T1 - Sonochemical synthesis of inorganic nanoparticles

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T1 - Sonochemical synthesis and photocurrent of HgTe nanoparticles

T1 - One-pot low-temperature sonochemical synthesis of CuO nanostructures and their electrochemical properties

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Sonochemical synthesis of zeolite A has been conducted by ultrasonic irradiation of mixtures of metakaolinite and NaOH solution. The hydrothermal synthesis at conventional synthesis conditions was undertaken to determine the sonochemical reliability. The enhancement of nucleation and crystallization rate of zeolite A was achieved by ultrasound. In the ultrasonic field, zeolite A once formed in the suspension has been converted into hydroxysodalite and losod as sonicating proceeded. Comparing the results with those of conventional methods, this heterogeneous reaction was particularly accelerated by ultrasound, leading to improved reactivity of solid reactant through intensive mixing. The use of ultrasound enables us to prepare well-dispersed fine zeolite A particles with mean particle size of around 1 μm. The cation exchange capacity values of the products increased as the synthesis reaction for zeolite A proceeded. The high solid concentration in the suspension, however, hindered the ultrasound from intense agitating, resulting in the decrease of zeolite A yield.

Sonochemical synthesis and characterization of …

We report the sonochemical synthesis of mercury telluride (HgTe) nanoparticles and the photocurrents of these nanoparticles and their organic hybrid system. The HgTe nanoparticles were about 5 nm in size and their lattice structure was cubic. Poly(N-vinylcarbazole)(PVK) was added to the HgTe nanoparticles for the formation of an inorganic(HgTe)-organic(PVK) hybrid system. The room-temperature photocurrents of the HgTe nanoparticles and the HgTe-PVK hybrid system were compared in this study. The photocurrent was significantly enhanced for the HgTe-PVK hybrid system.

Sonochemical synthesis of MOF-5 - ResearchGate

AB - We report a low-temperature sonochemical method for the synthesis of CuO nanostructure. CuO nanowires and ellipsoidal CuO nanostructures were fabricated using 20 kHz ultrasonic irradiation. The ultrasonic irradiation led to the efficient precipitation of crystalline CuO nanoparticles at 10 °C without additional dehydration or heat treatment. The formation mechanism of the CuO nanostructures was investigated by X-ray diffraction, field emission scanning electron microscopy, and transmission electron microscopy with respect to the exposure time and amount of surfactant. The optimized CuO nanoparticles (SW-CTAB1) have an ideal one-dimensional CuO nanostructure with a high Brunauer-Emmett-Teller surface area of 62.15 m2 g−1. Furthermore, the SW-CTAB1 electrodes exhibited a good lithium activity.

N2 - We report the sonochemical synthesis of mercury telluride (HgTe) nanoparticles and the photocurrents of these nanoparticles and their organic hybrid system. The HgTe nanoparticles were about 5 nm in size and their lattice structure was cubic. Poly(N-vinylcarbazole)(PVK) was added to the HgTe nanoparticles for the formation of an inorganic(HgTe)-organic(PVK) hybrid system. The room-temperature photocurrents of the HgTe nanoparticles and the HgTe-PVK hybrid system were compared in this study. The photocurrent was significantly enhanced for the HgTe-PVK hybrid system.

Sonochemical synthesis of LaMnO3 nano-powder - …

AB - We report the sonochemical synthesis of mercury telluride (HgTe) nanoparticles and the photocurrents of these nanoparticles and their organic hybrid system. The HgTe nanoparticles were about 5 nm in size and their lattice structure was cubic. Poly(N-vinylcarbazole)(PVK) was added to the HgTe nanoparticles for the formation of an inorganic(HgTe)-organic(PVK) hybrid system. The room-temperature photocurrents of the HgTe nanoparticles and the HgTe-PVK hybrid system were compared in this study. The photocurrent was significantly enhanced for the HgTe-PVK hybrid system.

