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author:

Yu, Fan (Yu, Fan.) [1] | Liu, Riri (Liu, Riri.) [2] | Chen, Lianxin (Chen, Lianxin.) [3] | Yuan, Weishuang (Yuan, Weishuang.) [4] | Chen, Qin (Chen, Qin.) [5] | Fang, Shengqiong (Fang, Shengqiong.) [6] (Scholars:方圣琼) | Lin, Jiuyang (Lin, Jiuyang.) [7]

Indexed by:

EI Scopus SCIE

Abstract:

Numerous superwetting separation membranes have been designed for the management of oily wastewater due to their highly efficient oil/water separation efficiency. However, the long-term stability of these developed membranes is still restricted by membrane fouling. In this study, we synthesized multifunctional superhydrophilic membranes with superior anti-adhesive and anti-biofouling properties through simple co-deposition of dopamine, polyethyleneimine and CoFe2O4 (CFO) photocatalyst on the porous PVDF substrates for sustainable management of oil-in-water emulsion. The resultant optimal composite membranes showed the superhydropilicity with an underwater oil contact angle of 162.4 degrees and achieved ca. 99.51 % oil/water separation efficiency with a maximum permeability of 232.2 Lm(-2)h(-1) in the treatment of oil-in-water emulsions driven by gravity. Moreover, the outstanding antibacterial performance of composite membrane was demonstrated by a nearly 100 % antibacterial rate during the exposure in 120-min visible light irradiation. Based on the synergistic effect of superhydrophilicity and photocatalysis, the fabricated composite membranes experienced a stable gravity-driven oil/water separation (oil rejection: >99.46 %) even after a 50-cycle filtration. Such an impressive filtration performance of the polydopamine/PEI/CFO composite membranes highlights their promising potential for sustainable and efficient treatment of oily wastewater.

Keyword:

CoFe2 O(4 )nanoparticles Dopamine Fouling Oil/Water separation Photocatalysis Superhydrophilicity

Community:

  • [ 1 ] [Yu, Fan]Fuzhou Univ, Coll Environm & Safety Engn, Fuzhou 350116, Peoples R China
  • [ 2 ] [Liu, Riri]Fuzhou Univ, Coll Environm & Safety Engn, Fuzhou 350116, Peoples R China
  • [ 3 ] [Chen, Lianxin]Fuzhou Univ, Coll Environm & Safety Engn, Fuzhou 350116, Peoples R China
  • [ 4 ] [Chen, Qin]Fuzhou Univ, Coll Environm & Safety Engn, Fuzhou 350116, Peoples R China
  • [ 5 ] [Fang, Shengqiong]Fuzhou Univ, Coll Environm & Safety Engn, Fuzhou 350116, Peoples R China
  • [ 6 ] [Yuan, Weishuang]Fujian Agr & Forestry Univ, Coll Resources & Environm, Fuzhou 350002, Peoples R China
  • [ 7 ] [Lin, Jiuyang]Chinese Acad Sci, Key Lab Rare Earths, Ganzhou 341000, Peoples R China
  • [ 8 ] [Lin, Jiuyang]Chinese Acad Sci, Ganjiang Innovat Acad, Ganzhou 341000, Peoples R China

Reprint 's Address:

  • [Fang, Shengqiong]Fuzhou Univ, Coll Environm & Safety Engn, Fuzhou 350116, Peoples R China;;[Lin, Jiuyang]Chinese Acad Sci, Key Lab Rare Earths, Ganzhou 341000, Peoples R China;;

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Source :

SEPARATION AND PURIFICATION TECHNOLOGY

ISSN: 1383-5866

Year: 2024

Volume: 356

8 . 2 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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