Preparation and characterization of polyacrylamide/palygorskite |
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| Authors: | / |
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| Affiliation: | aSchool of Chemistry and Chemical Engineering, Huaiyin Normal University, Key Lab for Chemistry of Low-Dimensional Materials of Jiangsu Province, No.111 Changjiang West Road, Huaian 223300, Jiangsu Province, PR China;bState Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, No.5 Xinmofan Road, Nanjing 210009, Jiangsu Province, PR China |
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| Abstract: | 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). |
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| Keywords: | Acrylamide Grafting Mercury Adsorption Palygorskite Silane coupling agents |
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