title

خاک رس اصلاح شده کربنات سدیم به عنوان یک جاذب برای حذف رنگ های مصنوعی از محلول های آبی

بیگلری, حامد and رودریگز, کوتو and خانی آبادی, یوسف and نور مرادی, حشمت اله and خوش گفتار, محمد and امرانه, عبدالطیف and وثوقی, مهدی and اسماعیلی, شیرین and حیدری, روح اله and محمدی, محمدجواد and رشیدی, رجب (1397) خاک رس اصلاح شده کربنات سدیم به عنوان یک جاذب برای حذف رنگ های مصنوعی از محلول های آبی. International Journal of Chemical Reactor Engineering ــ 16 (5). pp. 1542-6580. شاپا 2194-5748

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Title

Cationic surfactant-modified clay as an adsorbent for the removal of synthetic dyes from aqueous solutions

English Abstract

In this study, the potential of hexadecyl trimethyl ammonium bromide modified montmorillonite (HDTMA-Mt) to remove the synthetic dyes Alizarin Red S (ARS) and Bromocresol Green (BCG) from aqueous media was assessed. The effect of different factors including surfactant loading rate onto the clay, contact time, pH, adsorbent dosage and dye concentrations, on the removal of ARS and BCG in batch systems were investigated. The adsorbent was characterized by means of scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and X-ray diffractometry (XRD). The equilibrium time for ARS and BCG was reached at 40 and 20 min, respectively, under optimized conditions (i.e. pH = 3, adsorbent dosage=1 g/L, surfactant loading rate onto the clay 70% of the cation exchange capacity (CEC) for ARS and 120% of the CEC for BCG, ARS concentration 50 mg/L and BCG concentration 500 mg/L). The adsorption rate of both dyes fitted the pseudo-second-order kinetic model and the equilibrium data was described by the Freundlich isotherm equation. The maximum monolayer adsorption capacities were equal to 666.6 and 1250 mg/g for ARS and BCG, respectively. Therefore, the HDTMA-Mt can be considered as an effective adsorbent for the removal of ARS and BCG from aqueous solutions

Item Type:Article
زبان سند : انگلیسی
نویسنده اول :حامد بیگلری
نویسنده :کوتو رودریگز
نویسنده :یوسف خانی آبادی
نویسنده :حشمت اله نور مرادی
نویسنده :محمد خوش گفتار
نویسنده :عبدالطیف امرانه
نویسنده :مهدی وثوقی
نویسنده :شیرین اسماعیلی
نویسنده :روح اله حیدری
نویسنده :محمدجواد محمدی
نویسنده مسئول :رجب رشیدی
Additional Information:IF(2018): 1.059 Indexing in: ISI, Scopus, Google scholar
کلیدواژه ها (انگلیسی):Adsorption, Montmorillonite, Alizarin Red S, Bromocresol Green
Subjects:WA Public Health > WA 30 Social, Economic, and Environmental factor in public health
WA Public Health > WA 30 Social, Economic, and Environmental factor in public health

WA Public Health
WA Public Health
Divisions:Faculty of Health > Department of Environmental health
ID Code:10806
Deposited By: دکتر مهدی وثوقی نیری
Deposited On:17 Apr 1398 10:49
Last Modified:19 May 1398 14:53

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