Ali Nisar, Zaman Hira, Bilal Muhammad, Shah Anwar-Ul-Haq Ali, Nazir Muhammad Shahzad, Iqbal Hafiz M N
Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, National & Local Joint Engineering Research Center for Deep Utilization Technology of Rock-salt Resource, Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, China.
Institute of Chemical Sciences, University of Peshawar, Pakistan.
Sci Total Environ. 2019 Jun 20;670:523-538. doi: 10.1016/j.scitotenv.2019.03.209. Epub 2019 Mar 19.
Aquatic ecosystem contaminated with toxic pollutants and heavy metals due to the rapid growth of industrialization has become a top-priority global concern exhibiting highly adverse effects on human health and the environment. Many treatment techniques have been envisioned for the removal of these toxic contaminants from the aqueous environment. Among these techniques, magnetic separation has attracted burgeoning research attention owing to its simplicity, eco-friendly nature, large surface area, electron mobility, and excellent performance for removing water contaminants. In particular, interfacial active nanoparticles and nanocomposites with unique structures and magnetic properties are considered as ideal provides candidates in material science for next-generation water treatment. This review gives an insight into current research activities associated with the synthesis strategies and applications of interfacially active and magnetically responsive nanomaterials and nanocomposites for sustainable purification processes. In the first half, various synthesis routes for magnetic iron oxide nanoparticles development and the corresponding formation mechanism are summarized. In the second half, we reviewed the magnetic and wettability properties of interfacially active and magnetically responsive nanocomposites and their environmental applications including oil-water separation, removal of hazardous dye-based pollutants and potentially toxic heavy metals. Finally, the review is wrapped up with major concluding remarks and future perspectives of these magnetic nanoscale composite materials for sustainable wastewater remediation.
由于工业化的快速发展，受有毒污染物和重金属污染的水生生态系统已成为全球首要关注的问题，对人类健康和环境产生了极为不利的影响。人们设想了许多处理技术来从水环境中去除这些有毒污染物。在这些技术中，磁分离因其操作简单、环保、比表面积大、电子迁移率高以及去除水中污染物的优异性能而吸引了越来越多的研究关注。特别是，具有独特结构和磁性的界面活性纳米粒子和纳米复合材料被认为是材料科学中下一代水处理的理想候选材料。本文综述了与界面活性和磁响应纳米材料及纳米复合材料的合成策略和应用相关的当前研究活动，以实现可持续的净化过程。在前半部分，总结了磁性氧化铁纳米粒子的各种合成路线及其相应的形成机制。在后半部分，我们综述了界面活性和磁响应纳米复合材料的磁性和润湿性及其环境应用，包括油水分离、去除有害的染料基污染物和潜在有毒重金属。最后，本文以这些磁性纳米复合材料在可持续废水修复方面的主要结论和未来展望作为结尾。
