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:: Volume 5, Issue 2 (7-2016) ::
J Health Dev 2016, 5(2): 152-165 Back to browse issues page
Naltrexone Removal from Aqueous Media by Multi-Walled Carbon Nanotubes
Mehdi Ansari , Maryam Kazemipour * , Roushan Ahmadi
2- Associate Professor, Department of Chemistry, Kerman Branch, Islamic Azad University, Kerman, Iran
Abstract:   (1486 Views)

Background: Extensive researches with different techniques are being carried out for removal of pharmaceuticals from aqueous media. The aim of this study was to use multi-walled carbon nanotubes (MWCNTs) to remove naltrexone as a pollutant of the aquatic environment and to investigate the mechanism of absorption and factors affecting it.

Methods: In this experimental study, different amounts of MWCNTs were added to different concentrations (200 to 400 mg/L) of naltrexone and adsorption at various conditions including temperature, pH, and time of adsorption was studied. Adsorption on multi-walled carbon nanotubes was adopted on isotherm model equations to estimate the adsorption mechanism.

Results: Optimum conditions to remove 90% of naltrexone from 20 ml of its 400mg/ml solution were at adsorbent amount of 0.1g and time of 20 to 30 minutes. Temperature and pH had no effect on adsorption in the examined ranges. The drug can be absorbed as one layer and according to the Langmuir isotherm, on carbon nanotubes.

Conclusion: Naltrexone removal by MWCNTs, due to higher surface area and therefore more efficient adsorption properties, is more efficient than by activated carbon and requires no specific conditions in regard to pH, temperature, and concentration. Substances with similar structures, like morphine, compete with naltrexone on adsorption.

Keywords: Naltrexone, MWCNTs, Removal, Aqueous Media
Full-Text [PDF 836 kb]   (484 Downloads)    
Type of Study: Research | Subject: General
Received: 2016/07/12 | Accepted: 2016/07/12 | Published: 2016/07/12
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Ansari M, Kazemipour M, Ahmadi R. Naltrexone Removal from Aqueous Media by Multi-Walled Carbon Nanotubes. J Health Dev. 2016; 5 (2) :152-165
URL: http://jhad.kmu.ac.ir/article-1-142-en.html

Volume 5, Issue 2 (7-2016) Back to browse issues page
مجله بهداشت و توسعه Journal of Health and Development
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