Copper porphyrin modified BiOBr/Bi19S27Br3 for efficient CO2 photoreduction

Jiajing Zhang; Suwei Wang; Pin Song; Ang Li; Wei Jiang; Jun Di

doi:10.1016/j.jcis.2024.10.117

Copper porphyrin modified BiOBr/Bi₁₉S₂₇Br₃ for efficient CO₂ photoreduction

J Colloid Interface Sci. 2024 Oct 22;679(Pt B):383-390. doi: 10.1016/j.jcis.2024.10.117. Online ahead of print.

Authors

Jiajing Zhang¹, Suwei Wang¹, Pin Song², Ang Li³, Wei Jiang⁴, Jun Di⁵

Affiliations

¹ School of Chemistry and Chemical Engineering, National Special Superfine Powder Engineering Research Center, Nanjing University of Science and Technology, Nanjing 210094, China.
² Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Engineering Research Center of Carbon Neutrality, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China. Electronic address: [email protected].
³ MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China.
⁴ School of Chemistry and Chemical Engineering, National Special Superfine Powder Engineering Research Center, Nanjing University of Science and Technology, Nanjing 210094, China. Electronic address: [email protected].
⁵ School of Chemistry and Chemical Engineering, National Special Superfine Powder Engineering Research Center, Nanjing University of Science and Technology, Nanjing 210094, China; Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Engineering Research Center of Carbon Neutrality, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China. Electronic address: [email protected].

PMID: 39461127
DOI: 10.1016/j.jcis.2024.10.117

Abstract

The insufficient solar light response ability of the photocatalyst, rapid recombination of interface charges, and lack of active sites significantly inhibit the efficiency of photocatalytic CO₂ reduction. Addressing these challenges simultaneously is a very challenging task. Herein, an interface engineering coupled surface polarization strategy is proposed to optimize the CO₂ photoreduction performance. The copper tetracarboxyphenylporphyrin (CuTCPP) modified BiOBr/Bi₁₉S₂₇Br₃ (BBS) heterostructure was developed. The built-in electric field formed between BiOBr and Bi₁₉S₂₇Br₃ interfaces induces the effective interfacial charge separation, while the surface polarization of CuTCPP induces the transfer of electrons from the conduction band (CB) of BBS to the CB of CuTCPP. Benefiting from this unique configuration and abundant active sites in CuTCPP, greatly improved photocatalytic CO₂ reduction performance can be realized. Without adding cocatalysts and sacrificial agents, the optimized CO generation performance of CuTCPP-BiOBr/Bi₁₉S₂₇Br₃ (BBS-CT) is 3.5 times higher than that of BBS. This work provides valuable insights of interface engineering coupled surface polarization strategy for collaborative improve the photocatalytic CO₂ reduction performance.

Keywords: Bi(19)S(27)Br(3); BiOBr; CO(2) reduction; Copper porphyrin; Photocatalysis.