نتایج جستجو برای: sonochemical method

تعداد نتایج: 1631033  

2012
Ze-Da Meng Lei Zhu Trisha Ghosh Chong-Yeon Park Kefayat Ullah Vikram Nikam Won-Chun Oh

Ag2Se-Graphene/TiO2 composite was synthesized by a facile sonochemical method. The as-prepared products were characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM) with energy dispersive X-ray (EDX) analysis, transmission electron microscopy (TEM) and UV-vis diffuse reflectance spectrophotometer. During the reaction, both of the reduction of graphene oxide and loading of A...

2012
L. Hashemi A. Morsali

A new nano-sized lead(II) coordination polymer, [Pb(2bpdh)(NO3)2]n(1); (2-bpdh = 2,5-bis(2-pyridyl)-3,4-diaza-2,4hexadiene)}, was synthesized by a sonochemical method. The structure of 1 may be considered coordination polymer of lead(II) consist of metallocyclicchains formed by bridging NO3 and 2-bpdh ligands. The thermal stability of compound was studied by thermal gravimetric and differential...

2016
Xin Liu Yinliang Li Jun Yang Bo Wang Mingguo Ma Feng Xu Runcang Sun Xueming Zhang

The fabrication of reusable and biodegradation materials from renewable resources such as cellulose is essential for a sustainable world. The core-shell structured CdS-decorated TiO₂/Carbon microspheres (CdS/TiO₂/Carbon MS) photocatalyst was synthesized with controlled hydrolysis and a novel sonochemical method. It was prepared by using crosslinked microcrystalline cellulose as the core, tetrab...

Journal: :Applied Surface Science 2021

Herein, carbon quantum dots (CQDs) are anchored on reduced graphene oxide (rGO) sheets by sonochemical assisted method. The developed dots/reduced (CQDs/rGO) catalyst shows enhancement in the photocatalytic degradation of methylene blue and methyl orange under visible light compared to that individual CQDs rGO components. improved performance CQDs/rGO has been attributed efficient separation ph...

Journal: :Materials advances 2021

The ultrasonic conditions of different sonochemical reactors can be tuned to obtain Pt-nanoparticles similar sizes. At low frequencies (20 kHz) Ti/V/Al-contaminants were produced due the probe erosion leading improved kinetics.

Journal: :Journal of the American Chemical Society 2007
Jin Ho Bang Kenneth S Suslick

Hollow inorganic materials are of great interest, in part because of their diverse applications for drug delivery, catalysis, photonic crystals, etc.1 Various preparation methods have been developed to fabricate hollow inorganic materials2,3 and even hollow single crystals;4 most commonly these synthetic methods exploit the use of silica nanospheres as a sacrificial template material. While sil...

Journal: :Ultrasonics sonochemistry 2016
R L Palomino A M Bolarín Miró F N Tenorio F Sánchez De Jesús C A Cortés Escobedo S Ammar

We present the synthesis of M-type strontium hexaferrite by sonochemistry and annealing. The effects of the sonication time and thermal energy on the crystal structure and magnetic properties of the obtained powders are presented. Strontium hexagonal ferrite (SrFe12O19) was successfully prepared by the ultrasonic cavitation (sonochemistry) of a complexed polyol solution of metallic acetates and...

Journal: :physical chemistry research 2015
aziz habibi-yangjeh hadi nouri

in this work, mg-doped zno nanostructures were prepared in water under ultrasonic irradiation for 60 min without using any organic compounds or post preparation treatments. the prepared samples were characterized by x-ray diffraction (xrd), scanning electron microscopy (sem), transmission electron microscopy (tem), energy dispersive analysis of x-ray (edx), diffuse reflectance spectroscopy (drs...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2014
razieh razavi sayed mohammad ali hosseini mohammad ranjbar

titanium dioxide is widely used in the manufacturing of paints, varnishes, lacquer, paper, paperboard, printing inks, rubber, floor covering, and ceramics and so on. white titanium dioxide pigment has been produced by two main processes. the sulfate and the chloride processes. each of these two routes requires different feedstocks. however, economic and environmental pressures are shifting the ...

A. Malekzadeh M. Lahooti M. Ranjbar M. Yousefi

In this study, isophthalic acid-zirconium(IV) nanocomposite has been prepared from zirconyl nitrate pentahydrate and potassium iodide, with isophthalic acid, (C8H6O4=Benzene-1,3-dicarboxylic acid) as a ligand, via sonochemical method in ethylene glycol and methanol as solvents. The crystalline tetragonal ZrO2 has been produced by thermal decomposition of isophthalic acid-zirconium(IV) nanocompo...

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