Construction of Low-Cost Z-Scheme Heterojunction Cu 2 O/PCN-250 Photocatalysts Simultaneously for the Enhanced Photoreduction of CO 2 to Alcohols and Photooxidation of Water.

Autor: Yang MM; College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, Hubei 443002, China., Cao JM; College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, Hubei 443002, China., Qi GD; College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, Hubei 443002, China., Shen XY; College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, Hubei 443002, China., Yan GY; College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, Hubei 443002, China., Wang Y; College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, Hubei 443002, China.; Hubei Three Gorges Laboratory, Yichang, Hubei 443007, China., Dong WW; College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, Hubei 443002, China.; Hubei Three Gorges Laboratory, Yichang, Hubei 443007, China., Zhao J; College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, Hubei 443002, China.; Hubei Three Gorges Laboratory, Yichang, Hubei 443007, China., Li DS; College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, Hubei 443002, China.; Hubei Three Gorges Laboratory, Yichang, Hubei 443007, China., Zhang Q; Department of Materials Science and Engineering, Department of Chemistry, and Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong, SAR 999077, P. R. China.
Jazyk: angličtina
Zdroj: Inorganic chemistry [Inorg Chem] 2023 Oct 02; Vol. 62 (39), pp. 15963-15970. Date of Electronic Publication: 2023 Sep 19.
DOI: 10.1021/acs.inorgchem.3c02026
Abstrakt: Solar-driven high-efficiency conversion of CO 2 with water vapor into high-value-added alcohols is a promising approach for reducing CO 2 emissions and achieving carbon neutrality. However, the rapid recombination of photogenerated carriers and low CO 2 adsorption capacity of photocatalysts are usually the factors that limit their applicability. Herein, a series of low-cost Z-scheme heterostructures Cu 2 O/PCN-250- x are constructed by in situ growth of ultrasmall Cu 2 O nanoparticles on PCN-250. A systematic investigation revealed that there is a strong interaction between Cu 2 O nanoparticles and PCN-250. The resulting Cu 2 O/PCN-250-2 exhibits excellent photogenerated carrier separation efficiency and CO 2 adsorption capacity, which dramatically promote the conversion of CO 2 into alcohols. Notably, the total yield of 268 μmol g cat -1 for the production of CH 3 OH and CH 3 H 2 OH is superior to that of isolated PCN-250 and Cu 2 O. This study provides a new perspective for the design of a Cu 2 O nanoparticle/metal-organic framework Z-scheme heterojunction for the reduction of CO 2 to alcohols with water vapor.
Databáze: MEDLINE
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