title: Study of the behaviour of thorium adsorption on PAN/zeolite composite adsorbent.
abstract: The adsorption behaviour of thorium from aqueous solutions by a composite adsorbent has been investigated by a batch technique. The thorium adsorption on composite adsorbent was studied as a function of initial concentration, pH, shaking time and temperature. The sorption of thorium at the determined optimum conditions follows Langmuir, Freundlich and D-R type isotherms. Langmuir constants Q=0.04 mmol g(-1) and b=64.94 L mol(-1) and of D-R parameter Xm = 0.04, beta=0.79 and of sorption energy E=0.80 and Freundlich constants 1/n=3.12 and cm = 0.012 mmol g(-1) were evaluated. Thermodynamic parameters such as DeltaH and DeltaS were found to be 37.32 kJ mol(-1) and 206.17 J mol(-1)K(-1), respectively.
authors.affiliation: Ege University, Institute of Nuclear Sciences, 35100 Bornova, Izmir, Turkey.
authors.forename: A Kilincarslan
authors.initials: AK
authors.lastname: Kaygun
authors.forename: S
authors.initials: S
authors.lastname: Akyil
mesh_terms: D000327:Adsorption; D006863:Hydrogen-Ion Concentration; D013696:Temperature; D013816:Thermodynamics; D013910:Thorium / Q000302:isolation & purification*; D014875:Water Pollutants, Radioactive / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods*; D017641:Zeolites
chemical_list: D014875:Water Pollutants, Radioactive; D017641:Zeolites; D013910:Thorium