Isotherm, thermodynamic and kinetic studies of Sr2+ adsorption on spherical TiO2/PAN composites

被引：0
|
作者：
Sibel Kasap
Huseyin Tel
Sabriye Piskin
机构：
[1] Ege University,Institute of Nuclear Sciences
[2] Yıldız Technical University,Faculty of Chemical and Metallurgical Engineering
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2011年 / 289卷
关键词：
TiO; Polyacrylonitrile (PAN); Kinetic models; ID model; Boyd equation;
D O I：
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中图分类号：
学科分类号：
摘要：
A spherical polyacrylonitrile–TiO2 composite adsorbent was prepared and its strontium removal potential was investigated. The Langmuir equation fixed well the equilibrium data. The value of ∆H° = 8.943 kJ/mol and ∆G° = 6.291 kJ/mol at 298 K indicate that the adsorption of strontium onto TiO2/PAN composite adsorbent is an endothermic and non-spontaneous reaction. The kinetic process was described by a pseudo-second-order rate model very well.
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页码：537 / 544
页数：7
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