基于阳极氧化钨箔的Z型BiVO4/WO3光电极构建与作用机理研究

杨富林; YANG Fulin; 李婷婷; LI Tingting; 林宇熙; LIN Yuxi; 汪向上; WANG Xiangshang; 闵宇萱; MIN Yuxuan; 杨奇东; YANG Qidong; 孙子康; SUN Zikang; 李冬雪; LI Dongxue

doi:10.48014/jccm.20250120001

基于阳极氧化钨箔的Z型BiVO4/WO3光电极构建与作用机理研究

Construction and Mechanism Study of Z-scheme BiVO4/ WO3 Photoelectrodes Based on Anodized Tungsten Oxide Foils

中国化学与材料学报 2025年第1卷第1期页码[1-21] 下载全文[13.2MB]

摘要

三氧化钨具有良好的可见光响应、氧化能力和耐光腐蚀性, 是理想的光电极材料, 但光生电荷分离效率低、还原能力弱和活性位点少等缺陷限制其广泛应用。本文利用阳极氧化法结合电沉积———化学氧化法在钨箔上原位生长BiVO4/WO3光电极。在模拟太阳光照射和辅助偏压0. 6V的协同作用下, BiVO4/WO3光电极对盐酸四环素、氧四环素和氯四环素的降解率高达95. 8%、85. 6%和96. 9%。此外, 以BiVO4/WO3光电极作阳极, 与铂碳阴极所构建的光催化燃料电池表现出优异的产电性能, 以甲醇为燃料时, 填充因子FF可以达到0. 3793, 是WO3光电极的1. 35倍。这是因为BiVO4与WO3接触界面形成的Z型异质结, 使BiVO4/WO3光电极具有活性位点多、光响应能力强、光生电荷分离效率高以及氧化还原能力强等优势。

Abstract

Tungsten trioxide is an ideal candidate for photoelectrodes because of its good visible light response, oxidizing ability, and photocorrosion resistance. However, the defects of tungsten trioxide, including poor photogenerated charge separation efficiency, reducing ability, and active site density, limit its wide application. In this paper, BiVO4/WO3 was in situ grown on tungsten foi by anodic oxidation combined with electrodeposition-chemical oxidation methods. Under the synergic effect of simulated solar irradiation and auxiliary bias voltage of 0. 6 V, the degradation rates of tetracycline hydrochloride, oxytetracycline and chlortetracycline by the BiVO4/WO3 photoelectrodes were 95. 8%, 85. 6%, and 96. 9%, respectively. In addition, the photocatalytic fuel cell constructed with a BiVO4/WO3 photoelectrode as anode and a platinumcarbon cathode exhibited excellent power production performance. When methanol was used as the fuel, the filling factor FF could reach 0. 3793, which is 1. 35 times that of WO3 photoelectrode. The interface between BiVO4 and WO3 forms a Z-scheme heterojunction, which endows the BiVO4/WO3 photoelectrode has the advantages of multiple active sites, strong light capture, high photogenerated charge separation efficiency and redox capacity.

DOI

10.48014/jccm.20250120001

文章类型

研究性论文

收稿日期

2025-01-20

接收日期

2025-03-27

出版日期

2025-06-28

关键词

BiVO4/WO3, 光电催化, Z型异质结, 降解, 产电

Keywords

BiVO4/WO3, photoelectrocatalysis, Z-scheme heterojunction, degradation, power generation

作者

杨富林, 李婷婷^*, 林宇熙, 汪向上, 闵宇萱, 杨奇东, 孙子康, 李冬雪

Author

YANG Fulin, LI Tingting^*, LIN Yuxi, WANG Xiangshang, MIN Yuxuan, YANG Qidong, SUN Zikang, LI Dongxue

所在单位

环境与化学工程学院南昌航空大学, 南昌 330063

Company

School of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, China

浏览量

下载量

基金项目

国家自然科学基金地区基金项目(52260027)、江西省自然科学基金项目(20242BAB25322)资助。

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引用本文

杨富林, 李婷婷, 林宇熙, 等. 基于阳极氧化钨箔的Z型BiVO4/WO3光电极构建与作用机理研究[J]. 中国化学与材料学报, 2025, 1(1): 1-21.

Citation

YANG Fulin, LI Tingting, LIN Yuxi, et al. Construction and mechanism study of Z-scheme Bi- VO4/WO3 photoelectrodes based on anodized tungsten oxide foils[J]. Journal of Chinese Chemistry and Materials, 2025, 1(1): 1-21.