نتایج جستجو برای: sonochemical degradation

تعداد نتایج: 151992  

2017
Przemysław J. Jodłowski Roman J. Jędrzejczyk Damian K. Chlebda Anna Dziedzicka Łukasz Kuterasiński Anna Gancarczyk Maciej Sitarz

The aim of this study was to obtain nanocrystalline mixed metal-oxide-ZrO₂ catalysts via a sonochemically-induced preparation method. The effect of a stabiliser's addition on the catalyst parameters was investigated by several characterisation methods including X-ray Diffraction (XRD), nitrogen adsorption, X-ray fluorescence (XRF), scanning electron microscopy (SEM) equipped with energy dispers...

1998
Kurikka V. P. M. Shafi Aharon Gedanken Ruslan Prozorov Judit Balogh

Nanostructured CoFe2O4 particles were prepared by a sonochemical approach, first by preparation of the amorphous precursor powders, followed by heat treatment at relatively very low temperatures. The precursor was prepared by sonochemical decomposition of solutions of volatile organic precursors, Fe(CO)5 and Co(NO)(CO)3, in Decalin at 273 K, under an oxygen pressure of 100-150 kPa. The amorphou...

2012
Zahra Rahmani Majid Kermani Mitra Gholami Ahmad Jonidi Jafari Niyaz Mohammad Mahmoodi

In this study, degradation of Basic Violet 16 (BV16) by ultraviolet radiation (UV), ultrasonic irradiation (US), UV/H2O2 and US/H2O2 processes was investigated in a laboratory-scale batch photoreactor equipped with a 55W immersed-type low-pressure mercury vapor lamp and a sonoreactor with high frequency (130kHz) plate type transducer at 100W of acoustic power. The effects of initial dye concent...

Journal: :Catalysts 2023

This study aims to analyse the use of biowaste-derived carbon in enhancing photocatalytic effect Earth-abundant visible light active goethite (??FeOOH). The biowaste material used this case is seeds Indian blackberry fruit. FeOOH/C composite has been synthesized using an assisted sonochemical technique. photocatalysts have characterized powder x-ray diffraction, nitrogen adsorption isotherms an...

In the present study, Co-ZnO and Co-Ni-ZnO nanoparticles were synthesized by sonochemical methods and the structural and optical properties were investigated through Fourier Transform Infrared spectroscopy (FTIR), UV-Vis spectroscopy, Field Emission Scanning Electron Microscopy (FE-SEM), X-Ray Diffraction (XRD), and Photoluminescence spectroscopy (PL) methods. Morphology of nanoparticles obtain...

In the present study, Co-ZnO and Co-Ni-ZnO nanoparticles were synthesized by sonochemical methods and the structural and optical properties were investigated through Fourier Transform Infrared spectroscopy (FTIR), UV-Vis spectroscopy, Field Emission Scanning Electron Microscopy (FE-SEM), X-Ray Diffraction (XRD), and Photoluminescence spectroscopy (PL) methods. Morphology of nanoparticles obtain...

Journal: :journal of nanostructures 2012
a. morsali l. hashemi

a new nano-sized lead(ii) coordination polymer, [pb(2-bpdh)(no3)2]n (1); (2-bpdh = 2,5-bis(2-pyridyl)-3,4-diaza-2,4-hexadiene)}, 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 differen...

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