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Amini M.,University of Maragheh Golshahr | Naslhajian H.,University of Tehran | Farnia S.M.F.,University of Tehran
New Journal of Chemistry | Year: 2014

V/TiO2 nanoparticles were synthesized by a one-pot solution combustion method using ammonium metavanadate and titanyl nitrate as a source of vanadium and titanium, respectively. Atomic absorption spectroscopy (AAS), FT-IR, X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were employed to characterize the physicochemical properties of this compound. This compound shows efficient catalytic reactivity for epoxidation of olefins and oxidation of alcohols in the presence of H2O2 as an oxidant. © 2014 The Royal Society of Chemistry and the Centre National de la Recherche Scientifique. Source


Amini M.,University of Maragheh Golshahr | Ashrafi M.,University of Maragheh Golshahr | Gautam S.,Panjab University | Chae K.H.,Korea Institute of Science and Technology
RSC Advances | Year: 2015

Nanoparticles of ZrO2, CeO2 and TiO2 doped with vanadium were synthesized and the physicochemical properties of the compounds were characterized by X-ray diffraction (XRD), X-ray absorption near edge structure (XANES), energy dispersive X-ray analysis (EDX), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The catalytic degradation of methylene blue (MB), an organic dye, in the presence of these materials and hydrogen peroxide (H2O2) as a green oxidant was studied at room temperature. The effects of solution pH, catalyst composition and radical scavenging agents on the degree of degradation of MB were also studied. Finally, the recoverability and reusability of the V-doped ZrO2 catalyst were analysed. © The Royal Society of Chemistry 2015. Source


Amini M.,University of Maragheh Golshahr | Najafpour M.M.,Institute for Advanced Studies in Basic Sciences | Naslhajian H.,University of Maragheh Golshahr | Naslhajian H.,University of Tehran | And 2 more authors.
RSC Advances | Year: 2014

We for the first time report that nanolayered Mn-Ca oxide in the presence of H2O2 is an efficient catalyst toward sulfide oxidation to sulfoxide. We characterized the catalyst by DLS, UV-Vis, diffuse reflectance infrared Fourier transform spectroscopy, SEM, TEM and HRTEM. We also considered different parameters of the sulfide-oxidation reaction. © 2014 The Royal Society of Chemistry. Source


Bagherzadeh M.,Sharif University of Technology | Amini M.,University of Maragheh Golshahr | Derakhshandeh P.G.,Sharif University of Technology | Haghdoost M.M.,Sharif University of Technology
Journal of the Iranian Chemical Society | Year: 2014

The glucose-based ligand, N-salicylidene-d-glucosamine (Sal-d-glsmN), was readily obtained by reaction of salicylaldehyde (Hsal) with the d-glucosamine hydrochloride. Ligand Sal-d-glsmN was found to be an efficient ligand in the palladium-catalyzed Suzuki and Heck C-C coupling reactions in aqueous medium under aerobic condition. It was found that the use of Sal-d-glsmN/Pd(OAc) 2 system as a catalyst, aryl halides undergo Suzuki and Heck cross-couplings, respectively, with arylboronic acids and olefins to give the desired products in moderate to excellent yields. © 2013 Iranian Chemical Society. Source


Najafpour M.M.,Institute for Advanced Studies in Basic Sciences | Rahimi F.,Institute for Advanced Studies in Basic Sciences | Amini M.,University of Maragheh Golshahr | Nayeri S.,Institute for Advanced Studies in Basic Sciences | Bagherzadeh M.,Sharif University of Technology
Dalton Transactions | Year: 2012

Nano-sized particles of manganese oxides have been prepared by a very simple and cheap process using a decomposing aqueous solution of manganese nitrate at 100 °C. Scanning electron microscopy, transmission electron microscopy and X-ray diffraction spectrometry have been used to characterize the phase and the morphology of the manganese oxide. The nano-sized manganese oxide shows efficient catalytic activity toward water oxidation and the epoxidation of olefins in the presence of cerium(iv) ammonium nitrate and hydrogen peroxide, respectively. © 2012 The Royal Society of Chemistry. Source

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