Ionic liquid-assisted synthesis of highly branched Ag:AgCl hybrids and their photocatalytic activity

被引：18
作者：
Lee, Ho Seok [1 ]
Kim, Jong Eun [2 ]
Kim, TaeYoung [3 ]
Suh, Kwang S. [1 ]
机构：
[1] Korea Univ, Dept Mat Sci & Engn, Seoul 136713, South Korea
[2] InsCon Tech Co Ltd, R&D Team, Hwaseong Si 445 924, Gyeonggi Do, South Korea
[3] Gachon Univ, Dept Bionanotechnol, Songnam 461701, Gyeonggi Do, South Korea
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 621卷
关键词：
Silver; Silver chloride; Photocatalyst; Ionic liquid; Shape control; SHAPE-CONTROLLED SYNTHESIS; AG-AT-AGCL; VISIBLE-LIGHT; STABLE PHOTOCATALYST; OPTICAL-PROPERTIES; EFFICIENT; NANOPARTICLES; NANOSTRUCTURES; GOLD; NANOCRYSTALS;
D O I：
10.1016/j.jallcom.2014.09.222
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We report on a polyol synthesis of highly branched hybrid crystals of Ag and AgCl (Ag:AgCl) using ionic liquid of 1-butyl-3-imidazolium chloride as a precursor and an efficient shape controlling agent. By rationally varying the concentration of ionic liquid, we achieved the control over structure and morphology of Ag:AgCl hybrid crystals in a way to have multi-arms grown from the corners of cubic seed particles. The formation of Ag:AgCl octapods relies on the preferential overgrowth on {1 1 1} facets of cubic seeds, enabled by the selective adsorption of imidazolium-based ionic liquids on {1 1 0} facets. The obtained Ag:AgCl octapods exhibited enhanced photocatalytic activity for degradation of methylene blue under visible light irradiation, compared with those with cubic morphologies. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：378 / 382
页数：5
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