Mamduh J. Aljaafreh

ORCID: 0000-0003-2493-2884
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Research Areas
  • Organic Light-Emitting Diodes Research
  • Radiation Shielding Materials Analysis
  • Advanced Photocatalysis Techniques
  • Photochemistry and Electron Transfer Studies
  • Organic Electronics and Photovoltaics
  • Graphite, nuclear technology, radiation studies
  • Conducting polymers and applications
  • Perovskite Materials and Applications
  • Luminescence and Fluorescent Materials
  • TiO2 Photocatalysis and Solar Cells
  • Electrocatalysts for Energy Conversion
  • Nuclear materials and radiation effects
  • Advanced battery technologies research
  • Photonic and Optical Devices
  • ZnO doping and properties
  • Porphyrin and Phthalocyanine Chemistry
  • Gas Sensing Nanomaterials and Sensors
  • Ga2O3 and related materials
  • Radiation Detection and Scintillator Technologies
  • Advanced X-ray and CT Imaging
  • Radioactivity and Radon Measurements
  • Nonlinear Optical Materials Studies
  • Quantum Dots Synthesis And Properties
  • Fuel Cells and Related Materials
  • Nuclear Physics and Applications

Imam Mohammad ibn Saud Islamic University
2022-2025

King Saud University
2017-2023

This work demonstrates a new sol-gel approach for synthesizing PbO2-doped zirconia using zircon mineral precursors. The streamlined methodology enables straightforward fabrication of the doped composites. Comprehensive materials characterization was performed XRD, SEM, and TEM techniques to analyze crystal structure, microstructure, morphology. Quantitative analysis XRD data provided insights into nanoscale crystallite sizes achieved, along with their relationship lattice imperfections....

10.1016/j.net.2024.02.001 article EN cc-by-nc-nd Nuclear Engineering and Technology 2024-02-10

This study introduces a novel nanocomposite coating composed of PANI/CeO2 films, aimed at addressing corrosion protection needs. Analysis through FTIR spectra and XRD patterns confirms the successful formation films. Notably, films exhibit hydrophilic nature. The bandgap energy PANI composite film is measured to be 3.74 eV, while introduction CeO2 NPs into matrix reduces 3.67 eV. Furthermore, electrical conductivity observed 0.40 S·cm−1, with incorporation leading an increase in 1.07 S·cm−1....

10.3390/nano14060526 article EN cc-by Nanomaterials 2024-03-15

Abstract This work explores six newly designed compounds obtained by several substitutions in 2,5-di(2-thienyl) pyrrole molecule. For this series of compounds, the electronic and optical properties were investigated using density functional theory time-dependent (TD-DFT). The new characterized calculating chemical parameters that correlated with their electrical properties. lowest unoccupied molecular orbital (LUMO) highest occupied (HOMO) energies are calculated B3LYP 6-311G (d, p) basis...

10.1515/phys-2024-0012 article EN cc-by-nc-nd Open Physics 2024-01-01

Herein, nanorods-like ZnO particles was prepared by effective chemical synthesis process and carbon nanoplates supported nanorods (ZnO/C) wet process. The synthesized materials were characterized various instrumental analysis via power XRD, UV–vis DRS, FESEM EDX spectroscopy. samples utilized as competent photocatalysts for the remediation wastewater. visible light-driven photocatalytic performances of assessed photodegradation methylene blue. Compared to pure ZnO, ZnO/C photocatalyst showed...

10.1016/j.jksus.2019.10.003 article EN cc-by-nc-nd Journal of King Saud University - Science 2019-10-25

This work examines the cooperative effect between Zr doping and oxygen vacancy engineering in anodized TiO2 nanotubes (TNTs) for enhanced reduction reactions (ORRs). dopant annealing conditions significantly affected electrocatalytic characteristics of grown TNTs. results Zr4+ substituted Ti4+ species, which indirectly creates donors that enhance charge transfer kinetics reduce carrier recombination TNT bulk. Moreover, vacancies promote creation unsaturated Ti3+(Zr3+) sites at surface, also...

10.3390/nano14040366 article EN cc-by Nanomaterials 2024-02-16

A carbon aerogel (CA)-assisted CdS nanocomposite was prepared by hydrothermal process and investigated as a photocatalyst towards the photodegradation of methylene blue (MB) dye colorless phenol under visible light irradiation (VLI). have attracted wide attention due to their relatively narrow band gap for effect suitably negative potential conduction (CB) edge neutralization H+ ions. The obtained characterization results suggest that CA-assisted has enhanced photophysical properties, more...

10.3390/cryst10040300 article EN cc-by Crystals 2020-04-14

The objective of the research is to develop novel materials that are both inexpensive and have a low density, while also being able endure transportation γ-photons with low-to-medium energy levels. outcome consisted four epoxy resins were strengthened different quantities heavy metallic waste. density formed composites improved from 1.134 ± 0.022 g/cm3 1.560 0.0312 when waste content was raised 0 40 weight percent. theoretical investigation determined using Monte Carlo (MCNP) simulation...

10.3390/polym16101415 article EN Polymers 2024-05-16

Abstract In this study, sodium titanate (ST)/iron oxide (Fe 2 O 3 ) was successfully prepared as a novel binary photocatalyst for the first time to enhance photocatalytic activity. The used in photodegradation of methylene blue (MB) dye under sunlight and tungsten lamp. green synthesis method using orange peel extract employed prepare Fe , while hydrothermal synthesize ST. To achieve optimal efficiency, loading onto ST carefully controlled. average crystallite size ST, ST@Fe (with 1:1 wt%...

10.1515/ntrev-2024-0050 article EN cc-by Nanotechnology Reviews 2024-01-01

This work aims to prepare a new series of polyepoxide resins reinforced with mixture WO3 and Bi2O3 compounds. The effect replacing by on the radiation shielding parameters was experimentally evaluated using NaI (Tl) detector many radioactive sources, including 22Na, 133Ba, 137Cs, 60Co, 152Eu. linear attenuation coefficient for prepared polyepoxide-based composites improved when substituting increasing amounts Bi2O3. When increased from 2.164 2.943 cm−1 (at 33 keV) 0.073 0.104 1332 keV),...

10.1080/00295639.2024.2383105 article EN Nuclear Science and Engineering 2024-08-15

This work investigated the substitution of aldehyde with a pyran functional group in D-π-aldehyde dye to improve cell performance. strategy was suggested by recent that synthesized dye, which achieved maximum absorption wavelength only slightly off threshold for an ideal sensitizer. Therefore, DFT and TD-DFT were used investigate effect different substituents replace group. The groups reduced energy gap better than other known anchoring groups. proposed dyes showed facile intermolecular...

10.3390/molecules29174175 article EN cc-by Molecules 2024-09-03
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