Kamel Ayman H, Abd-Rabboh Hisham S M, Abd El-Fattah Ahmed, Boudghene Stambouli Ghizlene, Adeida Lina
Department of Chemistry, College of Science, University of Bahrain Zallaq P. O. Box 32038 Bahrain
Department of Chemistry, Faculty of Science, Ain Shams University Cairo 11566 Egypt
RSC Adv. 2025 Mar 3;15(9):6875-6901. doi: 10.1039/d4ra08149h. eCollection 2025 Feb 26.
Metal oxide nanoparticles and their composites have garnered significant attention in water treatment and environmental cleanup due to their unique physicochemical properties. These materials exhibit distinct crystalline structures, tunable morphologies, large surface areas, versatile surface chemistry, and widespread availability. These features make nanostructured metal oxides and their composites highly effective for the selective removal of organic pollutants from the environment, either by adsorption or photodegradation. This article focuses on recent advances, challenges, and opportunities in the use of metal oxides and their composites for the targeted removal of organic contaminants, including insecticides, phenolic compounds, organic dyes, and similar pollutants. The discussion encompasses a broad range of metal oxides and their composites, highlighting their diverse structural, crystallographic, and morphological characteristics that influence their adsorption and photocatalytic performance. Emphasis is placed on the photocatalytic and adsorptive capabilities of these materials, including their photo-stimulation properties and mechanisms. Metal oxides are highlighted as outstanding photocatalysts due to their high photodegradation efficiency, cost-effective synthesis methods, and optimized bandgap engineering. This review serves as a valuable resource for researchers exploring the photocatalytic and adsorptive applications of metal oxide-based materials, particularly in the remediation of hazardous organic pollutants such as pesticides.
金属氧化物纳米颗粒及其复合材料因其独特的物理化学性质，在水处理和环境净化领域受到了广泛关注。这些材料具有独特的晶体结构、可调控的形态、较大的表面积、多样的表面化学性质以及广泛的可获取性。这些特性使得纳米结构的金属氧化物及其复合材料通过吸附或光降解作用，对从环境中选择性去除有机污染物非常有效。本文重点关注金属氧化物及其复合材料在靶向去除有机污染物（包括杀虫剂、酚类化合物、有机染料和类似污染物）方面的最新进展、挑战和机遇。讨论涵盖了广泛的金属氧化物及其复合材料，突出了它们多样的结构、晶体学和形态学特征，这些特征影响着它们的吸附和光催化性能。重点强调了这些材料的光催化和吸附能力，包括它们的光激发特性和机制。由于金属氧化物具有高光降解效率、经济高效的合成方法以及优化的带隙工程，因此被视为杰出的光催化剂。这篇综述为探索基于金属氧化物材料的光催化和吸附应用的研究人员提供了宝贵的资源，特别是在修复农药等有害有机污染物方面。
