Universiti Teknologi Malaysia Institutional Repository

Adsorption properties of cationic rhodamine B dye onto metals chloride-activated castor bean residue carbons

Zhi, L. L. and Zaini, M. A. A. (2017) Adsorption properties of cationic rhodamine B dye onto metals chloride-activated castor bean residue carbons. Water Science and Technology, 75 (4). pp. 864-880. ISSN 0273-1223

Full text not available from this repository.

Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

This work was aimed to evaluate the feasibility of castor bean residue based activated carbons prepared through metals chloride activation. The activated carbons were characterized for textural properties and surface chemistry, and the adsorption data of rhodamine B were established to investigate the removal performance. Zinc chloride-activated carbon with specific surface area of 395 m2/g displayed a higher adsorption capacity of 175 mg/g. Magnesium chloride and iron(III) chloride are less toxic and promising agents for composite chemical activation. The adsorption data obeyed Langmuir isotherm and pseudo-second-order kinetics model. The rate-limiting step in the adsorption of rhodamine B is film diffusion. The positive values of enthalpy and entropy indicate that the adsorption is endothermic and spontaneous at high temperature.

Item Type:Article
Uncontrolled Keywords:Adsorption, Castor bean residue, Chemical activation, Metals chloride, Rhodamine B
Subjects:T Technology > TP Chemical technology
Divisions:Chemical Engineering
ID Code:75563
Deposited By: Widya Wahid
Deposited On:15 Apr 2018 16:04
Last Modified:15 Apr 2018 16:04

Repository Staff Only: item control page