摘要
Chitosan and chitosan membranes with Pb(Ⅱ) ion as template were studied. The adsorption isotherms were correlated by dc/dt=-kcn at the temperature of 30 ℃, 35 ℃, 40 ℃, 45 ℃, 50 ℃. By means of linear correlation, the shapes of the isotherm curves were similar to the kinetic function of 2/C=-kt and the apparent activation energy for with chitosan(123.8 kJ·moL-1) was larger than that of membrane with Pb(Ⅱ) ion(92.3 kJ·moL-1). The chitosan membrane with Pb(Ⅱ) ion template was better "memory" function. The adsorption mechanism of chitosan with Pb(Ⅱ) was studied by IR and XPS. The results indicated that the nitrogen in-NH2 and the oxygen in C3-OH of chitosan were coordination atoms.
Chitosan and chitosan membranes with Pb(Ⅱ) ion as template were studied. The adsorption isotherms were correlated by dc/dt=-kcn at the temperature of 30 ℃, 35 ℃, 40 ℃, 45 ℃, 50 ℃. By means of linear correlation, the shapes of the isotherm curves were similar to the kinetic function of 2/C=-kt and the apparent activation energy for with chitosan(123.8 kJ·moL-1) was larger than that of membrane with Pb(Ⅱ) ion(92.3 kJ·moL-1). The chitosan membrane with Pb(Ⅱ) ion template was better 'memory' function. The adsorption mechanism of chitosan with Pb(Ⅱ) was studied by IR and XPS. The results indicated that the nitrogen in-NH2 and the oxygen in C3-OH of chitosan were coordination atoms.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2004年第6期711-714,共4页
Chinese Journal of Inorganic Chemistry
基金
安徽省教育厅自然科学基金资助项目(No.2003kj008zd)
