title

جذب رنگ سبز مالاشیوت (MG) به عنوان رنگ کاتیونی بر روی نانولوله کربنی چندسانی کاربردی

شیرمرادی, محمد and محوی, امیرحسین and هاشم زاده, بایرام and نعیم آبادی, ابوالفضل and حسنی, قاسم and وثوقی, مهدی (1392) جذب رنگ سبز مالاشیوت (MG) به عنوان رنگ کاتیونی بر روی نانولوله کربنی چندسانی کاربردی. Korean Journal of Chemical Engineering ــ 30 (8). pp. 1603-1608. شاپا 0256-1115

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Official URL: https://link.springer.com/article/10.1007/s11814-0...


Title

The adsorption of malachite green (MG) as a cationic dye onto functionalized multi walled carbon nanotubes

English Abstract

Synthetic dyes are widely used by several industries to color their products. The discharge of colored wastewater into the hydrosphere causes serious environmental problems. We used functionalized multi wall carbon nanotubes as an adsorbent for the adsorption of cationic dye, malachite green, from aqueous solution. Based on information provided by the Iranian Research Institute of Petroleum Industry, carbon nanotubes are produced using a chemical vapor deposition (CVD) technique. These as-received MWCNTs were functionalized by acid treatment. The remaining dye concentration was read by UV-visible absorption spectroscopy at maximum adsorption wavelength. The effect of different operational parameters such as contact time, pH of solution, adsorbent dose and initial dye concentration were studied. The results showed that by increasing of contact time, pH and adsorbent dose the removal of dye increased, but by increasing initial dye concentration, the removal efficiency decreased. Adsorption isotherms and kinetics behavior of f-MWCNTs for removal of malachite green was analyzed, and fitted to various existing models. The experimental data were well correlated with the Langmuir isotherm with a maximum adsorption capacity (qm) and regression coefficient (R2) of 142.85 mg/g and 0.997, respectively. The results of this study indicate that functionalized multi wall carbon nanotubes can be used as an effective adsorbent for the removal of dyes.

Item Type:Article
زبان سند : انگلیسی
نویسنده اول :محمد شیرمرادی
نویسنده مسئول :امیرحسین محوی
نویسنده :بایرام هاشم زاده
نویسنده :ابوالفضل نعیم آبادی
نویسنده :قاسم حسنی
نویسنده :مهدی وثوقی
Additional Information:(IF(2013):1.241 Indexing in: ISI, Scopus, Google schola
کلیدواژه ها (انگلیسی):Adsorption, Carbon Nanotube, Dye, Isotherm, Kinetic Study
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

QU Biochemistry
WA Public Health
WA Public Health
Divisions:Faculty of Health > Department of Environmental health
ID Code:10854
Deposited By: دکتر مهدی وثوقی نیری
Deposited On:01 Apr 1398 11:57
Last Modified:02 Apr 1398 10:20

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