Cu-doped OMS-2 catalysts for photothermal synergistic VOCs segradation: Efficiency enhancement under UV-Vis irradiation in flow conditions
Year: 2025
Type: article
Abstract: Photothermal synergistic catalytic systems for treating volatile organic compounds (VOCs) have attracted significant attention due to their energy efficiency and potential to reduce carbon emissions. However, the mechanism underlying the synergistic reaction remains a critical issue. This study introduces a photothermal synergistic system for the removal of ethyl acetate (EA) by synthesizing Cu-doped OMS-2 (denoted as Cu-OMS-2). Under ultraviolet-visible (UV–Vis) irradiation in a flow system, the Cu-OMS-2 catalyst exhibited significantly enhanced performance in the EA degradation process, nearly doubling the effectiveness of pure OMS-2, and increasing carbon dioxide yield by 20 %. This exceptional performance is attributed to the synergistic effect of increased oxygen vacancies (OV) at OMS-2 active sites and Cu doping, as confirmed by H 2 -TPR, O 2 -TPD, and CO consumption measurements. This study clarifies the catalytic mechanism of light-assisted thermocatalysis and offers a novel strategy for designing photothermal catalysts with homogeneous Cu-doped nanorods for VOC removal.
Authors: Yunchao Liu, Xinyu Qi, Xiang Bai, Yuanli Lu, Jing Sun, Chen Wang, Tingting Shen, Hao Liu, Yanyan Liu, Jiaqi Zhao, Tianyu Ji, Ruobing Liu, Yiling Liu, Zhenggang Wang, Haijiao Xie
Institutions: Qilu University of Technology, Shandong Academy of Sciences
Language: English
Field: Energy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,000
OpenAlex ID: W4409004465