LSPR-assisted W18O49/ZnO S-scheme heterojunction for efficient photocatalytic CO2 N-formylation of aniline
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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11
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Chinese Journal of Catalysis, Volume 67, pp. 124-134
Abstract
Designing highly efficient photocatalyst for the valorization of CO2 is an ideal strategy to reduce greenhouse gas emissions and utilize solar energy. In this study, a S-scheme heterojunction photocatalyst is fabricated by solvothermal impregnation of ZnO on W18O49 for photocatalytic CO2 N-formylation of aniline. The localized surface plasmon resonance effect of W18O49 improves the absorption capacity for long-wave light significantly, and the hot electrons generated in W18O49 with a high energy can migrate to the conduction band of ZnO and thus enhance the photocatalytic reduction ability. Meanwhile, the S-scheme heterojunction facilitates the separation of photoinduced charge carriers and preserves the redox ability of W18O49/ZnO composite photocatalyst. The conversion of aniline reaches 99.1% after 5 h reaction under visible light irradiation at room temperature with an N-formylaniline selectivity of 100%. A possible photocatalytic reaction mechanism is proposed. This study paves a promising way for the design of highly efficient photocatalyst and the sustainable utilization of CO2.Description
Publisher Copyright: © 2024 Dalian Institute of Chemical Physics, the Chinese Academy of Sciences
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Chen, J, Bai, P, Yuan, S, He, Y, Niu, Z, Zhao, Y & Li, Y 2024, 'LSPR-assisted W 18 O 49 /ZnO S-scheme heterojunction for efficient photocatalytic CO 2 N-formylation of aniline', Chinese Journal of Catalysis, vol. 67, pp. 124-134. https://doi.org/10.1016/S1872-2067(24)60149-X