Fan Huitao, Hu Minglin, Duan Yabing, Zuo Luyang, Yu Ronggui, Li Zhuwei, Liu Qi, Li Bo, Wang Liya
College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University Nanyang 473601 P. R. China
Chem Sci. 2024 Dec 30;16(5):2316-2324. doi: 10.1039/d4sc07077a. eCollection 2025 Jan 29.
The conversion of carbon dioxide (CO) into carbon-neutral fuels using solar energy is crucial for achieving energy sustainability. However, the high carrier charge recombination and low CO adsorption capacity of the photocatalysts present significant challenges. In this paper, a TAPB-COF@ZnInS-30 (TAPB-COFZ-30) heterojunction photocatalyst was constructed by growth of ZnInS (ZIS) on a hollow covalent organic framework (HCOF) with a hollow core-shell structure for CO to CO conversion. Both experimental studies and theoretical calculations indicate that the construction of heterojunctions improves the efficiency of carrier separation and utilisation in photocatalysis. The yield of photoreduction of CO to CO by the TAPB-COFZ-30 heterojunction photocatalyst reached 2895.94 μmol g with high selectivity (95.75%). This study provides a feasible strategy for constructing highly active core-shell composite photocatalysts to optimize CO reduction.
利用太阳能将二氧化碳（CO₂）转化为碳中和燃料对于实现能源可持续性至关重要。然而，光催化剂的高载流子电荷复合和低CO₂吸附能力带来了重大挑战。本文通过在具有中空核壳结构的中空共价有机框架（HCOF）上生长ZnInS（ZIS）构建了一种TAPB-COF@ZnInS-30（TAPB-COFZ-30）异质结光催化剂，用于CO₂到CO的转化。实验研究和理论计算均表明，异质结的构建提高了光催化中载流子分离和利用的效率。TAPB-COFZ-30异质结光催化剂将CO₂光还原为CO的产率达到2895.94 μmol g⁻¹，具有高选择性（95.75%）。本研究为构建高活性核壳复合光催化剂以优化CO₂还原提供了一种可行策略。
