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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.1c02360
|2 doi
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|a eng
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|a Liu, Bowen
|e verfasserin
|4 aut
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|a Hierarchically Porous ZnO/g-C3N4 S-Scheme Heterojunction Photocatalyst for Efficient H2O2 Production
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|c 2021
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 08.12.2021
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The design of photocatalysts with hierarchical pore sizes is an effective method to improve mass transport, enhance light absorption, and increase specific surface area. Moreover, the construction of a heterojunction at the interface of two semiconductor photocatalysts with suitable band positions plays a crucial role in separating and transporting charge carriers. Herein, ZIF-8 and urea are used as precursors to prepare hierarchically porous ZnO/g-C3N4 S-scheme heterojunction photocatalysts through a two-step calcination method. This S-scheme heterojunction photocatalyst shows high activity toward photocatalytic H2O2 production, which is 3.4 and 5.0 times higher than that of pure g-C3N4 and ZnO, respectively. The mechanism of charge transfer and separation within the S-scheme heterojunction is studied by Kelvin probe, in situ irradiated X-ray photoelectron spectroscopy (ISI-XPS), and electron paramagnetic resonance (EPR). This research provides an idea of designing S-scheme heterojunction photocatalysts with hierarchical pores in efficient photocatalytic hydrogen peroxide production
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|a Journal Article
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|a Bie, Chuanbiao
|e verfasserin
|4 aut
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|a Zhang, Yong
|e verfasserin
|4 aut
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|a Wang, Linxi
|e verfasserin
|4 aut
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|a Li, Youji
|e verfasserin
|4 aut
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|a Yu, Jiaguo
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 37(2021), 48 vom: 07. Dez., Seite 14114-14124
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|g volume:37
|g year:2021
|g number:48
|g day:07
|g month:12
|g pages:14114-14124
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|u http://dx.doi.org/10.1021/acs.langmuir.1c02360
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