Weizi Chen, Zipeng Xing, Na Zhang, Tao Cheng, Bo Ren, Xinyue Liu, Zibin Wang, Zhenzi Li, Wei Zhou
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引用次数: 0
摘要
利用水热法制备了分层 Bi2Fe4O9/BiOI S 型纳米花异质结构,该异质结构具有优异的光压电催化性能。片层之间的紧密结合保证了电子的高效传输,并为光压电催化反应提供了较大的界面面积和充足的反应位点。同时,由于水体中的水流对材料产生水力剪切力,材料产生压电效应。Bi2Fe4O9/BiOI 对四环素的降解效率高达 99.4%,产氢率为 4089.36 µmol h-1 g-1。原位 XPS、瞬态/稳态荧光和压电响应力测试证实,所观察到的行为可解释为 S 型结构的形成和光压电催化过程的共同影响。该材料的出色稳定性表明,它有可能用于能源和环境领域。这项工作为未来推进光压电协同催化引入了新的概念。
Hierarchical Bi2Fe4O9/BiOI S-scheme nanoflower heterostructures are prepared by hydrothermal method, which exhibit exceptional photo-piezoelectric catalytic performance. The tight binding between the sheets ensures the efficient electron transport, and provides a large interface area and adequate reaction sites for photo-piezoelectric catalytic reactions. At the same time, because the water flow in the water body produces hydraulic shear force on the material, the material produces piezoelectric effect. Bi2Fe4O9/BiOI exhibit a remarkable degradation efficiency of 99.4% for tetracycline and a hydrogen production rate of 4089.36 µmol h−1 g−1. The observed behavior can be explained by the combined influence of the formation of S-scheme structure and the process of photo-piezoelectric catalysis, confirmed by in-situ XPS, transient/steady-state fluorescence and piezoelectric response force test. The excellent stability of the material suggests its possible use in the sectors of energy and environment. This work introduces novel concepts for the future advancement of photo-piezoelectric synergistic catalysis.
npj Clean WaterEnvironmental Science-Water Science and Technology
CiteScore
15.30
自引率
2.60%
发文量
61
审稿时长
5 weeks
期刊介绍:
npj Clean Water publishes high-quality papers that report cutting-edge science, technology, applications, policies, and societal issues contributing to a more sustainable supply of clean water. The journal's publications may also support and accelerate the achievement of Sustainable Development Goal 6, which focuses on clean water and sanitation.