Bio-inspired Z-scheme g-C3N4/Ag2CrO4 for efficient visible-light photocatalytic hydrogen generation

Abstract Due to low charge separation efficiency and poor stability, it is usually difficult for single-component photocatalysts such as graphitic carbon nitride (g-C3N4) and silver chromate (Ag2CrO4) to fulfill photocatalytic hydrogen production efficiently. Z-scheme charge transport mechanism that...

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Autores principales:	Yuping Che, Bingxin Lu, Qi Qi, Huaiqiu Chang, Jin Zhai, Kefeng Wang, Zhaoyue Liu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Photogenerated Electron Hole Pairs Silver Chromate Water Splitting Photo-catalytic Activity Graphitic Carbon Nitride Medicine R Science Q
Acceso en línea:	https://doaj.org/article/98c3919d04904bbea255877666193d36
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spelling	oai:doaj.org-article:98c3919d04904bbea255877666193d362021-12-02T15:09:06ZBio-inspired Z-scheme g-C3N4/Ag2CrO4 for efficient visible-light photocatalytic hydrogen generation10.1038/s41598-018-34287-w2045-2322https://doaj.org/article/98c3919d04904bbea255877666193d362018-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-34287-whttps://doaj.org/toc/2045-2322Abstract Due to low charge separation efficiency and poor stability, it is usually difficult for single-component photocatalysts such as graphitic carbon nitride (g-C3N4) and silver chromate (Ag2CrO4) to fulfill photocatalytic hydrogen production efficiently. Z-scheme charge transport mechanism that mimics the photosynthesis in nature is an effective way to solve the above problems. Inspired by photosynthesis, we report Ag2CrO4 nanoparticles-decorated g-C3N4 nanosheet as an efficient photocatalyst for hydrogen evolution reaction (HER) with methanol as sacrificial agent. The formation of Z-scheme g-C3N4/Ag2CrO4 nanosheets photocatalysts could inhibit the recombination of photogenerated electron-hole pairs, promote the generation of hydrogen by photosplitting of water. The experiment results indicate that g-C3N4/Ag2CrO4 nanocomposites present enhanced photocatalytic activity and stability in the H2 evolution of water splitting. And the nanocomposites g-C3N4/Ag2CrO4(23.1%) show the 14 times HER efficiency compared to that of bare g-C3N4.Yuping CheBingxin LuQi QiHuaiqiu ChangJin ZhaiKefeng WangZhaoyue LiuNature PortfolioarticlePhotogenerated Electron Hole PairsSilver ChromateWater SplittingPhoto-catalytic ActivityGraphitic Carbon NitrideMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-12 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Photogenerated Electron Hole Pairs Silver Chromate Water Splitting Photo-catalytic Activity Graphitic Carbon Nitride Medicine R Science Q
spellingShingle	Photogenerated Electron Hole Pairs Silver Chromate Water Splitting Photo-catalytic Activity Graphitic Carbon Nitride Medicine R Science Q Yuping Che Bingxin Lu Qi Qi Huaiqiu Chang Jin Zhai Kefeng Wang Zhaoyue Liu Bio-inspired Z-scheme g-C3N4/Ag2CrO4 for efficient visible-light photocatalytic hydrogen generation
description	Abstract Due to low charge separation efficiency and poor stability, it is usually difficult for single-component photocatalysts such as graphitic carbon nitride (g-C3N4) and silver chromate (Ag2CrO4) to fulfill photocatalytic hydrogen production efficiently. Z-scheme charge transport mechanism that mimics the photosynthesis in nature is an effective way to solve the above problems. Inspired by photosynthesis, we report Ag2CrO4 nanoparticles-decorated g-C3N4 nanosheet as an efficient photocatalyst for hydrogen evolution reaction (HER) with methanol as sacrificial agent. The formation of Z-scheme g-C3N4/Ag2CrO4 nanosheets photocatalysts could inhibit the recombination of photogenerated electron-hole pairs, promote the generation of hydrogen by photosplitting of water. The experiment results indicate that g-C3N4/Ag2CrO4 nanocomposites present enhanced photocatalytic activity and stability in the H2 evolution of water splitting. And the nanocomposites g-C3N4/Ag2CrO4(23.1%) show the 14 times HER efficiency compared to that of bare g-C3N4.
format	article
author	Yuping Che Bingxin Lu Qi Qi Huaiqiu Chang Jin Zhai Kefeng Wang Zhaoyue Liu
author_facet	Yuping Che Bingxin Lu Qi Qi Huaiqiu Chang Jin Zhai Kefeng Wang Zhaoyue Liu
author_sort	Yuping Che
title	Bio-inspired Z-scheme g-C3N4/Ag2CrO4 for efficient visible-light photocatalytic hydrogen generation
title_short	Bio-inspired Z-scheme g-C3N4/Ag2CrO4 for efficient visible-light photocatalytic hydrogen generation
title_full	Bio-inspired Z-scheme g-C3N4/Ag2CrO4 for efficient visible-light photocatalytic hydrogen generation
title_fullStr	Bio-inspired Z-scheme g-C3N4/Ag2CrO4 for efficient visible-light photocatalytic hydrogen generation
title_full_unstemmed	Bio-inspired Z-scheme g-C3N4/Ag2CrO4 for efficient visible-light photocatalytic hydrogen generation
title_sort	bio-inspired z-scheme g-c3n4/ag2cro4 for efficient visible-light photocatalytic hydrogen generation
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/98c3919d04904bbea255877666193d36
work_keys_str_mv	AT yupingche bioinspiredzschemegc3n4ag2cro4forefficientvisiblelightphotocatalytichydrogengeneration AT bingxinlu bioinspiredzschemegc3n4ag2cro4forefficientvisiblelightphotocatalytichydrogengeneration AT qiqi bioinspiredzschemegc3n4ag2cro4forefficientvisiblelightphotocatalytichydrogengeneration AT huaiqiuchang bioinspiredzschemegc3n4ag2cro4forefficientvisiblelightphotocatalytichydrogengeneration AT jinzhai bioinspiredzschemegc3n4ag2cro4forefficientvisiblelightphotocatalytichydrogengeneration AT kefengwang bioinspiredzschemegc3n4ag2cro4forefficientvisiblelightphotocatalytichydrogengeneration AT zhaoyueliu bioinspiredzschemegc3n4ag2cro4forefficientvisiblelightphotocatalytichydrogengeneration
_version_	1718387953981456384

Bio-inspired Z-scheme g-C3N4/Ag2CrO4 for efficient visible-light photocatalytic hydrogen generation

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