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Scopus Research — Shahad Ali Hammood Al-kawaz
Material Engineering • Material Engineering
2
Total Research
53
Total Citations
2023
Latest Publication
1
Publication Types
Showing 2 research papers
2023
1 paper
International Journal of Hydrogen Energy
, Vol. 48 (85), pp. 33155-33165
Institute of Nano Science and Nano Technology, University of Kashan, P. O. Box. 87317-51167, Kashan, Iran; Al-Manara College for Medical Sciences (Maysan), Iraq; Biomedical Engineering Department, Al-Mustaqbal University College, Babylon, Iraq; Department of Medical Instruments Engineering Techniques, Al-Farahidi University, Baghdad, Iraq; College of Medical Technology, Medical Lab Techniques, Al-Kitab University, Iraq; Department of Medical Laboratories Technology, Al-Nisour University College, Baghdad, Iraq
Due to the unintentional spilling or dumping of dirty wastewater into rivers, which has a significant impact on the quality of water resources, the textile sector poses a global pollution concern. In this study, thulium vanadate (TmVO4) was prepared by multiple fabrication techniques, including Pechini, sonochemical, microwave, and co-precipitation. The effect of these fabrication methods on the purity, morphology, shape, and size of as-prepared TmVO4 was investigated. Characterization tests revealed that when the Pechini method was used at pH = 10, better morphology and uniform nanorods were formed. The effect of the preparation methods on photocatalytic activity was also discovered, with higher efficiency (71.7%) achieved over TmVO4 prepared by the Pechini process at pH = 10 under visible light after 90 min. © 2023 Hydrogen Energy Publications LLC
Keywords:
Pechini method
Photocatalyst
TmVO<sub>4</sub> nanostructures
Water pollution
2022
1 paper
International Journal of Nanoscience
, Vol. 21 (4)
Al-Mustaqbal University College, Research and Studies Unit, Babil, Hilla, 51001, Iraq; College of Medical and Health Technologies, Al-Zahraa University for Women, Iraq; Department of Biomedical Engineering, College of Engineering, University of Warith Al-Anbiyaa, Kerbala, Iraq; Department of Physiology and Medical Physics, Babylon University, Babylon, Iraq; National University of Science and Technology, Dhiqar, Iraq; Medical Laboratory Technology Department, College of Medical Technology, The Islamic University, Najaf, Iraq; Department of Medical Physics, Hilla University College, Babylon, Iraq; School of Biological Sciences and Biotechnology, Goa University, India
The structural, morphology, and optical properties of a new hybrid structure prepared from CuO nanoparticles embedded in a Fe2O3-PVA composite matrix were investigated in this work. Field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), absorption and transmission spectra, and Fourier transform infrared spectroscopy (FT-IR) were all used to analyze the prepared materials. Crystallography information revealed the presence of CuO that did not affect the crystal structure of PVA-Fe2O3. The prepared composites revealed strong absorption in the range of 440-570 nm. It was observed that the highest absorption of these composites gradually shifted to the shorter wavelength region with the presence of CuO. PVA-Fe2O3 is highly transparent, with a transmittance of around 85% in the range of 600-800 nm. After the addition of 5% by weight of CuO nanoparticles, the transmittance of the nanocomposite drops to 75% in the same range of wavelength. The prepared materials were used as anti-cancer cells, and they showed high efficacy to kill tumor cells, especially PVA-Fe2O3-CuO at concentration 0.5 μg/mL. © 2022 World Scientific Publishing Company.
Keywords:
biomedical applications
CuO NPs
Fe<sub>2</sub>O<sub>3</sub>NPs
Magnetic nanoparticles
nanocomposites