Article
Chemistry, Inorganic & Nuclear
Ashish Bhagat, Akhil Kokkiripati, Bhaskar Bhaduri
Summary: This study focuses on synthesizing spherical shaped Ag NPs on a support of magnetic nickel ferrite/oxidized graphite. The synthesized material successfully incorporates nano-sized Ag and NiFe2O4 NPs onto the O-graphite surface. The material exhibits excellent catalytic activity towards the reduction of P-nitrophenol (P-NP). The synergy between nano-sized Ag NPs and magnetic NiFe2O4/O-graphite support plays a key role in enhancing the catalytic activity.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
S. H. Mohamed, Mohd Taukeer Khan, Abdullah Almohammedi, M. A. Awad
Summary: The study synthesized mixed zinc tin oxide nanowires with different Zn contents and investigated their structural, photophysical properties, and optical performance. The results showed that the optical band gap decreased, Urbach energy increased, and refractive index values rose with increasing Zn content, while the absorption spectra displayed red shift and new bands.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Nuengruethai Ekthammathat, Anukorn Phuruangrat, Thirawit Phonkhokkong, Wachiraporn Maisang, Patcharanan Junploy, Arrak Klinbumrung, Somchai Thongtem, Titipun Thongtem
Summary: Mn-doped ZnO samples were successfully synthesized using sonochemical method, with XRD showing peak shifts due to Mn2+ incorporation. SEM and TEM observations revealed morphological changes in Zn1-xMnxO at different doping concentrations. The highest saturation magnetization was observed in 3 mol% Mn-doped ZnO, while 5 mol% Mn-doped ZnO exhibited suppressed ferromagnetic properties due to Mn cluster formation.
Article
Materials Science, Multidisciplinary
Ahmed H. Hammad, M. Sh Abdel-wahab, Asim Jilani
Summary: In this study, zinc oxide thin films doped with various ratios of niobium were successfully synthesized using direct current/radio frequency sputtering technique. The effects of niobium on the films were examined through XPS, XRD, and atomic force microscopy. As the niobium content increased, changes in the physical structure, roughness, and optical properties of the ZnO films were observed and confirmed.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Physics, Multidisciplinary
M. A. Awad, Ahmed M. Abu-Dief
Summary: By adding Tb2O3 to CdO nanoparticles, the performance of CdO can be tuned to enhance its stability and photoluminescence intensity. Adding 5% Tb2O3 can maximize the crystallite size of CdO nanoparticles and result in the highest photoluminescence intensity.
Article
Chemistry, Inorganic & Nuclear
Ch. Rambabu, K. Subrahmanya Sarma, Ch. Shivanarayana, U. Padmavathi, R. Swetha, K. Raju, Khalid Mujasam Batoo, N. Murali, Ritesh Verma, P. V. Lakshminarayana
Summary: The substitution of La-Cu in nano hexagonal ferrites of Strontium had effects on the structural and magnetic properties, leading to a decrease in crystallite sizes and unit cell parameters, as well as an increase in saturation magnetization with doping levels.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Polymer Science
Jihua Duan, Guichang Jiang
Summary: A novel physically crosslinked polyurethane (PUII) based on isophorone diisocyanates was successfully prepared and characterized. The PUII exhibited various self-assembly morphologies and showed enhanced antibacterial effect when supplemented with an antibacterial agent. Additionally, the antimicrobial polyurethane films displayed good mechanical properties.
Article
Optics
Tahani A. Alrebdi, Hoda A. Ahmed, Emaan Alsubhe, Fatemah H. Alkallas, Eman A. Mwafy, Rami Adel Pashameah, Arafat Toghan, Ayman M. Mostafa
Summary: In this study, laser ablation in liquid was used to generate dispersed NiO nanoparticles, which were then incorporated into a PVA structure, making it a promising adsorbent for removing phosphate from aqueous solution.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Energy & Fuels
Mostafa Othman, Tian Zhang, David P. McMeekin, Sebastian O. Fuerer, Wenxin Mao, Weilun Li, Andrew D. Scully, Anthony S. R. Chesman, Philip N. H. Nakashima, Udo Bach, Joanne Etheridge
Summary: The use of guanidinium iodide (GAI) cation as an interface engineering technique in perovskite solar cells improves stability by passivating defects on surfaces and grain boundaries. However, the relationship between structural and photophysical properties is not well understood. This study demonstrates that an optimal concentration of GAI can eliminate excess PbI2, improve crystallinity, and increase grain size. Higher concentrations induce the formation of new phases and reduce crystallinity and grain size. GAI treatment also helps remove microscale heterogeneities, resulting in optimum device performance.
