Work

The synergy between silver-cobalt dual-active sites on exfoliated carbon nitride for efficient CO2 photoreduction

Year: 2025

Type: article

Abstract: The photocatalytic reduction of CO 2 presents a promising strategy for addressing the pressing environmental and energy crises. Here, we anchored AgCo alloy nanoparticles to hydrogen-exfoliated C 3 N 4 (HCN) and used the catalyst for photocatalytic reduction of CO 2 . Studies have shown that introducing N vacancies in C 3 N 4 through hydrogen exfoliation has led to a notable enhancement in visible light absorption. Ag acts as an adsorption and catalytic site for CO 2 molecules, enhancing the interfacial activation of CO 2 . Co acts as a hole-trapping site and significantly enhances the charge transport capability of the material. The synergy between Ag and Co together promoted photocatalytic CO 2 conversion, and the CO yield reached 4.35 μmol/h with 98.9 % CO selectivity, which was 62 times higher than that of pristine C 3 N 4 . This study offers a versatile platform for the design of synergistic catalysts aimed at efficient solar energy conversion .

Source: Journal of Alloys and Compounds

DOI: 10.1016/j.jallcom.2025.180595

Authors: Chao Huang, Xuelian Yu, Jiangpeng Wang, Deng Liu, Yingmo Hu, Libing Liao

Language: English

Topic: Advanced Photocatalysis Techniques

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDGs: Climate action, Affordable and clean energy

Open Access status: hybrid

Estimated APC paid: $3,660

Funders: National Natural Science Foundation of China, Natural Science Foundation of Beijing Municipality