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Findings on Clinical Trials and Studies Reported by Investigators at University of Yasuj (Silver and zinc oxide nanostructures loaded on activated...

September 8, 2014



Findings on Clinical Trials and Studies Reported by Investigators at University of Yasuj (Silver and zinc oxide nanostructures loaded on activated carbon as new adsorbents for removal of methylene green: A comparative study)

By a News Reporter-Staff News Editor at Clinical Trials Week -- A new study on Clinical Research is now available. According to news originating from Yasuj, Iran, by NewsRx correspondents, research stated, "In this study, the removal of methylene green (MG) from aqueous solution based on two new adsorbents including silver nanoparticles and zinc oxide nanorods loaded on activated carbon (Ag-NP-AC and Zn-ONR-AC, respectively) has been carried out. The dependency of removal process to variables such as contact time, pH, amount of adsorbents, and initial MG concentration were examined and optimized."

Our news journalists obtained a quote from the research from the University of Yasuj, "It was found that the maximum MG removal percentage was achieved at pH = 7.0 following stirring at 400 r min(-1) for 7 and 6 min for Ag-NP-AC and ZnO-NR-AC, respectively. Equilibrium data were well fitted with the Langmuir model having maximum adsorption capacity of 166.7 and 200 mg g(-1) for Ag-NP-AC and ZnO-NR-AC, respectively. Thermodynamic parameters of MG adsorption on Ag-NP-AC such as enthalpy and entropy changes, activation energy, sticking probability, and Gibbs free energy changes show the spontaneous and endothermic nature of the removal process."

According to the news editors, the research concluded: "Among different conventional kinetic models, the pseudo second-order kinetics in addition to particle diffusion mechanism is the best and efficient model for the prediction and explanation of experimental data of MG adsorption onto both adsorbents."

For more information on this research see: Silver and zinc oxide nanostructures loaded on activated carbon as new adsorbents for removal of methylene green: A comparative study. Human & Experimental Toxicology, 2014;33(9):956-967. Human & Experimental Toxicology can be contacted at: Sage Publications Ltd, 1 Olivers Yard, 55 City Road, London EC1Y 1SP, England. (Sage Publications - www.sagepub.com/; Human & Experimental Toxicology - het.sagepub.com)

The news correspondents report that additional information may be obtained from M. Ghaedi, Univ Yasuj, Dept. of Chem Engn, Yasuj 7591435, Iran. Additional authors for this research include H. Karimi and F. Yousefi (see also Clinical Research).

Keywords for this news article include: Yasuj, Iran, Asia, Chemicals, Chemistry, Clinical Research, Clinical Trials and Studies, Emerging Technologies, Nanostructural, Nanostructures, Nanotechnology, Zinc Compounds, Zinc Oxide

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Clinical Trials Week


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