0000000000236330

AUTHOR

Abdolhadi Farrokhnia

0000-0002-3286-6277

showing 3 related works from this author

Synthesis of ZnO–Ag2CO3–Fe3O4@rGO core–shell structure: magnetically separable photocatalyst for degradation of MB using the Box–Behnken design

2020

In this work, a simple microwave method was utilized to prepare ZnO sheet linked with Fe3O4@rGO core–shell and of Ag2CO3 through formation of the quadri-photocatalytic with high activity. The microstructure, morphology, spectroscopic, and magnetic characteristics of the prepared samples were assessed using XRD, SEM, PL, TEM, FT-IR, DLS, and VSM analysis. The photocatalytic activity of the material was evaluated for photodegradation of methylene blue dye under the UV and visible light with home-made photoreactor. The response surface method in a Box–Behnken design was utilized to design the experiments. The parameters affecting the efficiency of the degradation including, pH (5–9), photocata…

010302 applied physicsMaterials scienceCondensed Matter PhysicsMicrostructure01 natural sciencesBox–Behnken designAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsCatalysischemistry.chemical_compoundchemistryChemical engineering0103 physical sciencesPhotocatalysisDegradation (geology)Fe3O4 magnetically separable photocatalyst photocatalysis photodegradationElectrical and Electronic EngineeringPhotodegradationMethylene blueVisible spectrumJournal of Materials Science: Materials in Electronics
researchProduct

Photocatalytic degradation of 4-Nitrophenol by g-C3N4-MCy: Mechanism study and kinetic modeling

2021

Abstract A graphitic carbon nitride (g-C3N4-MCy) photocatalyst was prepared by thermal condensation of melamine and cyanuric acid with equal proportions. The photocatalyst was characterized by Fourier transform infrared spectroscopy (FTIR), Specific surface area (SSA), X-ray diffraction (XRD), Field Emission Scanning Electron Microscope (FESEM), Transmission electron microscope (TEM), and DRS–UV–Vis spectroscopic methods. We studied the photo-degradation kinetics of 4-nitrophenol using a g-C3N4-MCy. Four parameters were applied including initial concentration of 4-nitrophenol, amount of catalyst, dissolved oxygen content, and photon flux. The reaction rate constant was shown to be correlate…

ChemistryGeneral Chemical EngineeringGraphitic carbon nitrideAnalytical chemistryGeneral Physics and Astronomy02 engineering and technologyGeneral Chemistry010402 general chemistry021001 nanoscience & nanotechnology01 natural sciences0104 chemical sciencesCatalysischemistry.chemical_compoundReaction rate constantSpecific surface areaPhotocatalysisFourier transform infrared spectroscopy0210 nano-technologyCyanuric acidMelamineJournal of Photochemistry and Photobiology A: Chemistry
researchProduct

Superparamagnetic recoverable flowerlike Fe3O4@Bi2O3 core–shell with g-C3N4 sheet nanocomposite: synthesis, characterization, mechanism and kinetic s…

2019

In the present research study, a simple method was developed for the synthesis of three-dimensional flowerlike Fe3O4@Bi2O3 core–shell with g-C3N4 sheet nanocomposites. The X-ray diffraction, Fourier transform infrared spectroscopy, scanning electronic microscopy, transmission electron microscope, vibrating sample magnetometer, dynamic laser scattering analyzer and UV–Vis diffuse reflection spectroscopy were employed for the characterization of structure, purity and morphology of the resultant samples. The degradation of indigo carmine as a model of organic dye pollutant is applied for photo-catalytic activity. The parameters which are affecting the efficiency of various parameters, such as;…

010302 applied physicsDiffractionNanocompositeMaterials scienceKineticsAnalytical chemistryElectronCondensed Matter Physics01 natural sciencesAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic Materialsflowerlike Fe3O4@Bi2O3 core-shell g-C3N4 superparamagnetic photocatalysischemistry.chemical_compoundIndigo carminechemistryTransmission electron microscopySettore CHIM/03 - Chimica Generale E Inorganica0103 physical sciencesSettore CHIM/07 - Fondamenti Chimici Delle TecnologieElectrical and Electronic EngineeringFourier transform infrared spectroscopySuperparamagnetism
researchProduct