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The synthesis of humic acids graft copolymer and its adsorption for organic pesticides
Chengjian Yang,Qingru Zeng,Yang Yang,Ruiyang Xiao,Yunzhong Wang,Hui Shi 한국공업화학회 2014 Journal of Industrial and Engineering Chemistry Vol.20 No.3
humic acid graft copolymer (PSt-g-HA) was prepared by graft copolymerization of Humic acid (HA) withstyrene and the sorption of three selected organic pesticides, parathion-methyl, carbaryl and carbofuranby PSt-g-HA acid and untreated humic were also examined, respectively. The PSt-g-HA had relativelyhigh aromatic carbons content because the grafted copolymerization of polystyrene entered intocondensed domains in HA, whereas the removal of the polar function groups, such as carboxyl andphenolic hydroxyl group, was performed. For above reasons, the sorption capacity of three organicpesticides (parathion-methyl, carbaryl and carbofuran) on PSt-g-HA increased by 64.1% to 95.2%.