NDLI: Removal of Rhodium (III) from Aqueous Solution by Na- and K-Treated Clinoptilolites

Content Provider	Springer Nature Link
Author	Saltabaş, Ömer Teker, Murat Döver, Aslı Atay, Eylem Serpil
Copyright Year	2011
Abstract	The clinoptilolite which was modified with sodium and potassium chloride was found to have adsorption capacity for rhodium. To evaluate the adsorption capacity and characteristics, the effects of solution pH, dose of clinoptilolite loading, contact time, temperature, and initial rhodium concentration were investigated in a batch mode. Adsorption was decreased with the increasing temperature for both modified clinoptilolites. The Langmuir and Freundlich adsorption models were used for mathematical description of the adsorption equilibrium. Equilibrium data were fitted to the Langmuir model in the concentrations of 2–60 mg l$^{−1}$ at 293 and 313 K. Based on the Langmuir isotherm plots, the maximum adsorption capacity value was calculated to be 0.415 mg g$^{−1}$ at 293 K. Various thermodynamic parameters such as ∆G°, ∆H°, and ∆S° were evaluated with results indicating that this system was an exothermic spontaneous reaction and kinetically suited to the pseudo-second-order model.
Starting Page	411
Ending Page	419
Page Count	9
File Format	PDF
ISSN	00496979
Journal	Water, Air, and Soil Pollution
Volume Number	223
Issue Number	1
e-ISSN	15732932
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-06-25
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Adsorption Clinoptilolite Rhodium Isotherm Waste Water Technology Water Pollution Control Water Management Aquatic Pollution Atmospheric Protection/Air Quality Control/Air Pollution Environment Climate Change Hydrogeology Soil Science & Conservation
Content Type	Text
Resource Type	Article
Subject	Ecological Modeling Environmental Chemistry Pollution Environmental Engineering Water Science and Technology

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