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Z型BiVO/CuO/PPy异质结的制备及其CO还原性能研究。

Preparation of a Z-scheme BiVO/CuO/PPy heterojunction and studying its CO reducing properties.

作者信息

Ren Hengxin, Sun Xinyu, Li Tong, Ren Zhixin, Song Chaoyu, Lv Yuguang, Wang Ying

机构信息

College of Pharmacy, Jiamusi University Jiamusi 154007 China

School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University Shanghai 200000 China.

出版信息

RSC Adv. 2025 Apr 25;15(17):13313-13322. doi: 10.1039/d4ra08130g. eCollection 2025 Apr 22.

DOI:10.1039/d4ra08130g
PMID:40290754
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12022752/
Abstract

Herein, a new Z-scheme BiVO/CuO/PPy heterostructure photocatalyst was developed with bismuth nitrate and ammonium vanadate as the precursors and sodium dodecyl benzyl sulfonate as the soft template. Through the spatial confinement effect of the sodium dodecyl benzyl sulfonate soft template, peanut-like BiVO and the BiVO/CuO/PPy heterojunction were synthesized. The best performance was observed for BiVO/CuO/PPy (5%), and its photodegradation rate was 6.57 times higher than that of pure BiVO. The mechanism study showed that a light hole (h), superoxide radical (·O ), and hydroxyl radical (·OH) participated in the CO reduction process, which was different from the pure BiVO reaction system. Therefore, the proposed approach provides a new method for applying BiVO/CuO/PPy photocatalysts and developing the same type of heterojunction photocatalyst, and they have effective practical application for environmental remediation.

摘要

在此，以硝酸铋和钒酸铵为前驱体，十二烷基苄基磺酸钠为软模板，制备了一种新型的Z型BiVO/CuO/PPy异质结构光催化剂。通过十二烷基苄基磺酸钠软模板的空间限制效应，合成了花生状的BiVO以及BiVO/CuO/PPy异质结。BiVO/CuO/PPy（5%）表现出最佳性能，其光降解速率比纯BiVO高6.57倍。机理研究表明，光生空穴（h）、超氧自由基（·O ）和羟基自由基（·OH）参与了CO还原过程，这与纯BiVO反应体系不同。因此，所提出的方法为应用BiVO/CuO/PPy光催化剂和开发同类异质结光催化剂提供了一种新方法，它们在环境修复方面具有有效的实际应用价值。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bf23/12022752/8a076ddf19d5/d4ra08130g-f12.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bf23/12022752/8a076ddf19d5/d4ra08130g-f12.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bf23/12022752/e89725318930/d4ra08130g-f1.jpg
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