Mechanochemistry as an efficient method in Cu/P25 photocatalysts synthesis for CO2 photoreduction

IF 7.2 2区 工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY Journal of CO2 Utilization Pub Date : 2025-03-08 DOI:10.1016/j.jcou.2025.103055
Piotr Patulski, Javier Fernández-Catalá, Ángel Berenguer-Murcia, Diego Cazorla-Amorós
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Abstract

The presented research focuses on the implementation of mechanochemistry in the synthesis of TiO2-based catalysts with Cu-based species for CO2 photoreduction. Using a simple and reproducible methodology, 1 wt% of Cu was incorporated on P25 by ball milling using three metal precursor salts. The impregnation of copper was successful using mechanochemistry synthesis, being the percentages of copper impregnated very close to the nominal values. Our results indicate that Cu species are successfully loaded on the surface of P25 titania, which under the milling conditions may develop a detectable amount of brookite phase. When tested in the CO2 reduction reaction under UV light the highest conversion of CO2 towards CH4 and CH3CHO was obtained for the series of washed samples, which reached CH4 production rates over 70 μmol/g·h. These samples performed better compared to their unwashed equivalents in the photocatalytic tests. This highlights the washing step as crucial to fully uncover the potential of the prepared catalysts. The accomplished research and acquired results exhibit a significant potential in applying mechanochemistry for an efficient, environmentally friendly, and simple synthesis method for photocatalysts preparation.
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来源期刊
Journal of CO2 Utilization
Journal of CO2 Utilization CHEMISTRY, MULTIDISCIPLINARY-ENGINEERING, CHEMICAL
CiteScore
13.90
自引率
10.40%
发文量
406
审稿时长
2.8 months
期刊介绍: The Journal of CO2 Utilization offers a single, multi-disciplinary, scholarly platform for the exchange of novel research in the field of CO2 re-use for scientists and engineers in chemicals, fuels and materials. The emphasis is on the dissemination of leading-edge research from basic science to the development of new processes, technologies and applications. The Journal of CO2 Utilization publishes original peer-reviewed research papers, reviews, and short communications, including experimental and theoretical work, and analytical models and simulations.
期刊最新文献
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