NDLI: Equilibrium and thermodynamic studies of thionine adsorption from aqueous solution onto rice husk

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Equilibrium and thermodynamic studies of thionine adsorption from aqueous solution onto rice husk

Content Provider	Semantic Scholar
Author	Dezhampanah, Hamid Mohammad-Khah, Ali Aghajani, Naghi
Copyright Year	2013
Abstract	In this study, the removal of thionine dye from aqueous solutions using low-cost materials as adsorbent by a batch system was investigated. Experiments were carried out as a function of contact time, initial concentration, pH and temperature. The equilibrium adsorption of thionine dye on rice husk adsorbent was analyzed by Langmuir, Freundlich and Temkin models. The results indicate that the Langmuir model provides the best correlation of the experimental data. Various thermodynamic parameters such as enthalpy (), entropy () and free energy () were evaluated. Thermodynamic parameters values revealed that the adsorption of thionine onto rice husk is endothermic, spontaneous, with an increased randomness in nature. The results revealed that the thionine is considerably adsorbed on rice husk and it could be an economical method for the removal of thionine from aqueous systems.
Starting Page	709
Ending Page	714
Page Count	6
File Format	PDF HTM / HTML
DOI	10.17628/ecb.2013.2.709-714
Alternate Webpage(s)	http://www.eurchembull.com/index.php/ECB/article/download/317/642
Alternate Webpage(s)	http://epa.oszk.hu/02200/02286/00020/pdf/EPA02286_european_chemical_bulletin_2013_10_709-714.pdf
Alternate Webpage(s)	https://doi.org/10.17628/ecb.2013.2.709-714
Volume Number	2
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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