Removal of Reactive Yellow 84 from aqueous solutions by adsorption onto hydroxyapatite

By Noureddine Barka, S. Qourzal, A. Assabbane, A. Nounah, Y. Aît-Ichou. 2011

143 citations recorded by the source corpus.

Abstract The adsorption of a reactive dye, Reactive Yellow 84, from aqueous solution onto synthesized hydroxyapatite was investigated. The experiments were carried out to investigate the factors that influence the dye uptake by the adsorbent, such as the contact time under agitation, absorbent dosage, initial dye concentration, temperature and pH of dye solution. The experimental results show that the amount of dye adsorbed increases with an increase in the amount of hydroxyapatite. The maximum adsorption occurred at the pH value of 5. The equilibrium uptake was increased with an increase in the initial dye concentration in solution. The experimental isotherm data were analyzed using Langmuir isotherm equation. The maximum monolayer adsorption capacity was 50.25 mg/g. The adsorption has a low temperature dependency and was endothermic in nature with an enthalpy of adsorption of 2.17 kJ mol −1 .

Subfields: Analytical Chemistry, Organic Chemistry, Water Science and Technology

View Paper: https://www.semanticscholar.org/paper/87e046e6833cb5ff332a6dddd8ff59c120bfca9a

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In Analytical Chemistry

1. A. Bhatnagar
2. M. Naushad
3. M. Awual

In Organic Chemistry

1. M. Naushad
2. G. Sharma

In Water Science and Technology

1. M. Naushad
2. A. Bhatnagar

Citations in the corpus

• Simultaneous adsorption of Ni(II) and Mn(II) ions from aqueous solution unto a Nigerian kaolinite clay (2014, unknown): “[62] Barka N, Qourzal S, Assabbane A, Nounah A, Ait-Ichou Y.”
• Adsorption of textile dyes on raw and decanted Moroccan clays: Kinetics, equilibrium and thermodynamics (2015, background): “In addition to activated carbon, some adsorbents including agricultural wastes [4,5], lignite [6], natural phosphate [7], chitosan [8], silica [9], kaolinite [10], hydroxyapatite [11,12], perlite [13], sepiolite [14], montmorillonite [15] and some natural biosorbents have also been reported [16,17].”
• Efficient removal of coomassie brilliant blue R-250 dye using starch/poly(alginic acid-cl-acrylamide) nanohydrogel (2017, background): “Actually, adsorbent particles grouped together to form cluster, so there was no significant increase in specific surface area of ST/PL(AA-cl-AAm)NHG (Barka et al., 2011).”
• Ni/Fe and Mg/Fe layered double hydroxides and their calcined derivatives: preparation, characterization and application on textile dyes removal (2017, background): “[8] Barka N, Qourzal S, Assabbane A, Nounah A, Ait-Ichou Y.”