Constructing a visible-light-driven photocatalytic membrane by g-C3N4 quantum dots and TiO2 nanotube array for enhanced water treatment

Constructing a visible-light-driven photocatalytic membrane by g-C3N4 quantum dots and TiO2 nanotube array for enhanced water treatment

Abstract Photocatalytic membranes that driven by visible light are highly desired for water treatment. Here g-C3N4 quantum dots (QDs) assembled into TiO2 nanotube array (TNA) membranes were fabricated for the first time as a visible-light-driven g-C3N4/TNA membrane. Benefiting from the synergistic e...

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Main Authors: Qi Zhang, Xie Quan, Hua Wang, Shuo Chen, Yan Su, Zhangliang Li
Format: Article
Language:English
Published: Nature Publishing Group 2017-06-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-017-03347-y
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spelling doaj-f752c03c3ec54fc28498dbd506c53e092020-12-08T03:19:41ZengNature Publishing GroupScientific Reports2045-23222017-06-01711710.1038/s41598-017-03347-yConstructing a visible-light-driven photocatalytic membrane by g-C3N4 quantum dots and TiO2 nanotube array for enhanced water treatmentQi Zhang0Xie Quan1Hua Wang2Shuo Chen3Yan Su4Zhangliang Li5School of Fisheries and Life Science, Dalian Ocean UniversityFaculty of Chemical, Environmental and Biological Science and Technology, Dalian University of TechnologySchool of Fisheries and Life Science, Dalian Ocean UniversityFaculty of Chemical, Environmental and Biological Science and Technology, Dalian University of TechnologyFaculty of Chemical, Environmental and Biological Science and Technology, Dalian University of TechnologyFujian Provincial Key Laboratory of Ecology-Toxicological Effects & Control for Emerging ContaminantsAbstract Photocatalytic membranes that driven by visible light are highly desired for water treatment. Here g-C3N4 quantum dots (QDs) assembled into TiO2 nanotube array (TNA) membranes were fabricated for the first time as a visible-light-driven g-C3N4/TNA membrane. Benefiting from the synergistic effect of membrane filtration and photocatalysis, more than 60% of rhodamine B could be removed from water under visible light irradiation. Meanwhile, the g-C3N4/TNA membrane presented an enhanced anti-fouling ability during filtering water containing Escherichia coli under visible light irradiation, and a permeate flux of 2 times higher than that of filtration alone was obtained by integrated process. This study offers a promising strategy for the potential application of the visible-light-driven membranes in water treatment.https://doi.org/10.1038/s41598-017-03347-y
collection DOAJ
language English
format Article
sources DOAJ
author Qi Zhang
Xie Quan
Hua Wang
Shuo Chen
Yan Su
Zhangliang Li
spellingShingle Qi Zhang
Xie Quan
Hua Wang
Shuo Chen
Yan Su
Zhangliang Li
Constructing a visible-light-driven photocatalytic membrane by g-C3N4 quantum dots and TiO2 nanotube array for enhanced water treatment
Scientific Reports
author_facet Qi Zhang
Xie Quan
Hua Wang
Shuo Chen
Yan Su
Zhangliang Li
author_sort Qi Zhang
title Constructing a visible-light-driven photocatalytic membrane by g-C3N4 quantum dots and TiO2 nanotube array for enhanced water treatment
title_short Constructing a visible-light-driven photocatalytic membrane by g-C3N4 quantum dots and TiO2 nanotube array for enhanced water treatment
title_full Constructing a visible-light-driven photocatalytic membrane by g-C3N4 quantum dots and TiO2 nanotube array for enhanced water treatment
title_fullStr Constructing a visible-light-driven photocatalytic membrane by g-C3N4 quantum dots and TiO2 nanotube array for enhanced water treatment
title_full_unstemmed Constructing a visible-light-driven photocatalytic membrane by g-C3N4 quantum dots and TiO2 nanotube array for enhanced water treatment
title_sort constructing a visible-light-driven photocatalytic membrane by g-c3n4 quantum dots and tio2 nanotube array for enhanced water treatment
publisher Nature Publishing Group
series Scientific Reports
issn 2045-2322
publishDate 2017-06-01
description Abstract Photocatalytic membranes that driven by visible light are highly desired for water treatment. Here g-C3N4 quantum dots (QDs) assembled into TiO2 nanotube array (TNA) membranes were fabricated for the first time as a visible-light-driven g-C3N4/TNA membrane. Benefiting from the synergistic effect of membrane filtration and photocatalysis, more than 60% of rhodamine B could be removed from water under visible light irradiation. Meanwhile, the g-C3N4/TNA membrane presented an enhanced anti-fouling ability during filtering water containing Escherichia coli under visible light irradiation, and a permeate flux of 2 times higher than that of filtration alone was obtained by integrated process. This study offers a promising strategy for the potential application of the visible-light-driven membranes in water treatment.
url https://doi.org/10.1038/s41598-017-03347-y
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