Article
Polymer Science
Ali Murat Surucu, Serkan Subasi, Aamar Danish, Osman Gencel, Azime Subasi, Togay Ozbakkaloglu
Summary: In this study, polymer/glass fiber fabric-based nanocomposite plates filled with different filler materials (barite, magnetite, and colemanite) and single-walled carbon nanotubes (SWCNTs) were fabricated. The mechanical properties, thermal conductivity, and radiation shielding properties of the specimens were evaluated. The results showed that the specimens filled with barite and magnetite exhibited adequate mechanical properties, especially in terms of Charpy impact strength. Barite-filled specimens outperformed colemanite and magnetite-filled specimens in terms of mechanical properties. Efficient dispersion techniques could further enhance the mechanical performance of the filler-modified specimens. Additionally, the thermal conductivity and radiation shielding properties of the specimens filled with filler materials were improved compared to specimens without fillers.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Construction & Building Technology
Ashraf M. Heniegal, Mohamed Amin, S. H. Nagib, Hassan Youssef, Ibrahim Saad Agwa
Summary: This paper investigated the use of ilmenite and magnetite as substitutes for fine aggregates in UHPHWC production and the addition of nano ferrosilicon to improve the density, compressive strength, and gamma-ray attenuation coefficient of the concrete.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Environmental Sciences
S. B. Mohamed Khalith, R. Rishabb Anirud, Raghavendra Ramalingam, Sathish Kumar Karuppannan, Mohammed Junaid Hussain Dowlath, Kumar Pandion, Balasubramani Ravindran, Soon WoongChang, Debnath Ovi, Mariadhas Valan Arasu, Savarimuthu Ignacimuthu, Naif Abdullah Al-Dhabi, Murugesan Chandrasekaran, Kantha Deivi Arunachalam
Summary: In this study, hexavalent chromium was efficiently removed from industrial effluent using magnetite carbon nanocomposites, demonstrating their effectiveness in wastewater treatment. The incorporation of iron oxide nanoparticles with highly porous carbon was confirmed through various spectroscopic and microscopic analyses, showcasing the potential for extending their application in environmental remediation.
ENVIRONMENTAL RESEARCH
(2021)
Article
Chemistry, Physical
Yufei Wang, Yue Wang, Gaofei Pan, Jian Huo, Ruiguang Xing, Xin Ge
Summary: Due to the rapid development of information and electronic technologies, there is an urgent need to design and prepare new materials with electromagnetic interference (EMI) shielding function to reduce electromagnetic pollution. In this study, a thin magnetic Ti3C2Tx MXene (MMX) nanocomposite film was successfully obtained by combining Ti3C2Tx MXene nanosheets with porous magnetic microspheres (PMMs), exhibiting excellent EMI shielding performance. The lamellar structure of Ti3C2Tx MXene nanosheets provides flexibility to the MMX nanocomposite film, while PMMs enhance the attenuation ability of the film to electromagnetic wave energy. The rough surface of PMMs improves electromagnetic wave consumption and enhances the performance of Ti3C2Tx MXene EMI shielding nanocomposites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Ahmad A. Ahmad, Qais M. Al-Bataineh, Areen A. Bani-Salameh, Ahmad D. Telfah
Summary: In this study, PEO-PVA/MWCNTs nanocomposite films were fabricated and characterized. The results showed that the introduction of MWCNTs affected the optical properties and electrical conductivity of the films.
