Preparation of versatile yolk-shell nanoparticles with a precious metal yolk and a microporous polymer shell for high-performance catalysts and antibacterial agents
Preparation of versatile yolk-shell nanoparticles with a precious metal yolk and a microporous polymer shell for high-performance catalysts and antibacterial agents
复制标题
具有贵金属蛋黄和微孔聚合物壳的多功能蛋黄壳纳米粒子的制备，用于高性能催化剂和抗菌剂
DOI：
10.1016/j.polymer.2017.12.069
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发表时间：
2018-02-14
期刊：
影响因子：
4.6
通讯作者：
Wu, Dingcai
中科院分区：
文献类型：
--
作者：
Du, Yang;Huang, Zhike;Wu, Dingcai
成功研制了一类新型的蛋黄壳结构的贵金属@微孔聚合物纳米粒子。通过超交联获得的聚合物壳呈现良好的永久微孔性、可控的厚度和良好的机械性能，因此可以用于保护包括Au和Ag纳米颗粒的贵金属蛋黄免于聚集和失活。结果表明，与未加保护的Au纳米粒子相比，Au@微孔聚合物纳米粒子不仅对硝基苯和对硝基苯酚的催化还原具有更高的利用效率，而且循环寿命更长。Ag@微孔聚合物纳米颗粒表现出高效和持久的抗菌性能，因为微孔壳使纳米颗粒能够以长期的方式将Ag+从Ag蛋黄释放到溶液中。我们希望我们的多功能蛋黄壳纳米颗粒将提供一个新的思路来解决蛋黄壳材料的结构问题，从而为一系列应用提供一个很好的机会，包括医药，催化，能源，吸附和环境。(c)2018爱思唯尔有限公司版权所有。
A new class of yolk-shell structured precious metal@microporous polymer nanoparticles has been successfully developed. The polymer shells obtained by hypercrosslinking present well-developed permanent microporosity, controllable thickness, and good mechanical properties, and thus can be utilized to protect the precious metal yolks including Au and Ag nanoparticles from aggregation and inactivation. As a result, compared with unprotected Au nanoparticles, Au@microporous polymer nanoparticles not only present a higher utilization efficiency for the catalytic reduction of nitrobenzene and 4-nitrophenol, but also have a much longer cycling life. Ag@microporous polymer nanoparticles demonstrate highly efficient and long-lasting antibacterial properties, since the microporous shells enable the nanoparticles to release Ag+ from the Ag yolk to the solution in a long-term manner. We hope that our versatile yolk-shell nanoparticles will offer a new thought to solve the structural problems of yolk-shell materials, and thus provide a great opportunity for a spectrum of applications including medicine, catalysis, energy, adsorption and environment. (c) 2018 Elsevier Ltd. All rights reserved.