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Microwave-assisted Functionalization of Poly(ethylene glycol) and On-resin Peptides for Use in Chain Polymerizations and Hydrogel Formation
Published on: October 29, 2013
Chemical degradation of polyacrylamide by advanced oxidation processes
Mang Lu1, Xuejiao Wu, Xiaofang Wei
1School of Materials Science and Engineering, Jingdezhen Ceramic Institute, Taoyang Road, Jingdezhen 333001, Jiangxi Province, China. bjlumang@hotmail.com
Abstract:
This paper presents the results obtained from the oxidation of polyacrylamide (PAM) by the UV/H2O2, Fenton, UV/Fenton, visible light/Fenton, visible light/Fenton/C2O4(2-), UV/Fenton/C2O4(2-), visible light/Fenton/C4H4O6(2-) and UV/Fenton/C4H4O6(2-) processes. Degradation efficiency for PAM had the following order: UV/Fenton/C4H4O6(2-) > UV/Fenton/C2O4(2-) > visible light/Fenton/C4H4O6(2-) > visible light/Fenton/C2O4(2-) > UV/Fenton > visible light/Fenton > UV/H2O2 > Fenton. The addition of tartrate had a positive effect on chemical oxygen demand (COD) removal. Increasing the concentrations of reagents promoted the oxidation of PAM by the UV/Fenton/C4H4O6(2-) process. The presence of NaCl led to large decreases in the COD removal in the PAM solution.
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