Adsorption of Selenium From Aqueous Solution by Rice Husk : Characterization, Isotherm and Kinetic Studies

Authors(3) :-Reena Mishra, Amit Chattree, Shazia Siddiqui

The present study explores the adsorption potential of rice husk to remove selenium from aqueous solution. The presence of -OH , -NH ,and -CO groups play major role in adsorption of selenium ions onto adsorbent . The surface morphology pretends to be porous in nature. The optimum equilibrium time and pH was 120 min and 4.0. The adsorption isotherm fitted best was Temkin. The monolayer adsorption capacity of rice husk was 0.810 mg/g. The adsorption data was best fitted by pseudo- second order kinetics with regression coefficient of 0.997 and liquid film diffusion model was rate controlling step. The positive value of ?H and ?S suggest that the process was endothermic and randomness at solid - solution interface.

Authors and Affiliations

Reena Mishra
Department of Chemistry , Sam Higginbottom University of Agriculture , Technology and Sciences, Allahabad, India
Amit Chattree
Department of Chemistry , Sam Higginbottom University of Agriculture , Technology and Sciences, Allahabad, India
Shazia Siddiqui
Department of Chemistry , Sam Higginbottom University of Agriculture , Technology and Sciences, Allahabad, India

Rice Husk, Selenium, Adsorption, Temkin.

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Publication Details

Published in : Volume 3 | Issue 8 | November-December 2017
Date of Publication : 2017-12-31
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 495-502
Manuscript Number : IJSRSET1738159
Publisher : Technoscience Academy

Print ISSN : 2395-1990, Online ISSN : 2394-4099

Cite This Article :

Reena Mishra, Amit Chattree, Shazia Siddiqui, " Adsorption of Selenium From Aqueous Solution by Rice Husk : Characterization, Isotherm and Kinetic Studies, International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 3, Issue 8, pp.495-502, November-December-2017.
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