کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
144283 438926 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Adsorption study of Congo red dye from aqueous solution to Mg–Al–layered double hydroxide
ترجمه فارسی عنوان
بررسی جذب رنگ قرمز کنگو از محلول آبی به هیدروکسید دو لایه
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• Congo red (CR) in water was adsorbed by Mg–Al–LDH.
• LDH with metal cations and interlayer anions were synthesized.
• Electrostatic attraction was suggested to control CR adsorption on Mg–Al–LDH.

The removal of Congo red (CR), an anionic dye, by adsorption method was investigated using Mg–Al–layered double hydroxide. The Mg–Al–LDH was prepared using method involving coprecipitation with Mg2+/Al3+ molar ratio of 2 at constant pH of 9. The solid characterized by X-ray diffraction, IR spectroscopy and was well crystallized. The effects of different parameters on adsorption such as pH, contact time, concentration of dye on the efficiency of CR adsorption onto Mg–Al–LDH were investigated. The adsorption kinetics fit the pseudo-second order kinetic models well and isotherms correspond to Langmuir model strictly. The thermodynamic parameters have been calculated, and the adsorption process was found to be spontaneous, endothermic in nature and the electrostatic attraction was suggested to control CR adsorption on Mg–Al–LDH.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advanced Powder Technology - Volume 27, Issue 1, January 2016, Pages 232–237
نویسندگان
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