N2 - We report a low-temperature sonochemical method for the synthesis of CuO nanostructure. CuO nanowires and ellipsoidal CuO nanostructures were fabricated using 20 kHz ultrasonic irradiation. The ultrasonic irradiation led to the efficient precipitation of crystalline CuO nanoparticles at 10 °C without additional dehydration or heat treatment. The formation mechanism of the CuO nanostructures was investigated by X-ray diffraction, field emission scanning electron microscopy, and transmission electron microscopy with respect to the exposure time and amount of surfactant. The optimized CuO nanoparticles (SW-CTAB1) have an ideal one-dimensional CuO nanostructure with a high Brunauer-Emmett-Teller surface area of 62.15 m2 g−1. Furthermore, the SW-CTAB1 electrodes exhibited a good lithium activity.

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  • Sonochemical synthesis of Fe3O4/ZnO ..

    Sonochemical route to nanoparticle synthesis - …

  • 2013 Sonochemical Synthesis of Nanomateri | …

    19/01/2009 · Sonochemical route to nanoparticle synthesis

  • Sonochemical Synthesis of Zeolite A from …

    2013 Sonochemical Synthesis of Nanomateri - Free download as PDF File (.pdf), Text File (.txt) or read online for free

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Sonochemical synthesis of Bi 2 CuO 4 ..

AB - For the first time, a sonochemical process has been used to synthesis cobalt oxide Co3O4 nanoflowers and nanorods morphology in the presence of the ionic liquid 1-Ethyl-3-methylimidazolium tetrafluoroborate [EMIM][BF4] as reaction media and morphology template. Different sonication time periods and different molar ratios of the ionic liquid (IL) were used to investigate their effects on the structural, optical, chemical and magnetic properties of the produced Co3O4 nanoparticles. During synthesis process brown powder contains cobalt hydroxide Co(OH)2 and cobalt oxyhydroxide (Cobalt hydroxide oxide) CoO(OH) was formed, after calcination in air for 4h at 400C a black powder of Co3O4 nanoparticles was produced. The produced Co3O4 nanoparticles properties were characterized by X-ray diffraction (XRD), Field Emission Scanning Electron Microscopy (FE-SEM), transmission electron microscopy (TEM), FTIR spectroscopy, UV-vis spectroscopy, and Vibrating Sample Magnetometer (VSM). To explain the formation mechanism of Co3O4 NPs some investigations were carried on the brown powder before calcination.

Sonochemical synthesis of metal oxides and phosphates

François-Xavier Felpin was born in Villefranche-sur-Saône, France, in 1977. He received his Ph.D degree in 2003 from the University of Nantes under the supervision of Professor Jacques Lebreton working on the synthesis of alkaloids. After receiving his Ph.D., he was engaged in a postdoctoral position with Professor Robert S. Coleman at The Ohio State University working on the synthesis of mitomycin. In 2004, he joined the University of Bordeaux as an assistant professor and received his habilitation in 2009. In the fall of 2011, he moved to the University of Nantes, where he was promoted to full professor. Prof. Felpin is a junior member of the Institut Universitaire de France, and he recently received the 2014 Young Researcher Award from the French Chemical Society. His research interests include heterogeneous and homogeneous sustainable catalysis, new technologies, and material chemistry.

In situ sonochemical synthesis of ZnO particles …

N2 - For the first time, a sonochemical process has been used to synthesis cobalt oxide Co3O4 nanoflowers and nanorods morphology in the presence of the ionic liquid 1-Ethyl-3-methylimidazolium tetrafluoroborate [EMIM][BF4] as reaction media and morphology template. Different sonication time periods and different molar ratios of the ionic liquid (IL) were used to investigate their effects on the structural, optical, chemical and magnetic properties of the produced Co3O4 nanoparticles. During synthesis process brown powder contains cobalt hydroxide Co(OH)2 and cobalt oxyhydroxide (Cobalt hydroxide oxide) CoO(OH) was formed, after calcination in air for 4h at 400C a black powder of Co3O4 nanoparticles was produced. The produced Co3O4 nanoparticles properties were characterized by X-ray diffraction (XRD), Field Emission Scanning Electron Microscopy (FE-SEM), transmission electron microscopy (TEM), FTIR spectroscopy, UV-vis spectroscopy, and Vibrating Sample Magnetometer (VSM). To explain the formation mechanism of Co3O4 NPs some investigations were carried on the brown powder before calcination.

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