Evaluation of single-Walled and Multi-Walled Carbon Nanotubes Efficiency for Removal of Acetaminophen from Aquatic Solutions: isotherm and kintick adsorption study

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Hossein Nezhad Aliyeh; KHODADADI MARYAM; NAGHIZADEH ALI; NASSEH NEGIN; CHAVOSHAN SOHEILA

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Journal: Journal of Birjand University of Medical Sciences Year:2019 | Volume:26 | Issue:3 Page(s): 198-212

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Title

Evaluation of single-Walled and Multi-Walled Carbon Nanotubes Efficiency for Removal of Acetaminophen from Aquatic Solutions: isotherm and kintick adsorption study

Author(s)

Keywords

AcetaminophenQ3

Carbon NanotubesQ2

Absorption IsothermQ2

Reaction kineticsQ1

Aqueous EnvironmentsQ2

Abstract

Background and Aim: The residuals of drug are belonging to emerging pollutants. Drugs and their metabolites should be removed from water resources due to potential risks and their toxicities for humans and the environment. These materials are not completely eliminated by the conventional methods of water and wastewater treatment. The purpose of this study was to investigate the removal of Acetaminophen using single-walled and multi-walled Carbon Nanotubes from Aqueous Environments. Materials and Methods: In this experimental study, the effect of different parameters such as: pH, initial concentration of Acetaminophen, adsorbent dose, time of touch and mixing speed were investigated in Acetaminophen removal by single-wall and multi-wall Carbon Nanotubes. The adsorption isotherms of Langmuir, Freundlich, Temkin, Dubinin-Rudeshkuvich and BET and pseudo-first and pseudo-second order adsorption kinetics were also investigated. Acetaminophen concentration was measured by spectrophotometer at (λ max = 258 nm). Results: The result of the experiments showed that single-wall and multi-wall carbone nanotubes could be able to removal 38. 59% and 28. 24% of Acetaminophen at time=45 min, PH=7. With increasing the dose of nanotubes, the removal percentage increased and absorption capacity decreased, Absorption process showed the highest correlation with Langmuir model and pseudo-second kinetics (R2>0. 99). Conclusion: The results showed that single-walled and multi-walled carbon nanotube adsorbents can be used as an effective adsorbent in the removal of Acetaminophen from Aqueous Environments along with other treatment methods.

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