Physical Chemistry TU Dresden , Zellescher Weg 19 , 01062 Dresden , Germany.
Leibniz-Institut für Polymerforschung Dresden , Hohe Straße 6 , 01069 Dresden , Germany.
ACS Appl Mater Interfaces. 2019 Sep 11;11(36):32937-32944. doi: 10.1021/acsami.9b06128. Epub 2019 Aug 29.
Environmental contamination is a major global challenge, and the effects of contamination are found in most habitats. In recent times, the pollution by microplastics has come to the global attention and their removal displays an extraordinary challenge with no reasonable solutions presented so far. One of the new technologies holding many promises for environmental remediation on the microscale are self-propelled micromotors. They present several properties that are of academic and technical interest, such as the ability to overcome the diffusion limitation in catalytic processes, as well as their phoretic interaction with their environment. Here, we present two novel strategies for the elimination of microplastics using photocatalytic Au@Ni@TiO-based micromotors. We show that individual catalytic particles as well as assembled chains show excellent collection and removal of suspended matter and microplastics from environmental water samples.
环境污染是一个全球性的重大挑战，污染的影响在大多数栖息地都能找到。最近，微塑料污染引起了全球关注，但其清除工作极具挑战性，目前尚无合理的解决方案。自推进微马达是一种在微尺度环境修复方面具有广阔前景的新技术。它们具有一些学术和技术上的有趣特性，例如能够克服催化过程中的扩散限制，以及与环境的趋流相互作用。在这里，我们提出了两种使用基于 Au@Ni@TiO 的光催化微米马达来消除微塑料的新策略。我们表明，单个催化颗粒以及组装成的链条都能极好地从环境水样中收集和去除悬浮物和微塑料。
