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

页码：378 / 382

页数：5

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