SURFACES AND INTERFACES
(2022)
Article
Construction & Building Technology
Lincheng Luo, Zhenfu Chen, Qiuwang Tao, Liping Xie, Dan Jin, Zhujing Li, Du Deng
Summary: The effects of high temperatures on the properties of radiation shielding concrete were investigated in this study. It was found that the relative velocity and damage index had a good correlation with the splitting tensile strength, indicating their potential for accurately assessing the failure of concrete under high temperatures. Additionally, severe spalling was observed in the barite concrete at 450 degrees Celsius, while the magnetite concrete exhibited better thermal stability and shielding performance.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Engineering, Environmental
Yan Sun, Ruonan Ding, Sung Yong Hong, Jinwoo Lee, You-Kyong Seo, Jae-Do Nam, Jonghwan Suhr
Summary: By mimicking the unique layered brick-and-mortar microstructures of nacre, MXene-xanthan nanocomposite films have successfully improved mechanical properties and electrical conductivity. These nanocomposite films not only show excellent performance in electromagnetic interference shielding and Joule heating, but also demonstrate great potential for use in electronics or biomedical devices.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Jaroslav Stejskal, Irina Sapurina, Jarmila Vilcakova, Marek Jurca, Miroslava Trchova, Zdenka Kolska, Jan Prokes, Ivo Krivka
Summary: The study fabricated a conductive melamine/polypyrrole/magnetite ferrosponge by depositing polypyrrole on a sponge via the oxidation of pyrrole with iron(III) chloride, followed by treatment with ammonia solution to produce magnetite. The composite sponge was characterized by FTIR spectroscopy for its molecular structure, and its conductivity was found to be dependent on compression. The sponge showed promising performance in electromagnetic radiation shielding in the GHz region, with polypyrrole providing radiation reflection and magnetite contributing to absorption.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Ahmad M. Alsaad, A. B. Migdadi, Ahmad A. Ahmad, Qais M. Al-Bataineh, Ahmad Telfah
Summary: In this study, PEO/B4C nanocomposite films with various concentrations of B4C-NPs were fabricated by the casting method. The properties of these films, including chemical and crystal structure, thermal, optical, electrical, and morphological properties, were examined. The results showed that the addition of B4C-NPs reduced the crystallinity and melting enthalpy of the films. The introduction of B4C-NPs also resulted in a reduction in transmittance, refractive index, and packing density, as well as an increase in conductivity. The SEM images revealed the presence of nanoparticles within the polymer matrix, accumulative nanoparticles on the surface, and cracks in the PEO/B4C nanocomposite films.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Optics
Gyanesh Soni, Niharika Gouttam, Vrinda Joshi
Summary: Using solution casting method, thin films of PMMA with SiO2 and ZnO composite were produced and the concentration of the dopant ZnO and SiO2 nanoparticles were varied. The results showed that the optical and radiation shielding properties were directly proportional to the concentration of nanoparticles.
Article
Polymer Science
Saad Alshahri, Mohammed Alsuhybani, Eid Alosime, Mansour Almurayshid, Alhanouf Alrwais, Salha Alotaibi
Summary: Newly developed polymer-based composites with potential applications in radiation shielding have been studied. By incorporating Bi2O3 nanofillers into LDPE polymers, a lead-free alternative for X-ray radiation shielding has been discovered, with advantages such as increased density, slightly improved strength and modulus, as well as cost-effectiveness. Experimental results showed a clear enhancement in shielding efficiency for the composites after adding fillers, demonstrating the potential for practical applications.
Article
Materials Science, Composites
Yuanyuan Yao, Shaohua Jin, Dongxu Wang, Junfeng Wang, Dongze Li, Xijuan Lv, Qinghai Shu
Summary: This study developed a nanocomposite film with excellent electromagnetic interference (EMI) shielding properties by coating silver nanowires with polydopamine, attaching them to graphene, and loading magnetic particles. The resulting film showed flexible and fine EMI shielding performance in both GPS band and X band, making it a promising material for flexible electronics and electromagnetic countermeasure applications.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Characterization & Testing
Qing Li, Yujuan Guo, Chaoliu Ouyang, Shunmin Yi, Sheng Liu
Summary: Polydopamine (PDA), also known as artificial melanin, was used to prepare a series of porous highly fluorinated polyimide/polydopamine (FPI/PDA) films via cyclodehydration. The films showed reinforced thermal, mechanical, UV-shielding, and photostability properties due to the hydrogen bond and porous structure. The addition of PDA improved the tensile strength and fracture elongation, reaching a maximum at 0.5 wt % PDA content. The porous FPI/PDA film exhibited excellent UV-shielding properties and visible light transmittance, as well as durability after UV irradiation.
Article
Nuclear Science & Technology
Kadir Gunoglu, Iskender Akkurt
Summary: In this study, linear attenuation coefficients of concretes containing different rates of basalt-magnetite aggregates were measured for gamma energies emitted from radioactive sources. The results showed a linear relationship between the linear attenuation coefficients and the basalt-magnetite ratio. The experimental and theoretical results were found to be compatible, indicating the importance of basalt-magnetite as an aggregate in developing concrete with radiation shielding properties.
PROGRESS IN NUCLEAR ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Yali Zhang, Kunpeng Ruan, Junwei Gu
Summary: Sandwich-structured EMI shielding nanocomposite films were prepared using electrospinning-laying-hot pressing technology, showing excellent EMI shielding, thermal conductivities, and mechanical properties. Compared to traditional methods, the novel sandwich structure exhibited superior performance with lower filler content.
