BiFeO₃ as a Next-Generation Photocatalyst: Bridging Material Design with Environmental Remediation.

IF 2.3 3区 化学 Q3 CHEMISTRY, PHYSICAL
Devender Jalandhara, Sanjeev Kumar, Sandeep Kumar, Rekha M M, S V Sharma, Sandeep Kaushal
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Abstract

Bismuth ferrite (BiFeO₃) is a multiferroic perovskite material with a narrow band gap (~2.1 eV), demonstrating significant potential as a photocatalyst for environmental remediation and sustainable energy applications. Its photocatalytic capabilities include dye degradation, air purification, wastewater treatment, and hydrogen generation, all driven by its ability to harness visible light. This review critically examines the factors influencing the photocatalytic performance of BiFeO₃ (BFO) and its doped derivatives. Advances in synthesis techniques, such as sol-gel, hydrothermal, and combustion methods, are discussed concerning particle size, crystallinity, and surface modifications. Key strategies, including rare earth element doping, heterostructure formation, and co-catalyst integration, are explored for their role in enhancing charge separation and light absorption, achieving efficiency improvements of over 90 % in some cases. The mechanistic pathways of photocatalysis, with a focus on electron-hole dynamics and radical generation, are analyzed to provide deeper insights into material performance. Despite its potential, challenges such as limited stability and rapid recombination rates persist. This review identifies critical research gaps and proposes directions for optimizing BFO's design and scalability, reinforcing its relevance as a next-generation photocatalyst for addressing global environmental and energy challenges.

新一代光催化剂BiFeO₃:具有环境修复作用的桥接材料设计
铋铁氧体(BiFeO₃)是一种多铁钙钛矿材料,具有窄带隙(~2.1 eV),具有作为环境修复和可持续能源应用的光催化剂的巨大潜力。它的光催化能力包括染料降解、空气净化、废水处理和制氢,所有这些都是由它利用可见光的能力驱动的。本文综述了影响BiFeO₃(BFO)及其掺杂衍生物光催化性能的因素。讨论了溶胶-凝胶法、水热法和燃烧法等合成技术的进展,包括粒径、结晶度和表面修饰。关键策略,包括稀土元素掺杂、异质结构形成和共催化剂集成,探索了它们在增强电荷分离和光吸收方面的作用,在某些情况下实现了90%以上的效率提高。光催化的机理途径,重点是电子-空穴动力学和自由基的产生,分析了材料性能的更深入的见解。尽管其潜力巨大,但稳定性有限、重组速度快等挑战依然存在。本综述指出了关键的研究空白,并提出了优化BFO设计和可扩展性的方向,以加强其作为下一代光催化剂的相关性,以应对全球环境和能源挑战。
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
Chemphyschem
Chemphyschem 化学-物理:原子、分子和化学物理
CiteScore
4.60
自引率
3.40%
发文量
425
审稿时长
1.1 months
期刊介绍: ChemPhysChem is one of the leading chemistry/physics interdisciplinary journals (ISI Impact Factor 2018: 3.077) for physical chemistry and chemical physics. It is published on behalf of Chemistry Europe, an association of 16 European chemical societies. ChemPhysChem is an international source for important primary and critical secondary information across the whole field of physical chemistry and chemical physics. It integrates this wide and flourishing field ranging from Solid State and Soft-Matter Research, Electro- and Photochemistry, Femtochemistry and Nanotechnology, Complex Systems, Single-Molecule Research, Clusters and Colloids, Catalysis and Surface Science, Biophysics and Physical Biochemistry, Atmospheric and Environmental Chemistry, and many more topics. ChemPhysChem is peer-reviewed.
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