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- W2385705943 abstract "Objective To study the influencing factors of adsorption action of chitosan for copper ion in water and analysis by infrared spectroscopy. Methods Different initial concentration(0.1, 0.3, 0.5, 0.3 and 0.5 g/L) of the copper sulfate solution(pH value of 2.0, 2.0, 3.0, 5.0 and 6.0) 0.03 L and chitosan dose(0.05, 0.10, 0.15, 0.20, 0.25 and 0.30 g) were taked under the conditions of 20 ℃, 120 min adsorption by horizontal vibrating in 350 r/min. Response surface methodology was used to investigate the adsorption ratio of Cu2+ion. The adsorption principle of chitosan was analyzed by infrared spectroscopy. Results The optimum conditions for the copper adsorption were found to be pH 5,initial concentration of the copper sulfate solution of 0.38 g/L and chitosan dose of 3.33 g/L,respectively,for initial solution pH,initial Cu2 +ions concentration and chitosan dose. The functional groups of chitosan which were —C—,—CH2 OH,O—CH and C==O played major roles in adsorption of Cu2+ion. Conclusion There were the synergy between initial solution pH and chitosan dose, antagonism between initial solution pH and initial Cu2+ions concentration. The carbohydrate and protein portion of chitosan play major roles in the adsorption of Cu2+ ions,which shows that chemical and physical joint adsorption exists in it." @default.
- W2385705943 created "2016-06-24" @default.
- W2385705943 creator A5067861359 @default.
- W2385705943 date "2013-01-01" @default.
- W2385705943 modified "2023-09-26" @default.
- W2385705943 title "Influencing factors of adsorption action of chitosan for copper ion in water and analysis by infrared spectroscopy" @default.
- W2385705943 hasPublicationYear "2013" @default.
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