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Updated: Feb 25, 2026

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
Published on: October 5, 2019
Solar-driven co-production of C2H4 and H2O2 from CO2 and H2O
Zhongkai Xie1,2, Hongyun Luo1, Shanhe Gong1
1School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China.
Abstract:
Solar-driven conversion CO2 and H2O into valuable C2H4 and H2O2 chemicals holds immense potential for mitigating CO2 levels and maximize the economic feasibility. Nevertheless, based on the accessible *OH overoxidation and recombination process of *H-*OH in gas-solid reaction system, the concept that efficient synthesis of C2H4 and H2O2 has not been simultaneously realized in photoconversion of low-cost CO2 and H2O. To substantiate the importance of limiting *OH overoxidation as well as mitigating *H-*OH recombination, we have developed a spatially confined Cu/AgBr/TiO2 ternary hybrid architecture. This precise spatial confinement structure not only proves the influence of restrained *OH overoxidation and *H-*OH recombination on Cu sites for selective hydrocarbon production, but also highlights the role of *OH in promoting *CO coupling during CO2 photoreduction and provide the high-concentration *OH coverage for H2O2 production in gas-solid phase reaction. Here, the findings contribute to reveal the selectively catalytic mechanisms by associating with specific insights of H2O evolution behavior for efficient and selective CO2 conversion to C2H4 and H2O2.
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