光催化
材料科学
化学工程
化学
纳米技术
催化作用
有机化学
工程类
作者
Jianing Chen,Fei Xue,Huiping Peng,Chih‐Wen Pao,Wei‐Hsiang Huang,Zhiwei Hu,Yong Xu,Xiaoqing Huang
出处
期刊:Langmuir
[American Chemical Society]
日期:2025-01-02
卷期号:41 (1): 1149-1156
被引量:5
标识
DOI:10.1021/acs.langmuir.4c04500
摘要
Oxygen and water generating hydrogen peroxide (H 2 O 2 ) by optical drive is an extremely promising pathway, and the large amount of oxygen in air and natural sunlight illumination are excellent catalytic conditions. However, the separation efficiency of photogenerated electron–hole pairs greatly limits the photocatalytic efficiency, especially in the absence of sacrificial agents. Here, we report an In 2 S 3 nanosheet with an S vacancy (S v -In 2 S 3 ). The highest H 2 O 2 yield of S v -In 2 S 3 is 2.585 mmol g –1 h –1 under pure water, air, and sunlight ( P = 920 W/m 2 ), largely outperforming other reported photocatalysts for H 2 O 2 production. The experimental results show that the introduction of S v accelerates the separation of photogenerated electron–hole pairs and achieves efficient H 2 O 2 production through an oxygen reduction reaction. This efficient photosynthesis under ambient conditions allows solar-chemical conversion to take place in a truly cost-effective and sustainable way, opening up possibilities for practical production.
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