Influence of reaction time on hydrothermal synthesis and visible-light-driven photocatalytic properties of BiVO4 nanostructures

IF 2.8 4区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of Materials Science: Materials in Electronics Pub Date : 2025-04-26 DOI:10.1007/s10854-025-14780-5

Mohammad Yousefipour, Mehdi Boroujerdnia, Azadeh Haghighatzadeh

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引用次数: 0

Abstract

This study discusses the hydrothermal synthesis and reaction-time-dependent properties of nanostructured BiVO₄ photocatalysts. The growth of these photocatalysts took place in aqueous solutions containing bismuth nitrate pentahydrate and ammonium metavanadate precursors for varying durations (4, 6, and 8 h). The synthesized samples were characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Raman spectroscopy, Field-emission scanning electron microscopy (FESEM), Energy-dispersive X-ray spectroscopy (EDX), and UV–Vis diffuse reflectance spectroscopy (UV–Vis DRS). The photocatalytic performance of the BiVO₄ samples was assessed through the degradation of methylene blue (MB) under visible-light irradiation. The photocatalytic activity showed a strong correlation with the visible-light absorption capacity. Nanostructured BiVO₄ photocatalysts demonstrated an increasing trend in photodegradation with shorter hydrothermal reaction times, attributed to larger particle sizes and a reduced optical bandgap. A potential photocatalytic reaction mechanism for MB degradation over nanostructured BiVO₄ was also discussed. This study offers a practical and efficient method for the intelligent design and controlled synthesis of a promising material for applications in photocatalysis.

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反应时间对水热合成及BiVO4纳米结构可见光驱动光催化性能的影响

本研究讨论了水热合成纳米结构BiVO4光催化剂及其随反应时间变化的性质。这些光催化剂在含有五水硝酸铋和偏氰酸铵前驱体的水溶液中生长了不同的时间（4,6和8 h）。合成的样品使用x射线衍射（XRD）、傅里叶变换红外光谱（FT-IR）、拉曼光谱、场发射扫描电子显微镜（FESEM）、能量色散x射线光谱（EDX）和UV-Vis漫反射光谱（UV-Vis DRS）进行了表征。通过在可见光照射下对亚甲基蓝（MB）的降解来评价BiVO4样品的光催化性能。光催化活性与可见光吸收能力密切相关。纳米结构的BiVO4光催化剂由于粒径较大，光学带隙减小，光降解能力增强，水热反应时间缩短。讨论了纳米BiVO4光催化降解MB的潜在机理。本研究为光催化材料的智能设计和控制合成提供了一种实用有效的方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Materials Science: Materials in Electronics 工程技术-材料科学：综合

CiteScore

5.00

自引率

7.10%

发文量

1931

审稿时长

2 months

期刊介绍： The Journal of Materials Science: Materials in Electronics is an established refereed companion to the Journal of Materials Science. It publishes papers on materials and their applications in modern electronics, covering the ground between fundamental science, such as semiconductor physics, and work concerned specifically with applications. It explores the growth and preparation of new materials, as well as their processing, fabrication, bonding and encapsulation, together with the reliability, failure analysis, quality assurance and characterization related to the whole range of applications in electronics. The Journal presents papers in newly developing fields such as low dimensional structures and devices, optoelectronics including III-V compounds, glasses and linear/non-linear crystal materials and lasers, high Tc superconductors, conducting polymers, thick film materials and new contact technologies, as well as the established electronics device and circuit materials.