Synergetic effect of piezoelectricity and heterojunction on photocatalytic performance

Xin Yin; Wen Wu; Fangshu Zhang; Ling Li; Jiahui Kou; Chunhua Lu

doi:10.1016/j.jphotochem.2020.112661

Synergetic effect of piezoelectricity and heterojunction on photocatalytic performance

Xin Yin, Wen Wu, Fangshu Zhang, Ling Li, Jiahui Kou, Chunhua Lu

College of Materials Science and Engineering

Nanjing Tech University

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

The less-than-ideal photogenerated electron-hole behaviors is one of the significant reasons for the low photocatalytic efficiency. In this work, organic piezoelectric material, PVDF, was used to restrain the recombination of photogenerated electron-hole of MoS₂/g-C₃N₄ heterojunction photocatalyst, which aimed to enhance the photocatalytic performance. After being compounded with the PVDF, the photocatalytic activity of MoS₂/g-C₃N₄ heterojunction can be increased by 66.8 %, which showed that the MoS₂/g-C₃N₄ heterojunction had an excellent enhancement effect on the photocatalytic efficiency of the composite film. Compared with the pristine g-C₃N₄ photocatalyst piezoelectric film, the piezoelectric effect of heterojunction piezoelectric films varies with the different amounts of MoS₂. Among these different piezoelectric films, the 10-M-CN-P film possess highest photocatalytic performance, possibly due to the best synergistical effect of piezoelectricity and heterojunction.

Original language	English
Article number	112661
Journal	Journal of Photochemistry and Photobiology A: Chemistry
Volume	400
DOIs	https://doi.org/10.1016/j.jphotochem.2020.112661
State	Published - 1 Sep 2020

Keywords

Heterojunction
MoS
Photocatalysis
Piezoelectric
g-CN

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title = "Synergetic effect of piezoelectricity and heterojunction on photocatalytic performance",

abstract = "The less-than-ideal photogenerated electron-hole behaviors is one of the significant reasons for the low photocatalytic efficiency. In this work, organic piezoelectric material, PVDF, was used to restrain the recombination of photogenerated electron-hole of MoS2/g-C3N4 heterojunction photocatalyst, which aimed to enhance the photocatalytic performance. After being compounded with the PVDF, the photocatalytic activity of MoS2/g-C3N4 heterojunction can be increased by 66.8 %, which showed that the MoS2/g-C3N4 heterojunction had an excellent enhancement effect on the photocatalytic efficiency of the composite film. Compared with the pristine g-C3N4 photocatalyst piezoelectric film, the piezoelectric effect of heterojunction piezoelectric films varies with the different amounts of MoS2. Among these different piezoelectric films, the 10-M-CN-P film possess highest photocatalytic performance, possibly due to the best synergistical effect of piezoelectricity and heterojunction.",

keywords = "Heterojunction, MoS, Photocatalysis, Piezoelectric, g-CN",

author = "Xin Yin and Wen Wu and Fangshu Zhang and Ling Li and Jiahui Kou and Chunhua Lu",

note = "Publisher Copyright: {\textcopyright} 2020",

year = "2020",

month = sep,

day = "1",

doi = "10.1016/j.jphotochem.2020.112661",

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T1 - Synergetic effect of piezoelectricity and heterojunction on photocatalytic performance

AU - Yin, Xin

AU - Wu, Wen

AU - Zhang, Fangshu

AU - Li, Ling

AU - Kou, Jiahui

AU - Lu, Chunhua

PY - 2020/9/1

Y1 - 2020/9/1

N2 - The less-than-ideal photogenerated electron-hole behaviors is one of the significant reasons for the low photocatalytic efficiency. In this work, organic piezoelectric material, PVDF, was used to restrain the recombination of photogenerated electron-hole of MoS2/g-C3N4 heterojunction photocatalyst, which aimed to enhance the photocatalytic performance. After being compounded with the PVDF, the photocatalytic activity of MoS2/g-C3N4 heterojunction can be increased by 66.8 %, which showed that the MoS2/g-C3N4 heterojunction had an excellent enhancement effect on the photocatalytic efficiency of the composite film. Compared with the pristine g-C3N4 photocatalyst piezoelectric film, the piezoelectric effect of heterojunction piezoelectric films varies with the different amounts of MoS2. Among these different piezoelectric films, the 10-M-CN-P film possess highest photocatalytic performance, possibly due to the best synergistical effect of piezoelectricity and heterojunction.

AB - The less-than-ideal photogenerated electron-hole behaviors is one of the significant reasons for the low photocatalytic efficiency. In this work, organic piezoelectric material, PVDF, was used to restrain the recombination of photogenerated electron-hole of MoS2/g-C3N4 heterojunction photocatalyst, which aimed to enhance the photocatalytic performance. After being compounded with the PVDF, the photocatalytic activity of MoS2/g-C3N4 heterojunction can be increased by 66.8 %, which showed that the MoS2/g-C3N4 heterojunction had an excellent enhancement effect on the photocatalytic efficiency of the composite film. Compared with the pristine g-C3N4 photocatalyst piezoelectric film, the piezoelectric effect of heterojunction piezoelectric films varies with the different amounts of MoS2. Among these different piezoelectric films, the 10-M-CN-P film possess highest photocatalytic performance, possibly due to the best synergistical effect of piezoelectricity and heterojunction.

KW - Heterojunction

KW - MoS

KW - Photocatalysis

KW - Piezoelectric

KW - g-CN

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DO - 10.1016/j.jphotochem.2020.112661

M3 - 文章

AN - SCOPUS:85085984893

SN - 1010-6030

VL - 400

JO - Journal of Photochemistry and Photobiology A: Chemistry

JF - Journal of Photochemistry and Photobiology A: Chemistry

M1 - 112661

ER -

Synergetic effect of piezoelectricity and heterojunction on photocatalytic performance

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Keywords

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