A5055905586- ZnO doping and properties
- Copper-based nanomaterials and applications
- Chalcogenide Semiconductor Thin Films
- Nonlinear Optical Materials Studies
- Electronic and Structural Properties of Oxides
- Gas Sensing Nanomaterials and Sensors
- Porphyrin and Phthalocyanine Chemistry
- Graphene research and applications
- Carbon Nanotubes in Composites
- Polymer Nanocomposite Synthesis and Irradiation
- Advancements in Battery Materials
- Conducting polymers and applications
- Advanced Nanomaterials in Catalysis
- Nonlinear Optical Materials Research
- Advanced Semiconductor Detectors and Materials
- Crystal Structures and Properties
- Diversity and Career in Medicine
- Medical Education and Admissions
- Carbon and Quantum Dots Applications
- Gold and Silver Nanoparticles Synthesis and Applications
- Ammonia Synthesis and Nitrogen Reduction
- Biomarkers in Disease Mechanisms
- Advanced Radiotherapy Techniques
- Solid-state spectroscopy and crystallography
- Radiation Therapy and Dosimetry
King Abdulaziz University
2017-2024
Umm al-Qura University
2024
Bridge University
2021
University of Tabuk
2021
University Research Co (United States)
2021
Taibah University
2021
Abstract Currently, highly efficient nano photocatalysts driven by visible light are being developed for organic pollutant removal and bioimaging applications. Carbon quantum dots (CQDs) have been shown to enhance the photocatalytic activity of nanocomposites. In this work, we report surface modification a polyaniline (PANI) photocatalyst using hydrothermally produced CQDs. The synthesized nanocomposite (CQDs/PANI) was characterized advanced analytical techniques. These studies confirmed...
Objectives: To measure the knowledge and awareness about risk factors of osteoporosis among young females in King Abdullah Female City at Al-Imam Mohammed ibn Saud Islamic University. Methods: This was cross-sectional study based on self-administered questionnaire. Osteoporosis Knowledge Assessment Tool (OKAT) used for data collection, OKAT will assess understanding symptoms fractures, preventive such as physical activity, diet treatment availability. The participants were all female...
Herein, zinc oxide (ZnO) nanocrystalline powders with different aluminum (Al) concentrations (from 0 to 4 wt%) have been successfully synthesized via sol–gel technique. The structure and morphology of the Al‐doped ZnO (AZO) nanoparticles are investigated using X‐ray powder diffraction (XRD) scanning electron microscopy. XRD results reveal reduction in crystallite size increasing Al doping ratio. phase is observed all samples no extra peaks. In addition, UV–vis diffuse reflectance...
Zinc sulfide (ZnS) nanoparticles were fabricated using the chemical precipitation method. The X-ray diffraction (XRD), Raman spectroscopy, and scanning electron microscopy (SEM) techniques used to investigate structural parameters of formed ZnS. hexagonal crystal structure Zn ZnS phases was formed. average crystallite size phase is 10.3 nm, which much smaller than that (54.5 nm). Several frequencies phonon modes detected in scattering spectrum belonging nanoparticles. synthesized as...
In this framework, nanostructured zinc oxide (ZnO) adsorbents were formed using the solid-solid reaction method.The crystal structure and morphology of ZnO investigated X-ray powder diffraction scanning electron microscopy techniques.The crystallized in hexagonal close-packed (hcp) structure, while average crystallite size particle found equal to 22 ± 5 55 10 nm, respectively.The adsorption efficiency nanoparticles (NPs) for removing an extreme quantity potassium permanganate (KMnO 4 )...
Abstract In the present work we investigate influence of deposition sequences on two layers forming a CuO/Zinc oxide (ZnO) heterojunction. Both are prepared using simple and cost-effective technique spray pyrolysis. The advantage this is ability to deposit both successively without interruption. For purpose, four devices by successfully changing order ZnO CuO layers, after delay for cooling first deposited layer. I – V characteristics realized reveal that plays crucial role in device’s...
Otorhinolaryngology (ORL) specialists treat patients of different ages, ranging from elderly with head and neck tumors to neonates respiratory problems. No studies have been conducted explore the factors that affect preference for ORL among Umm Al-Qura University students. We aimed investigate motivators influencing medical students at in Makkah, Saudi Arabia, who choose pursue a career ORL-head surgery.
Abstract This study reports a novel, cost-effective and reproducible method of densifying carbon nanotubes into bundles during growth stage. is achieved by utilizing Fe 3 O 4 catalyst nanoparticles microwave plasma-enhanced chemical vapor deposition. The grown CNTs were characterized using TEM, SEM Raman spectrometer. site density 5 × 10 9 m –2 , with an inter-bundle distance 14 μm bundle height 17 μm. A qualitative investigation was carried out, possible densification mechanism proposed....
Abstract Phthalocyanines are of a broad interest in photovoltaic applications. In this study, films titanium-phthalocyanine-chloride (TiPcCl 2 ) were prepared by the thermal evaporation method. The molecular structure was studied Raman spectrometer, showing match between spectra powder and films. films' surface examined atomic force microscope, revealing grain size roughness TiPcCl thin to be 223 41 nm, respectively, for 100 nm thickness. energy gap determined 1.5 eV, with no observable...