Comparison of adsorptive features between silver ion and silver nanoparticles on nanoporous materials

被引：13

作者：

Sim, Jae Hoon ^{[1
]}

Umh, Ha Nee ^{[1
]}

Shin, Hyeon Ho ^{[1
]}

Sung, Hwa Kyung ^{[1
]}

Oh, Seung Yeon ^{[1
]}

Lee, Byung-Cheun ^{[2
]}

Rengaraj, Selvaraj ^{[3
]}

Kim, Younghun ^{[1
]}

机构：

[1] Kwangwoon Univ, Dept Chem Engn, Seoul 139701, South Korea

[2] Natl Inst Environm Res, Inchon 404708, South Korea

[3] Sultan Qaboos Univ, Dept Chem, Muscat 123, Oman

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2014年 / 20卷 / 05期

基金：

新加坡国家研究基金会;

关键词：

Porous materials; Removal of silver; Silver nanoparticles; Silver ion; Adsorption; MESOPOROUS ALUMINA; TEMPLATING METHOD; AQUEOUS-SOLUTION; WASTE-WATER; REMOVAL; RELEASE; ADSORBENTS; PARTICLES; CHEMISTRY; KINETICS;

D O I：

10.1016/j.jiec.2013.11.019

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The removal of Ag+ or AgNPs released from nano-products or effluent of WTP is important to reduce the potential risk of AgNPs. In this work, we prepared bimodal nanoporous silica (BNS) to compare the removal efficiency of Ag+ and AgNP with unimodal nanoporous silica (NS). To determine the adsorption capacity of Ag+ and AgNPs on NS and BNS, isotherm and kinetics studies was carried out at different concentrations. The results showed BNS with a bimodal nanoporous structure and a large external surface showed a higher uptake capacity and faster adsorption rate. (C) 2013 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：2864 / 2869

页数：6

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