Journal
JOURNAL OF SAUDI CHEMICAL SOCIETY
Volume 21, Issue 2, Pages 165-171Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jscs.2015.03.001
Keywords
Adsorption; Indigo carmine; Calcium hydroxide; Isotherms; Kinetics; Dye
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Funding
- Vision Group of Science and Technology
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Adsorption of indigo carmine dye onto calcium hydroxide was investigated in this work. The variation in the pH, adsorbent dose, dye concentration, duration and the temperature was evaluated. Adsorption of indigo carmine dye onto calcium hydroxide was effective at pH 12 (50 min) and follows Langmuir-type isotherm behaviour. The adsorption process follows pseudo-second order rate kinetics. Enthalpy, entropy, free energy and the activation energy parameters have been reported. (C) 2015 The Authors. Production and hosting by Elsevier B. V. on behalf of King Saud University. This is an open access article under the CC BY-NC-ND license
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