Azim Malekzadeh
School of Chemistry, Damghan University (DU), Damghan, I. R. Iran.
[ 1 ] - Effect of Sr substitution on structural, redox and catalytic properties of nano-particles La1-xSrxMn0.5Co0.5O3 (x = 0.0, 0.1, 0.2, 0.3, 0.4, 0.5) as a catalyst for CO oxidation
Structural features of La(1-x)SrxMn0.5Co0.5O3 (x = 0.0, 0.1, 0.2, 0.3, 0.4, and 0.5) nano-particles were investigated using X-ray powder diffraction and FT-IR spectroscopy. The characterization of compounds by X-ray powder diffraction and using Fullprof program show a cubic structure (Pm3m space group) for x = 0.0 and a rhombohedra structure (R-3c space group) for the Sr substituted La(1-x)SrxM...
[ 2 ] - Structural Features of La0.55Ca0.45A0.50Co0.50O3 (A=Mg, Mn) Nanoparticles Over Photo-Degradation of Methyl Blue
In this paper, La0.55Ca0.45A0.5Co0.5O3(A=Mg, Mn) nanoparticles were synthesized by citratemethod. The samples were characterized using the techniques of using X-ray diffraction(XRD), transmission electron microscopy (TEM), Fourier transform infrared (FTIR) and UVVisspectroscopy. The structure was analyzed by Rietveld fitting of the XRD pattern by usingX’Pert package and Fullprof program, these ...
[ 3 ] - Synthesis of pure monoclinic zirconia nanoparticles using ultrasound cavitation technique
In the current study, synthesis and characterization of a new nano-structured zirconium(IV)-minoxidil complex (1), where minoxidil, (C9H15N5O; 6-(1-Piperidinyl)-2,4-pyrimidinediamine 3-oxide), have been investigated in two different solvents. The compound 1 has been synthesized by sonochemical method in the presence of methanol and monoethylene glycol (MEG) as solvents and characterized by scan...
[ 4 ] - A comparative study of catalytic properties of ZnO and FeZnO nanoparticles on Oxidation of Benzylic alcohols: Influence of doped metal
Novel nano-catalysts (Nano ZnO and Fe doped ZnO (Fe(0.1)Zn(0.99)O) synthesized by co-precipitation method in aqueous solution as new nanocatalysts and characterized by common techniques as FTIR, XRD, SEM and UVD. The size of particles obtained from XRD data is 27 and 16 nanometers for ZnO and Fresno respectively. Influences of doped Fe on ZnO catalytic properties in oxidation of Benzylic alcoho...
[ 5 ] - تهیه و تعیین خصوصیات گرافن اکساید عامل دار شده با گاما-سیکلودکسترین و نانو ذرات سوپر پارامغناطیس اکسیدآهن به عنوان نانو حامل جدید برای دارو رسانی
با وجود آنکه داروهای خوراکی بهترین انتخاب برای دارو رسانی است، ولی بسیاری از ترکیبات دارویی از جمله ضدسرطان ها با ساختار آروماتیک، محلولیت پایینی در آب و مایعات بیولوژیکی دارند، این امر موجب کاهش مقدار و سرعت جذب این مواد دارویی و در نهایت منجر به محدودیت استفاده از آن ها در درمان بیماری ها می شود. علم نانو با خصوصیات منحصر به فرد خود بسیاری از این محدودیت ها را کاهش داده است؛ به گونه ای که با ...
[ 6 ] - Methyl orange degradation over nano-LaMnO3 as a green catalyst under the mild conditions
This study was conducted to investigate the use of cubic LaMnO3 nano-perovskite as a green catalyst for the degradation of an aqueous solution of methyl orange under different conditions. Nanoscale cubic lanthanum manganite with the particle size of ~20 nm was successfully synthesized via citrate sol-gel method. The sample was characterized using the FT-IR and UV-Vis spectroscopy, XRD, SEM, and...
[ 7 ] - Structural, Magnetic and Catalytic Properties of Non-Stoichiometric Lanthanum Ferrite Nano-Perovskites in Carbon Monoxide Oxidation
Perovskite-type oxides of LaFe(1+x)O(3+δ) (x = 0.0, 0.2, 0.5 and 0.7) were synthesized by citrate sol–gel methodto ensure the formation of nanosized perovskites. The physicochemical properties of these LaFe(1+x)O(3+δ)materials were characterized by thermal gravimetric/differential analyses, Fourier transform infraredspectroscopy, X-ray powder diffraction, scanning electron and...
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