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240211s2024 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.3c03854
|2 doi
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|a eng
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|a Huang, Jiayang
|e verfasserin
|4 aut
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|a Improved Charge Separation and CO2 Affinity of In2O3 by K Doping with Accompanying Oxygen Vacancies for Boosted CO2 Photoreduction
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|c 2024
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|a Text
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|a ƒaComputermedien
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|a Date Revised 10.02.2024
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a The CO2 photocatalytic conversion efficiency of the semiconductor photocatalyst is always inhibited by the sluggish charge transfer and undesirable CO2 affinity. In this work, we prepare a series of K-doped In2O3 catalysts with concomitant oxygen vacancies (OV) via a hydrothermal method, followed by a low-temperature sintering treatment. Owing to the synergistic effect of K doping and OV, the charge separation and CO2 affinity of In2O3 are synchronously promoted. Particularly, when P/P0 = 0.010, at room temperature, the CO2 adsorption capacity of the optimal K-doped In2O3 (KIO-3) is 2336 cm3·g-1, reaching about 6000 times higher than that of In2O3 (0.39 cm3·g-1). As a result, in the absence of a cocatalyst or sacrificial agent, KIO-3 exhibits a CO evolution rate of 3.97 μmol·g-1·h-1 in a gas-solid reaction system, which is 7.6 times that of pristine In2O3 (0.52 μmol·g-1·h-1). This study provides a novel approach to the design and development of efficient photocatalysts for CO2 conversion by element doping
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|a Journal Article
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|a Wu, Tao
|e verfasserin
|4 aut
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|a Dai, Chunhui
|e verfasserin
|4 aut
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|a Xie, Yunchang
|e verfasserin
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|a Zeng, Chao
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g (2024) vom: 10. Feb.
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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|g year:2024
|g day:10
|g month:02
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|u http://dx.doi.org/10.1021/acs.langmuir.3c03854
|3 Volltext
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