کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
221525 464260 2016 11 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Adsorption of reactive blue 21 and reactive red 141 from aqueous solutions onto hydrotalcite
ترجمه فارسی عنوان
انواع جذب واکنش آبی 21 و راکتیو قرمز 141 از محلول های آبی بر روی hydrotalcite
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کلمات کلیدی
جذب؛ Hydrotalcite؛ رنگ آنیونی؛ واکنش آبی-21 و راکتیو قرمز 141
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• We have investigated the adsorption of two anionic dyes—a phthalocyanine dye.
• Reactive blue 21 and azo dye, reactive red 141 onto Mg–Al hydrotalcite for the first time.
• The nature of interaction between dyes and Ht is electrostatic, hydrogen bonding and vanderwaals interactions.
• The adsorption capacity for both the dyes was high.

The adsorption potential of hydrotalcite (HT) for reactive blue 21 (RB-21) and reactive red 141 (RR-141) in aqueous solutions has been investigated by batch technique.HT was characterized by X-ray photoelectron spectroscopy (XPS), X-ray diffractometry (XRD), FT-IR spectroscopy (FT-IR), zeta potential and scanning electron microscopic (SEM) techniques. Adsorption studies were carried out as a function of various parameters like pH, adsorbent dose, co-existing anions, time of contact and initial dye concentration. The isotherm parameters of both the dyes were found to be in good agreement with Langmuir and Freundlich models. The adsorption capacity of HT for RB-21 and RR-141 was found to be 266.7 mg/g and 320.5 mg/g respectively at an optimum pH of 2.0. The adsorption of RB-21 resulted in reconstruction of HT as indicated by XRD analysis. Both RB-21 and RR-141 could be effectively desorbed using 0.1 N Na2CO3 and HT could be reused upto three adsorption-desorption cycles

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Chemical Engineering - Volume 4, Issue 3, September 2016, Pages 2617–2627
نویسندگان
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