A tube-like dual Z-scheme indium oxide@indium phosphide/cuprous oxide photocatalyst based on metal-organic framework for efficient CO2 reduction with water

Yi Wang; Jixiang Xu; Jun Wan; Jing Wang; Lei Wang

doi:10.1016/j.jcis.2022.02.101

A tube-like dual Z-scheme indium oxide@indium phosphide/cuprous oxide photocatalyst based on metal-organic framework for efficient CO₂ reduction with water

J Colloid Interface Sci. 2022 Jun 15:616:532-539. doi: 10.1016/j.jcis.2022.02.101. Epub 2022 Feb 22.

Authors

Yi Wang¹, Jixiang Xu², Jun Wan¹, Jing Wang³, Lei Wang⁴

Affiliations

¹ Key Laboratory of Eco-chemical Engineering, Taishan Scholar Advantage and Characteristic Discipline Team of Eco-Chemical Process and Technology, Qingdao University of Science and Technology, Qingdao 266042, China; College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China.
² Key Laboratory of Eco-chemical Engineering, Taishan Scholar Advantage and Characteristic Discipline Team of Eco-Chemical Process and Technology, Qingdao University of Science and Technology, Qingdao 266042, China; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China. Electronic address: xujix47@163.com.
³ College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
⁴ Key Laboratory of Eco-chemical Engineering, Taishan Scholar Advantage and Characteristic Discipline Team of Eco-Chemical Process and Technology, Qingdao University of Science and Technology, Qingdao 266042, China; College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China. Electronic address: inorchemwl@126.com.

PMID: 35231702
DOI: 10.1016/j.jcis.2022.02.101

Abstract

Developing a photocatalyst for efficient reduction of carbon dioxide (CO₂) is a long-term goal to address global climate change. In this work, a tube-like indium oxide@indium phosphide/cuprous oxide (In₂O₃@InP/Cu₂O) photocatalyst was prepared by annealing-phosphidation of In-Materials of Institute Lavoisier-68 (In-MIL-68) followed by electrodeposition of Cu₂O, which was used to reduce CO₂ with water under light irradiation. Partial phosphidation of In₂O₃ endowed In₂O₃@InP/Cu₂O with strong light-harvesting ability. The In₂O₃@InP heterojunction combined with in situ loaded Cu₂O provided a dual Z-scheme heterojunction for efficient electrons-holes separation. Under the synergisms of each component, the optimized In₂O₃@InP₆₀/Cu₂O-1 exhibited strong adsorption of CO₂ and excellent photocatalytic performance in CO₂ reduction. The yields of CO and CH₄ were 13.7 and 38.8 μmol g^-1, respectively, after 5 h simulated light illumination, higher than the corresponding yields with In₂O₃ (CO: 7.2 μmol g^-1, CH₄: 13.2 μmol g^-1). This study may provide some insights into the design of specific ternary photocatalysts with dual Z-scheme charge transfer mode for CO₂ reduction.

Keywords: Cu(2)O; Phosphidation; Photocatalytic CO(2) reduction; dual Z-scheme; tube In(2)O(3).