Article
Plant Sciences
R. A. El-Motaium, A. E. A. Shaban, S. H. Badawy, A. S. A. Ibrahim
JOURNAL OF PLANT NUTRITION
(2019)
Article
Plant Sciences
A. E. A. Shaban, R. A. El-Motaium, S. H. Badawy, A. S. A. Ibrahim
JOURNAL OF PLANT NUTRITION
(2019)
Article
Toxicology
Sayed M. Badawy
TOXICOLOGY MECHANISMS AND METHODS
(2020)
Article
Chemistry, Analytical
Sayed M. Badawy
Summary: Validation and comparison of detection of malathion and fenitrothion pesticides using an enzymatic method based on cholinesterase inhibition were studied. The results showed linear relationships for both pesticides, indicating they could be accurately represented by the kinetic equation of non-competitive inhibition. The study obtained inhibition constants and IC50 values for malathion and fenitrothion, demonstrating good precision and effective extraction methods for determining fenitrothion in tomato matrix.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Sayed M. Badawy
JPC-JOURNAL OF PLANAR CHROMATOGRAPHY-MODERN TLC
(2020)
Article
Environmental Sciences
Sayed M. Badawy
Summary: Enzyme inhibition assay was used to detect organophosphates pesticides, with an optimized reaction time of 3 minutes for quantitative determination of fenitrothion. The reaction time affected the linearity of the noncompetitive inhibition equation, and enzyme inhibition reached a plateau at 5 minutes after pesticide addition.
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES
(2021)
Article
Chemistry, Multidisciplinary
Ali Hashem, Chukwunonso Onyeka Aniagor, Sayed Mohamed Badawy, Ghada Mohamed Taha
Summary: A novel biosorbent 'Manna_COOH' was synthesized by dual reaction stages, with high carboxyl content. The oxygen-based surface functional groups on 'Manna_COOH' played a major role in making it a promising biosorbent for aqueous Co (II) uptake. The study assessed the cobalt ion adsorption capacity of the biosorbent under various process conditions, showing promising results.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Sayed M. Badawy
Summary: Multi-stage freezing-melting process of seawater samples can reduce salinity progressively, producing purer drinking water. Study shows that salinity decreases in a geometric progressive manner with freezing-melting cycles, and gradual melting of frozen water layers under temperature gradient affects the formation of salt ice in an exponential manner.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Chukwunonso O. Aniagor, Ghada M. Taha, Sayed M. Badawy, Mehrez E. El-Naggar, A. Hashem
Summary: The study demonstrated the successful attachment of abundant amino groups onto acrylic fiber to form a hydrogel capable of adsorbing lead ions. The Ac-EDA showed effective uptake of lead ions in aqueous solution.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Environmental Sciences
A. Hashem, Chukwunonso O. Aniagor, M. Fikry, Ghada M. Taha, Sayed M. Badawy
Summary: The adsorption potential of raw pomegranate peel powder (PMPP) for lead (Pb) ions was studied. The PMPP was extensively characterized using various analytical techniques. The isotherm and kinetic models were used to describe the experimental data. The study showed that PMPP can efficiently remove lead ions.
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
(2023)
Article
Crystallography
Mahmoud A. Hamad, Hatem R. Alamri, Sameh M. Elghnam, Sayed M. Badawy
Summary: A phenomenological model (PM) is used to simulate the magnetocaloric effect (MCE) of a HoCo2 sample, and MCE parameters are inferred from the model. The HoCo2 sample exhibits two consecutive conventional MCEs with cooling via adiabatic demagnetization and shows double peak MCE behavior. It is recommended to use HoCo2 as a useful magnetic refrigeration material over a temperature range of 0-140 K because of its wide MCE spanning range, particularly for liquefaction of nitrogen and hydrogen.
Correction
Chemistry, Analytical
Sayed M. Badawy
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2021)
Article
Emergency Medicine
Eman Abdel Monem Abdel Rasheed, Nashwa Elmahdy, Ezzeldin Shalaby, Huda S. Karoube, Sayed M. Badawy
EURASIAN JOURNAL OF EMERGENCY MEDICINE
(2020)
Article
Engineering, Environmental
A. Hashem, S. M. Badawy, S. Farag, L. A. Mohamed, A. J. Fletcher, G. M. Taha
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2020)
Article
Green & Sustainable Science & Technology
Sayed M. Badawy, Abd ElAziz A. Nayl
JOURNAL OF SUSTAINABLE METALLURGY
(2019)
