Photocatalytic CO2 reduction coupled with biomass-based amines oxidation over double-shelled CdS nanocages

IF 3.4 3区化学 Q2 CHEMISTRY, PHYSICAL Catalysis Communications Pub Date : 2024-02-01 DOI:10.1016/j.catcom.2024.106884

Haoran Liu , Hanlin Zhou , Luowen Yang , Yixian Pan , Xin Zhao , Fengliang Wang , Ruiqi Fang , Yingwei Li

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Abstract

Solar-driven CO₂ reduction to CO production is often hampered by the kinetically sluggish water photooxidation and fast recombination of photocarriers. Herein, we report a photoredox system of CO₂ reduction coupled with biomass-based amines oxidation. Double-shelled CdS nanocages (CdS DSNC) are synthesized by a successive etching‑sulfuration strategy, which delivers impressive CO and difurfurylamine yields of 1226.4 and 5526.5 μmol·g⁻¹·h⁻¹, respectively. Mechanism studies uncover that the double-shelled structure endows CdS DSNC with high accessibility of active sites and short transfer distance for photocarriers. Besides, furfurylamine serves as both the electron donor and the capturer of CO₂, thus boosting the photoredox performance.

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双壳 CdS 纳米笼光催化二氧化碳还原和生物胺氧化

太阳能驱动的二氧化碳还原生成一氧化碳的过程往往受到动力学缓慢的水光氧化作用和光载体快速重组的阻碍。在此，我们报告了一种二氧化碳还原与生物质胺氧化耦合的光氧化系统。通过连续刻蚀-硫化策略合成了双壳 CdS 纳米笼（CdS DSNC），其 CO 和二糠胺产率分别达到了惊人的 1226.4 μmol-g-1-h-1 和 5526.5 μmol-g-1-h-1。机理研究发现，双壳结构使 CdS DSNC 具有高活性位点可达性和光载体传输距离短的特点。此外，糠胺既是电子供体，又是二氧化碳的捕获体，从而提高了光氧化性能。

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来源期刊

Catalysis Communications 化学-物理化学

CiteScore

6.20

自引率

2.70%

发文量

183

审稿时长

46 days

期刊介绍： Catalysis Communications aims to provide rapid publication of significant, novel, and timely research results homogeneous, heterogeneous, and enzymatic catalysis.