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Recent developments in usage of fluorine-free nano structured materials in oil-water separation: A review
Surfaces and Interfaces ( IF 6.2 ) Pub Date : 2021-09-15 , DOI: 10.1016/j.surfin.2021.101455
Vignesh Mohan PV 1 , Vamsi Krishna Kudapa 1
Affiliation  

In recent years, significant oil spills and organic solvent contamination are harming ocean habitats and endangering aquatic species. Separating the toxic oil substances from water using a type of coating that is sustainable and easily safe is the main aim of researchers. The superhydrophobic coating without flourine is the alternative approach that is being developed since several years as fluorine is harmful to nature. It resulted in substantial endeavors in constructing a substance with a higher oil adsorption power, a straightforward implementation in oil-water segregation, and excellent stability in oil-water with outstanding recycling. The two main aspects while fabricating a superhydrophobic coating on a substrate are wettability and the oil-water separation performance. The whole analysis summarizes the material for oil-water segregation in recent times which are sustainable, including their adsorption performance and filtering, and has manoeuvrable wettable segregation technology. The chemical element fluorine is one of the microelements needed to develop living organisms when absorbed in tiny quantities properly and it is toxic when present in an excessive amount. Fluorine is considered an environmental pollutant with adverse effects in people and animals on diverse organisms. Fluoride elements in living organism functions as an enzyme poison that inhibits enzyme activity and eventually breaks down critical metabolic functions. However, most of the techniques documented so far include high prices or complex procedures and severe environments, limiting the processing of flexible substrates. Therefore, easy, quick, low-cost, environmentally friendly methods for hydrophobic surfaces having controlled morphology continue to be developed to extend their industrial uses. We report herein on the production of hydrophobic coatings based chiefly on the deposition of biocompatibility products with various nanoparticles to overcome this gap and meet the green requirements. Consequently, this fabrication process has been thought to be necessary, practical, and achievable for the manufacturing of superhydrophobic surfaces for use in commercial processes. This review paper also mentions the simple hypothesis that has already developed which would help to understand the surface-specific wettability.



中文翻译:

无氟纳米结构材料在油水分离中应用的最新进展:综述

近年来,严重的石油泄漏和有机溶剂污染正在危害海洋栖息地并危及水生物种。研究人员的主要目标是使用一种可持续且易于安全的涂层将有毒油物质与水中分离。不含氟的超疏水涂层是多年来开发的替代方法,因为氟对自然有害。它导致在构建具有更高吸油能力、直接实现油水分离、在油水中具有优异稳定性且具有出色回收利用的物质方面付出了巨大的努力。在基材上制造超疏水涂层的两个主要方面是润湿性和油水分离性能。整体分析总结了近年来可持续的油水分离材料,包括其吸附性能和过滤性能,并具有可操作的可湿分离技术。化学元素氟是微量元素被适当吸收时发育生物体所需的微量元素之一,过量存在时会产生毒性。氟被认为是一种环境污染物,对人和动物的各种生物都有不利影响。生物体中的氟元素作为酶毒物发挥作用,抑制酶的活性并最终破坏关键的代谢功能。然而,迄今为止记录的大多数技术包括高昂的价格或复杂的程序和恶劣的环境,限制了柔性基板的加工。因此,容易,用于具有受控形态的疏水表面的快速、低成本、环境友好的方法不断被开发以扩展其工业用途。我们在此报告主要基于具有各种纳米粒子的生物相容性产品的沉积以克服这一差距并满足绿色要求的疏水涂层的生产。因此,这种制造过程被认为是制造用于商业过程的超疏水表面所必需的、实用的和可实现的。这篇评论论文还提到了已经发展起来的简单假设,这将有助于理解特定于表面的润湿性。我们在此报告主要基于具有各种纳米粒子的生物相容性产品的沉积以克服这一差距并满足绿色要求的疏水涂层的生产。因此,这种制造过程被认为是制造用于商业过程的超疏水表面所必需的、实用的和可实现的。这篇评论论文还提到了已经发展起来的简单假设,这将有助于理解特定于表面的润湿性。我们在此报告了主要基于生物相容性产品与各种纳米粒子的沉积以克服这一差距并满足绿色要求的疏水涂层的生产。因此,这种制造过程被认为是制造用于商业过程的超疏水表面所必需的、实用的和可实现的。这篇评论论文还提到了已经发展起来的简单假设,这将有助于理解特定于表面的润湿性。并且可用于制造用于商业过程的超疏水表面。这篇评论论文还提到了已经发展起来的简单假设,这将有助于理解特定于表面的润湿性。并且可用于制造用于商业过程的超疏水表面。这篇评论论文还提到了已经发展起来的简单假设,这将有助于理解特定于表面的润湿性。

更新日期:2021-09-21
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