期刊
MACROMOLECULAR RESEARCH
卷 23, 期 1, 页码 21-29出版社
POLYMER SOC KOREA
DOI: 10.1007/s13233-015-3010-8
关键词
poly(vinyl alcohol); silica; Hg(II) removal
资金
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology [2013R1A1A 2A10063466]
- Korea Ministry of Environment as GAIA project
A low-cost and environment friendly route towards the synthesis of poly(vinyl alcohol)/silica composites is presented. The silica-based composites were synthesized by hydrolytic and dehydroxylation polymerization of a silica precursor, tetrakis(2-hydroxyethyl) orthosilicate by sol-gel method within a poly(vinyl alcohol) matrix. Calcination of the composites at 300 degrees C resulted in mesoporous silica that exhibited excellent Hg(II) adsorption at pH 6.5, and the materials were characterized using FTIR, XRD, TGA-DTA, and SEM analyses. The adsorption data best fitted the Langmuir isotherm; Q(max) for the adsorbent was 113.63 mg.g(-1). The adsorption followed pseudo-second-order kinetics with a rate constant of 6.16x10-4 g.mg(-1).min(-1). The biocompatibility feature of the synthesized adsorbent materials makes it a potential candidate for biological applications such as enzyme immobilization, opto-electronics, and sensors.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据