期刊
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
卷 18, 期 1, 页码 24-28出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2011.11.115
关键词
Polypyrrole; Heavy metal extraction; Nanocomposite; Porous material; BET surface area
资金
- Kyung Hee University [KHU-20100182]
A simple fabrication method for a polypyrrole (PPy)/silica nanocomposite with a cratered surface using templated synthesis is described. This nanocomposite was prepared by a modified silica-templated oxidation/polymerization of pyrrole in the presence of FeCl3 oxidant and was characterized by various methods, including Fourier-transform infrared spectroscopy; BET specific surface area; and transmission electron microscopy (TEM). The PPy/silica nanocomposite with surface craters looked like a golf ball in TEM images. The highest BET surface area of PPy/silica nanocomposite with craters was 306 m(2)/g at 4 mL silica sol solution (Ludox SM-30) loading through the fabrication process, whereas a PPy/silica nanocomposite without craters had a specific surface area of only 85 m(2)/g with no Ludox SM-30 introduced. In addition, the material's adsorption capacity for heavy metal ions (Hg2+, Ag+, and Pb2+) and its recycling mechanism were investigated. Crown Copyright (C) 2011 Published by Elsevier B.V. on behalf of The Korean Society of Industrial and Engineering Chemistry. All rights reserved.
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