Haruna A, Abdulkadir I, Idris S O
Department of Chemistry, Ahmadu Bello University, Zaria, Nigeria.
Heliyon. 2020 Jan 17;6(1):e03237. doi: 10.1016/j.heliyon.2020.e03237. eCollection 2020 Jan.
The studies of advanced materials in environmental remediation and degradation of pollutants is rapidly advancing because of their wide varieties of applications. BiFeO (BFO), a perovskite nanomaterial with a rhombohedral space group, is currently receiving tremendous attention in photodegradation of dyes. The photocatalytic activity of BFO nanoparticle is a promising field of research in photocatalysis. BFO nanomaterial is a photocatalyst enhanced by doping because of its reduce bandgap energy (2.0-2.77 eV), multiferroic property, strong photoabsorption and crystal structure. The material has proven to be very useful for the degradation of dyes under visible light irradiation among other photocatalysts. Its exceptional nontoxicity, suitability, low cost and long term excellent stability makes it an efficient photocatalyst for the degradation of effluents from textile and pharmaceutical industries which ended-up in the environment and now a major concern of the modern world. This mini-review attempts to provide some detailed synthetic routes of BFO and BFO related nanomaterials and the notable achievements so far on the effect of doping the material. It also discusses the effect of crystallite size of the material and other photophysical properties and how they influence the photocatalytic process of model organic dye pollutants, to date.
由于先进材料在环境修复和污染物降解方面有着广泛的应用，其相关研究正在迅速发展。BiFeO（BFO）是一种具有菱面体空间群的钙钛矿纳米材料，目前在染料的光降解方面受到了极大的关注。BFO纳米颗粒的光催化活性是光催化领域一个很有前景的研究方向。BFO纳米材料因其降低的带隙能量（2.0 - 2.77 eV）、多铁性、强光吸收和晶体结构，是一种通过掺杂增强的光催化剂。与其他光催化剂相比，该材料已被证明在可见光照射下对染料的降解非常有效。其特殊的无毒、适用性强、低成本和长期优异的稳定性使其成为降解纺织和制药行业排放到环境中的废水的高效光催化剂，而这些废水如今已成为现代社会的一个主要问题。本综述试图提供一些详细的BFO及与BFO相关的纳米材料的合成路线，以及迄今为止在掺杂该材料的效果方面取得的显著成就。它还讨论了材料微晶尺寸和其他光物理性质的影响，以及它们迄今为止如何影响典型有机染料污染物的光催化过程。
