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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.3c02835
|2 doi
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|a pubmed24n1226.xml
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|a (NLM)38039067
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|a DE-627
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|a eng
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|a Guan, Yuan
|e verfasserin
|4 aut
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|a Carbonized Polymer Dots/Bi/β-Bi2O3 for Efficient Photosynthesis of H2O2 via Redox Dual Pathways
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 12.12.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a A novel heterojunction photocatalyst of carbonized polymer dots (CPDs)/Bi/β-Bi2O3 is successfully synthesized via a one-pot solvothermal method by adjusting the reaction temperature and time. As a solvent and carbon source, ethylene glycol not only supports the conversion of Bi3+ to β-Bi2O3 but also undergoes its polymerization, cross-linking, and carbonization to produce CPDs. In addition, partial Bi3+ is reduced to Bi by ethylene glycol. As a result, the CPDs and Bi are deposited in situ on the surface of β-Bi2O3 microspheres. There are four built-in electric fields in the CPDs/Bi/β-Bi2O3 system, namely, the n-type semiconductor β-Bi2O3/H2O interface, the p-type CPDs/H2O interface, the ohmic contact between Bi and β-Bi2O3, and the Schottky junction between Bi and CPDs. Under the action of four built-in electric fields, the Z-type charge separation mechanism is formed. It promotes the effective separation of the photogenerated electron-hole and greatly improves the yield of H2O2. Under irradiation for 2 h, the H2O2 production is 1590 μmol g-1 h-1. The solar energy to H2O2 conversion efficiency is 0.11%
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|a Journal Article
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|a Deng, Qiankun
|e verfasserin
|4 aut
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|a Wang, Jie
|e verfasserin
|4 aut
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| 700 |
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|a Wang, Shaomang
|e verfasserin
|4 aut
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|a Li, Zhongyu
|e verfasserin
|4 aut
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|a He, Huan
|e verfasserin
|4 aut
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|a Yan, Shicheng
|e verfasserin
|4 aut
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|a Zou, Zhigang
|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 39(2023), 49 vom: 12. Dez., Seite 18060-18072
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:39
|g year:2023
|g number:49
|g day:12
|g month:12
|g pages:18060-18072
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|u http://dx.doi.org/10.1021/acs.langmuir.3c02835
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