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Environmental Applications of Engineered Materials with Nanoconfinement
ACS ES&T Engineering Pub Date : 2021-03-10 , DOI: 10.1021/acsestengg.1c00007
Shuo Zhang 1 , Tayler Hedtke 1 , Xuechen Zhou 1 , Menachem Elimelech 1 , Jae-Hong Kim 1
Affiliation  

Engineered nanoporous materials have been extensively employed in the environmental field to take advantage of increased surface area and tunable size exclusion. Beyond those benefits, recent studies have uncovered that the confinement of traditional environmental processes within several nanometer pores exerts unique nanoconfinement effects, such as enhanced adsorption capacity, reaction kinetics, and ion selectivity, compared to their analogous processes without spatial confinement. In this review, we provide a systematic discussion covering the current understanding of nanoconfinement effects reported across diverse fields using similar materials and structures as those being explored in environmental technologies. We further abstract the underlying fundamental physical and chemical principles including molecular orientation and rearrangement, reactive center creation, noncovalent binding, and partial desolvation. Finally, we establish connections between promising nanoconfinement observations and traditional environmental processes to identify challenges and opportunities for the development of innovative functional platforms for environmental applications.

中文翻译:

纳米约束工程材料的环境应用

工程纳米多孔材料已在环境领域得到广泛采用,以利用增加的表面积和可调的尺寸排他性。除了这些好处之外,最近的研究还发现,与没有空间限制的类似过程相比,将传统的环境过程限制在几个纳米孔内可发挥独特的纳米限制作用,例如增强的吸附能力,反应动力学和离子选择性。在这篇综述中,我们提供了系统的讨论,涵盖了使用与环境技术中所探索的材料和结构相似的材料和结构,跨领域报道的纳米限制效应的最新理解。我们进一步抽象出了基本的基本物理和化学原理,包括分子取向和重排,反应中心的建立,非共价结合和部分去溶剂化。最后,我们在有前途的纳米约束观测与传统环境过程之间建立联系,以识别为环境应用开发创新功能平台的挑战和机遇。
更新日期:2021-04-09
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