Performance efficiency and kinetic studies of water purification using ZnO and MgO nanoparticles for potassium permanganate

Zinc oxide (ZnO) and Magnesium oxide (MgO) nanoparticles (NPs) have been synthesized by solid–solid reaction technique. X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier-transform infrared (FTIR) were used to investigate the structural properties of ZnO and MgO NPs. XRD indicat...

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Bibliographic Details
Published in:Optical and quantum electronics 2019-09, Vol.51 (9), p.1-13, Article 291
Main Author: Rashad, M.
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
COMPARATIVE EVALUATIONS
Computer Communication Networks
Degradation
Electrical Engineering
FOURIER TRANSFORMATION
Fourier transforms
INFRARED SPECTRA
Lasers
Magnesium oxide
MAGNESIUM OXIDES
NANOPARTICLES
NANOSCIENCE AND NANOTECHNOLOGY
Optical Devices
Optics
Particle diffusion
PERMANGANATES
PHOTOCATALYSIS
Photonics
Physics
Physics and Astronomy
Potassium
POTASSIUM COMPOUNDS
Potassium permanganate
SCANNING ELECTRON MICROSCOPY
SOLIDS
SPACE GROUPS
Superconductors (materials)
WASTE WATER
Wastewater
Water purification
X-RAY DIFFRACTION
Zinc oxide
ZINC OXIDES
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Summary:Zinc oxide (ZnO) and Magnesium oxide (MgO) nanoparticles (NPs) have been synthesized by solid–solid reaction technique. X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier-transform infrared (FTIR) were used to investigate the structural properties of ZnO and MgO NPs. XRD indicates that structural of ZnO NPs has a hexagonal structure with space group P63mc. On the other hand, MgO NPs is cubic structure with space group Fm 3 ¯ m. The photocatalytic efficiency of both ZnO and MgO NPs as a catalyst was illustrated by studying the extreme quantity of potassium permanganate (KMnO 4 ) degradation rate in wastewater. KMnO 4 achieved 17% and 25% degradation rate in 180 min for ZnO and MgO NPs, respectively. The experimental data were examined by the kinetic models of pseudo-first and second order as well as intra-particle diffusion. The obtained data is expressed well by the second-order kinetic model for both NPs. Moreover, according to the experimental results, MgO NPs has high-performance water purification as a comparison of ZnO NPs effect.
ISSN:0306-8919
1572-817X
DOI:10.1007/s11082-019-2003-9