Adsorption of disperse blue SBL dye by synthesized poorly crystalline hydroxyapatite.
The present study has been undertaken to evaluate the adsorption in batch mode of a disperse dye (Disperse Blue SBL) by poorly crystalline hydroxyapatite synthesized by coprecipitation between Ca(NO3)2 and (NH4)2HPO4 reagents in aqueous solution at room temperature. The adsorption experiments were carried out to investigate the factors that influence the dye uptake by the adsorbent, such as the contact time under agitation, adsorbent dosage, initial dye concentration, solution temperature, and pH. The experimental results show that the percentage of dye removal increases with increasing the amount of adsorbent, until the total discoloration. The adsorption isotherms follow the model of Langmuir with a high adsorption capacity. The adsorption was pH and temperature dependent.
Barka
Noureddine
N
Department of Chemistry, Faculty of Sciences Agadir. BP: 8106 Hay Dakhla, Agadir 80006, Morocco. barkanoureddine@yahoo.fr
Qourzal
Samir
S
Assabbane
Ali
A
Nounah
Abederrahman
A
Aît-Ichou
Yhya
Y
D000327:Adsorption; D000880:Anthraquinones / Q000737:chemistry*; D004396:Coloring Agents / Q000737:chemistry*; D017886:Durapatite / Q000138:chemical synthesis / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D010797:Phthalimides / Q000737:chemistry*; D013696:Temperature; D014867:Water / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D014961:X-Ray Diffraction
D000880:Anthraquinones; D004396:Coloring Agents; D010797:Phthalimides; D014874:Water Pollutants, Chemical; C535091:disperse blue SBL; D014867:Water; D017886:Durapatite