A new sustainable approach towards preparation of sunlight active Ag/AgBr Janus nanoparticles using non-toxic surface active ionic liquid
A new sustainable approach towards preparation of sunlight active Ag/AgBr Janus nanoparticles using non-toxic surface active ionic liquid
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DOI：
10.1039/c9ta00178f
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发表时间：
2019-03-14
影响因子：
11.9
通讯作者：
Kang, Tejwant Singh
中科院分区：
文献类型：
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作者：
Singh, Gurbir;Komal;Kang, Tejwant Singh
在太阳光或白光下制备对称性可控纳米材料是一项具有挑战性的任务，开发一种温和且易于实现的方法是一个具有挑战性的任务。单步策略和在阳光下的水条件下利用最低限度的化学品是这类产品的第一个例子。在本论文中，首次通过控制对称性破缺，在太阳光下用含烟碱基无毒表面活性离子液体(SAIL)的AgNO3水溶液(SAIL)在不到一分钟的时间内制备了具有光催化活性的Ag/AgBrJanus纳米颗粒(JNPs)。所使用的SAIL不仅提供了所需的BR-，而且还起到了稳定剂和光还原的辅助作用。因此，所制备的JNPs在太阳光下对罗丹明B的光降解和对硝基苯酚的还原都表现出了良好的催化活性。
The development of benign and easily implementable methods for preparation of symmetry controlled nano-materials for catalytic applications under sunlight or white light is a challenging task. A single step strategy and utilization of minimal chemicals under aqueous conditions under sunlight represents the first example of its kind. Herein, photocatalytically active Ag/AgBr Janus nanoparticles (JNPs) are prepared by irradiation of aqueous AgNO3 containing nicotinium based non-toxic surface active ionic liquid (SAIL) having Br- as a counter-ion under sunlight, in less than a minute, via controlled symmetry breaking, for the first time. The utilized SAIL not only provides the required Br- but also acts as a stabilizing agent and aids in photo-reduction. Thus the prepared JNPs exhibit excellent catalytic activity for photo-degradation of rhodamine-B under sunlight along with reduction of 4-nitrophenol.