Preparation and characterization of polyacrylamide /palygorskite

Polyacrylamide/palygorskite(PAM/PA) as prepared by solution polymerization of acrylamide (AM) on the γ-methacryloxypropyl trimethoxy-silane (KH-570) modified palygorskite (PA). The influence of monomer concentration, polymerization time, initiator concentration and polymerization temperature on merc...

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Bibliographic Details
Published in:Applied clay science 2009-10, Vol.46 (2), p.148-152
Main Authors: Chen, Yan, Zhao, Yijiang, Zhou, Shouyong, Chu, Xiaozhong, Yang, Lianli, Xing, Weihong
Format: Article
Language:English
Subjects:
Acrylamide
Adsorption
Earth sciences
Earth, ocean, space
Exact sciences and technology
Grafting
Mercury
Mineralogy
Palygorskite
Silane coupling agents
Silicates
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Summary:Polyacrylamide/palygorskite(PAM/PA) as prepared by solution polymerization of acrylamide (AM) on the γ-methacryloxypropyl trimethoxy-silane (KH-570) modified palygorskite (PA). The influence of monomer concentration, polymerization time, initiator concentration and polymerization temperature on mercury adsorption of PAM/PA was investigated. The maximum adsorption capacity was 135.5 mg/g at optimum polymerization conditions. PAM/PA was characterized by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD).
ISSN:0169-1317
1872-9053
DOI:10.1016/j.clay.2009.07.018