KINETICS AND THERMODYNAMIC STUDIES ON REMOVAL OF COPPER METAL ION FROM AQUEOUS SOLUTION USING RICE STRAW

EL- ZOMRAWY, A. A. and THABET, M. and AWAD, M. B. and SWALEM, A. M. and M. ABO, SHOUK (2011) KINETICS AND THERMODYNAMIC STUDIES ON REMOVAL OF COPPER METAL ION FROM AQUEOUS SOLUTION USING RICE STRAW. Al-Azhar Bulletin of Science, 22 (2). pp. 109-126. ISSN 1110-2535

[thumbnail of ABSB_Volume 22_Issue Issue 2-A_Pages 109-126.pdf]

Text
ABSB_Volume 22_Issue Issue 2-A_Pages 109-126.pdf - Published Version
Download (169kB)

Official URL: https://doi.org/10.21608/absb.2011.7370

Abstract

The adsorption percentage of Cu(II) ions from aqueous solution in the absence and in the presence of different concentration of hydrochloric acid on rice straw (SIII) and its ash (R400) were studied in a modified batch adsorption technique. The kinetic data was analyzed using various kinetic models particularly pseudo-first-order, pseudo-second-order and intra-particle diffusion. The pseudo-second-order kinetic model was found to agree well with the experimental data. Thermodynamic parameters such as enthalpy (H°), free energy (G°) and entropy (S°) changes towards calculated and adsorption process was spontaneous at R400 in the absence and in the presence of 0.005 M HCl and exothermic in nature.

Item Type:	Article
Subjects:	Scholar Eprints > Medical Science
Depositing User:	Managing Editor
Date Deposited:	17 May 2024 11:17
Last Modified:	17 May 2024 11:17
URI:	http://repository.stmscientificarchives.com/id/eprint/2283

Actions (login required)

: View Item