Isotherm, thermodynamic and kinetic studies of Sr2+ adsorption on spherical TiO2/PAN composites
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, vol.289, no.2, pp.537-544, 2011 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 289 Issue: 2
- Publication Date: 2011
- Doi Number: 10.1007/s10967-011-1131-x
- Journal Name: JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.537-544
- Yıldız Technical University Affiliated: Yes
Abstract
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 a dagger HA degrees A = 8.943 kJ/mol and a dagger GA degrees A = 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.