFE membrane was applied in the photocatalytic direct contact membrane distillation (DCMD) system and nitrobenzene (NB) was selected as the model contamination for evaluating removal performance of s-VOCs under visible light. Compared with the MD process, NB removal rate increased from 63.44% to 87.84% in the photocatalytic MD system. Moreover, stable performance was maintained over five NB removal cycles experiment with s-VOCs rejection higher than 84.84% in the end. The enhanced rejection of s-VOCs could be attributed to the combination of adsorption and photocatalytic. The volatile NB molecules were adsorbed on the surface of photocatalytic membranes, and the photo-electrons (e-) generated by immobilized nanomaterials could effectively remove pollutants under visible light irradiation. This photocatalytic MD system provides an attractive avenue for the water reclamation from s-VOCs contaminated wastewater in the practical applications.

Keyword:

In situ enhanced removal Membrane distillation Photocatalytic membrane Semi-volatile organic compounds Visible light

Community:

  • [ 1 ] [Ning, Rongsheng]Tongji Univ, Coll Environm Sci & Engn, State Key Lab Pollut Control & Resource Reuse, Shanghai 200092, Peoples R China
  • [ 2 ] [Ning, Rongsheng]Fuzhou Univ, Coll Civil Engn, Fuzhou 350116, Fujian, Peoples R China
  • [ 3 ] [Yan, Zhongsen]Fuzhou Univ, Coll Civil Engn, Fuzhou 350116, Fujian, Peoples R China
  • [ 4 ] [Lu, Zhenyu]Fuzhou Univ, Coll Civil Engn, Fuzhou 350116, Fujian, Peoples R China
  • [ 5 ] [Fan, Gongduan]Fuzhou Univ, Coll Civil Engn, Fuzhou 350116, Fujian, Peoples R China
  • [ 6 ] [Yan, Zhongsen]Zijin Min Grp Co Ltd, State Key Lab Comprehens Utilizat Low Grade Refra, Xiamen 361101, Peoples R China
  • [ 7 ] [Wang, Qiankun]Zijin Min Grp Co Ltd, State Key Lab Comprehens Utilizat Low Grade Refra, Xiamen 361101, Peoples R China
  • [ 8 ] [Wu, Zengling]Zijin Min Grp Co Ltd, State Key Lab Comprehens Utilizat Low Grade Refra, Xiamen 361101, Peoples R China
  • [ 9 ] [Yan, Zhongsen]Fuzhou Univ, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Fujian, Peoples R China
  • [ 10 ] [Dai, Wenxin]Fuzhou Univ, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Fujian, Peoples R China
  • [ 11 ] [Fu, Xianzhi]Fuzhou Univ, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Fujian, Peoples R China

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Source :

SEPARATION AND PURIFICATION TECHNOLOGY

ISSN: 1383-5866

Year: 2022

Volume: 292

8 . 6

JCR@2022

8 . 2 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

ESI HC Threshold:74

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 22

SCOPUS Cited Count: 17

30 Days PV: 1

Online/Total:187/10289290
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