کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
229530 465031 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Removal of Reactive Yellow 84 from aqueous solutions by adsorption onto hydroxyapatite
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Removal of Reactive Yellow 84 from aqueous solutions by adsorption onto hydroxyapatite
چکیده انگلیسی

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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Saudi Chemical Society - Volume 15, Issue 3, July 2011, Pages 263–267
نویسندگان
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