Effective photocatalytic H2O2 production under visible light irradiation at g-C3N4 modulated by carbon vacancies
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- 作者：Shuna Lia ; b ; Guohui Donga ; donggh@ms.xjb.ac.cn" class="auth_mail" title="E-mail the corresponding author ; Reshalaiti Haililia ; Liping Yanga ; Yingxuan Lia ; Fu Wanga ; Yubin Zengb ; zengyubin@whu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Chuanyi Wanga ; b ; cywang@ms.xjb.ac.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Photocatalysis ; Hydrogen peroxide ; Carbon vacancy ; g-C3N4 ; Oxygen reduction
- 刊名：Applied Catalysis B: Environmental
- 出版年：2016
- 出版时间：5 August 2016
- 年：2016
- 卷：190
- 期：Complete
- 页码：26-35
- 全文大小：3854 K
文摘
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Carbon vacancies have been successfully formed on the surface of g-C3N4.
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Photocatalytic H2O2 production at g-C3N4 could be improved by as much as 14 times in the absence of organic scavenger through a carbon vacancy-based strategy.
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Carbon vacancy could narrow the band gap of g-C3N4 to enhance its visible light absorption.
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The presence of carbon vacancies changed the H2O2 generation pathway from a two-step single-electron indirect reduction to a one-step two-electron direct reduction.