Rehab M. El‐Sharkawy

ORCID: 0000-0003-1750-2165
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Research Areas
  • Radiation Shielding Materials Analysis
  • Graphite, nuclear technology, radiation studies
  • Polymer Nanocomposite Synthesis and Irradiation
  • Chemical Synthesis and Characterization
  • Adsorption and biosorption for pollutant removal
  • Radioactive element chemistry and processing
  • Nuclear materials and radiation effects
  • Polymer Nanocomposites and Properties
  • Covalent Organic Framework Applications
  • Radioactivity and Radon Measurements
  • Nanomaterials for catalytic reactions
  • Luminescence Properties of Advanced Materials
  • Glass properties and applications
  • Layered Double Hydroxides Synthesis and Applications
  • Advanced Photocatalysis Techniques
  • Environmental remediation with nanomaterials
  • Tribology and Wear Analysis
  • Boron Compounds in Chemistry
  • Natural Fiber Reinforced Composites
  • Advanced X-ray and CT Imaging
  • Clay minerals and soil interactions
  • Pigment Synthesis and Properties
  • Geochemistry and Elemental Analysis
  • Concrete and Cement Materials Research
  • Thermal and Kinetic Analysis

Pharos University in Alexandria
2017-2025

Division of Chemistry
2021

Alexandria University
2017-2019

ABSTRACT This research discusses the mechanical behavior and microstructure of high‐density polyethylene (HDPE)‐based composites, manufactured using melt‐mixing thermal‐pressing techniques, where HDPE is mixed with various percentages either bulk lead monoxide (bulk PbO) or PbO nanoparticles (PbO‐NPs) acting as fillers. The scanning electron microscope field emission transmission were utilized to identify morphology polymeric composites. Both showed proper dispersion in matrix without...

10.1002/app.47812 article EN Journal of Applied Polymer Science 2019-04-09

Abstract A comparative study has been conducted by using Monte Carlo FLUKA code and Microshieldsoftware programs to the radiation shielding properties of plastic waste mixed with nano copper oxide (CuO) phosphotungstic acid (PTA). The variousdiverse percentages new nanocomposite have prepared compression moulding technique, then they are characterized Fourier transfer infrared spectrophotometer (FT‐IR), thermal gravimetric analysis (TGA), X‐ray diffraction (XRD). established as a effective...

10.1002/zaac.202100062 article EN Zeitschrift für anorganische und allgemeine Chemie 2021-03-05

Abstract The study investigated new nanocomposites’ γ -ray and neutron shielding properties based on raw attapulgite, a clay matrix intercalated with different weight percentages of mixed nano metal oxides CdO PbO. various were as follows: (100–2 x )% Attapulgite + %CdO %PbO, abbreviated (AT 100–2 Cd Pb ), where = 5, 10, 15%. nanocomposites characterized using XRD, FTIR, EDX, confirming their successful preparation. SEM images revealed that the oxide nanoparticles successfully into layers...

10.1088/1402-4896/ad3b48 article EN cc-by-nc-nd Physica Scripta 2024-04-05

Abstract Objective This study aimed to investigate and compare the histological response of rabbit dental pulp after direct capping with 3 different materials: mineral trioxide aggregate (MTA), nanoparticles fluorapatite (Nano-FA), hydroxyapatite (Nano-HA) 4 6-week time intervals. Material methods A total 72 upper lower incisor teeth from 18 rabbits were randomly categorized into groups)24 incisors six each. MTA Group: capped MTA. Nano-FA nanoparticles. Nano-HA Blood samples collected...

10.1186/s12903-024-05285-4 article EN cc-by BMC Oral Health 2025-01-04

It has been confirmed from an experimental, as well a theoretical, standpoint that metal oxide polymer nanocomposites (MPNCs) represent new category of advanced materials effective in radiation shielding. In this study, novel (PP/CdO-NPs-NBent) ternary were designed, based on doping polypropylene (PP) with two different nanofillers, namely cadmium nanoparticles (CdO-NPs) and nano-bentonite (NBent), to function promising alternatives for γ-ray The PP/(x)CdO(40-x)NBent samples x = 0.0, 10.0,...

10.1002/er.6427 article EN International Journal of Energy Research 2021-01-21

In this study, nano-scaled shielding materials were assembled and fabricated by doping different weight percentages of Nano-mercuric oxide (N-HgO) into Nano-Bentonite (N-Bent) based on using (100-x% N-Bent + x% N-HgO, x = 10, 20, 30, 40 wt %). The N-HgO/N-Bent nanocomposites characterized FT-IR, XRD, SEM evaluated to evaluate their properties toward gamma radiation four γ-ray energies form three point sources; 356 keV from 133Ba, 662 137Cs as well 1173, 1332 60Co. γ-rays mass attenuation...

10.1016/j.net.2021.12.026 article EN cc-by-nc-nd Nuclear Engineering and Technology 2021-12-23

A novel magnetic starch-crosslinked-magnetic ethylenediamine nanocomposite, NFe<sub>3</sub>O<sub>4</sub>Starch-Glu-NFe<sub>3</sub>O<sub>4</sub>ED, was synthesized <italic>via</italic> microwave irradiation for the removal of Cr(<sc>vi</sc>) ions from aquous solution using batch adsorption technique.

10.1039/d1ra00961c article EN cc-by-nc RSC Advances 2021-01-01
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