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- W2354311392 abstract "A adsorption system was applied to study the adsorption of Ca(Ⅱ) ion onto chitosan derivatives,The adsorption isotherms were correlated by dc/dt=-kcn.By means of linear correlation,the shapes of the isotherm curves were similar to the kinetic function of 1/c=kt and the rate equation was dc/dt=-kc2,indicating that the chemical sorption was the rate-limiting step.13CNMR and WXRD characterized the chemical structures of chitosan α-ketoglutaric acid(KCTS) and hydroxamated chitosan α-ketoglutaric acid(HKCTS).The adsorption mechanism of chitosan derivatives with Ca(Ⅱ) was studied by IR and XPS.The results indicated that the nitrogen in —NH— of KCTS were coordination atoms.N atom of amino group,O atom of hydroxamic acid and O atom of carbonyl group in HKCTS coordinated with Ca(Ⅱ)." @default.
- W2354311392 created "2016-06-24" @default.
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- W2354311392 date "2008-01-01" @default.
- W2354311392 modified "2023-09-23" @default.
- W2354311392 title "Studies on kinetics and mechanism of chelating reaction chitosan derivatives with Ca(II) ions" @default.
- W2354311392 hasPublicationYear "2008" @default.
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