Article
Materials Science, Multidisciplinary
B. V. Padlyak, I. I. Kindrat, V. T. Adamiv, Y. O. Kulyk, I. M. Teslyuk, A. Drzewiecki, I. Stefaniuk
Summary: The Li2B4O7:Cu,Eu glass doped with 1.0 mol.% CuO and Eu2O3 impurities was investigated using XRD, EPR, optical absorption, and photoluminescence techniques. The local structure parameters were determined by analyzing XRD data. The results reveal the incorporation of Cu2+ and Cu+ ions in the Li2B4O7 glass, as evidenced by EPR and optical absorption spectroscopy. The optical properties, such as optical absorption spectrum, band gap, and Urbach energy, were also studied. The photoluminescence analysis showed the presence of broad blue emission from Cu+ ions and narrow emission bands from Eu3+ ions.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Physics, Condensed Matter
Parul Sharma, Pragati Singh, Kamni
Summary: This study systematically investigated Mn2+ doped KSrVO4 nanophosphors synthesized by low-cost combustion method, revealing their structural and spectral properties through various characterization techniques. The doping of Mn2+ was found to affect the band gap and PL spectra, indicating the potential application of these nanophosphors excited by InGaN LEDs emitting UVA light.
PHYSICA B-CONDENSED MATTER
(2021)
Article
Materials Science, Multidisciplinary
Khurshaid Ahmad Malik, Javied Hamid Malik, Aadil Ahmad Bhat, Insaaf Assadullah, Radha Tomar
Summary: The Gd-doped ZnO nanostructures synthesized through the hydrothermal route exhibit good optical properties, enhanced photoluminescence activity, and can be applied in various fields such as sensors, UV-Lasers, phosphors, LEDs, and luminescent biolabels. The enhancement in luminescent property is attributed to an increase in crystallinity, complex defects, and electron-hole pair recombination rate.
Article
Chemistry, Multidisciplinary
Teng-Xiang Huang, Meek Yang, Hannah Giang, Bin Dong, Ning Fang
Summary: The development of nanomaterials, particularly two-dimensional layered materials, has advanced the applications of biosensors based on field-effect transistors. The unique properties of these materials allow for highly sensitive detection of biomolecules. Understanding the correlation between the structural features and the adsorption of bioreceptors is crucial for developing efficient biosensors. In this study, a super-resolution fluorescence imaging method was used to investigate the adsorption of antibody fragments on two-dimensional layered molybdenum disulfide. The findings can be applied to other types of layered materials and contribute to improving biosensors' sensitivity through defect engineering.
Article
Engineering, Environmental
Antonio J. Munoz, Francisco Espinola, Encarnacion Ruiz, Aneli M. Barbosa-Dekker, Robert F. H. Dekker, Eulogio Castro
Summary: Two types of Botryosphaeria rhodina MAMB-05 biomass (VMSM and M3) were found to effectively remove Ag(I) ions from synthetic solutions, demonstrating the involvement of various mechanisms in biosorption such as bioadsorption, complexation, ion exchange, and covalent bonding, resulting in the formation of silver chloride nanoparticles and silver nanoparticles. The sizes of the nanoparticles were determined using X-ray microfluorescence and Fourier-transform-infrared spectroscopy, and it was also observed that some silver nanoparticles remained in solution after biosorption, potentially facilitating their recovery.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Materials Science, Ceramics
S. Yu. Sokovnin, N. Pizurova, V. G. Ilves, P. Roupcova, M. G. Zuev, M. A. Uimin, M. V. Ulitko, O. A. Svetlova
Summary: ZrO2 and Ag doped ZrO2 powders were prepared and characterized. The Ag doped ZrO2 powders showed enhanced photocatalytic activity and cytotoxicity.
CERAMICS INTERNATIONAL
(2022)
