Article
Materials Science, Ceramics
Baofei Hao, Jinpeng Guo, Lan Zhang, Huizhong Ma
Summary: Photocatalytic processes are promising and ecofriendly approaches to degrade organic pollutants in water. In this study, TiO2/CuO nanofilms doped with Cr were fabricated and optimized, resulting in improved photocatalytic activity. The addition of Cr increased the surface area and surface oxygen vacancies of TiO2 crystals, leading to better degradation performance.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Liwen Zhu, Xiu Cao, Jianrong Xiao, Songshan Ma, Shiwo Ta
Summary: The study showed that TiO2/Cu3N composite films have higher photocatalytic activity in degradation compared to pure TiO2 film, mainly due to the addition of Cu3N promoting the catalytic activity of TiO2. The composite films exhibit excellent photocatalytic performance and have potential application prospects in wastewater treatment.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Materials Science, Ceramics
Antia Villamayor, Thomas Pomone, Sergio Perero, Monica Ferraris, Victoria Laura Barrio, Eva G-Berasategui, Peter Kelly
Summary: High photocatalytic activity layers were obtained by combining a TiO2 nanostructured coating support with NiO layers synthesized by direct current (DC) magnetron sputtering. The TiO2 crystallinity was improved through the optimization of sputtering process parameters. The formation of a p-n heterojunction between the TiO2 and NiO layers significantly enhanced the degradation rates of methylene blue under UV light.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Chemical
Ning Liu, Hongsen Zhang, Qi Liu, Jiahui Zhu, Rongrong Chen, Jing Yu, Ying Li, Rumin Li, Jun Wang
Summary: In this paper, TiO2/FTO films were prepared using magnetron sputtering on the surface of FTO to achieve efficient extraction and desalination of U(VI) from seawater. The films demonstrated high extraction ratio and sterilization efficiency.
Article
Chemistry, Multidisciplinary
Grzegorz Wisz, Paulina Sawicka-Chudy, Maciej Sibinski, Dariusz Ploch, Mariusz Bester, Marian Cholewa, Janusz Wozny, Rostyslav Yavorskyi, Lyubomyr Nykyruy, Marta Ruszala
Summary: In this study, titanium dioxide/copper oxide thin-film solar cells were prepared using the reactive direct-current magnetron sputtering technique. The influence of the deposition time of the top Cu contact layer on the structural and electrical properties of photovoltaic devices was analyzed. The structural and morphological characterization of the TiO2/CuO/Cu2O solar cells was fully studied using X-ray diffraction (XRD), scanning electron microscopy (SEM), and current-voltage (I-V) characteristics.
Article
Chemistry, Physical
Baktiyar Soltabayev, Ahmad Ajjaq, Gani Yergaliuly, Yerkebulan Kadyrov, Amanzhol Turlybekuly, Selim Acar, Almagul Mentbayeva
Summary: This study aims to explore the advantages of titanium doping and magnetron sputtering over chemical-based methods on the surficial and electrical characteristics of ZnO films, specifically on their gas sensing performance. Pure ZnO nanofilm and Ti-doped ZnO nanofilms with different Ti contents were synthesized using RF magnetron sputtering. The nanofilms exhibited a pure hexagonal wurtzite structure, with relatively flat and homogenous surfaces and a clear distribution of nanoparticles in the Ti-doped samples. The enhanced properties of the nanofilms were reflected in the gas sensor's ultimate performance, with the 1 wt% Ti content sensor showing the best gas sensing performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Electrical & Electronic
Razia Noorbakhsh, Sahar Rezaee, Borhan Arghavani Nia, Arash Boochani
Summary: In this research, the surface morphology of nanometer silver-copper films doped with nitrogen impurity, prepared by direct current magnetic sputtering method at different time periods, was investigated using atomic force microscope data. The statistical data showed that the film's morphology properties changed with increasing sputtering time. The surface roughness of the films also increased with sputtering time, potentially due to particle growth.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Materials Science, Multidisciplinary
J. A. Borrego Perez, E. R. Morales, F. Paraguay Delgado, C. A. Meza Avendano, E. M. Alonso Guzman, N. R. Mathews
Summary: The study focuses on the deposition and analysis of TiO2 and Ag-dispersed TiO2 thin films for efficient water treatment applications. The physical and structural properties of the films were analyzed using various techniques. The presence of Ag nanoparticles on the film surface and throughout the thickness of the Ag: TiO2 thin films was confirmed. The Ag: TiO2 thin films showed a significant improvement in photocatalytic efficiency for the degradation of methylene blue.
Article
Materials Science, Multidisciplinary
Petronela Prepelita, Florin Garoi, Marius Dumitru, Valentin Craciun
Summary: Noble metal thin films of different thicknesses were obtained by radio frequency magnetron sputtering, with good surface morphology and optical behavior useful to metamaterial structures. They show potential applications in the space industry.
RESULTS IN PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Lan Zhang, Jinpeng Guo, Baofei Hao, Huizhong Ma
Summary: Photocatalysis reaction has been considered as an environmentally friendly plan for solving water pollution issue and counteracting environmental degradation. In this study, WO3/TiO2 membranes were fabricated and their surface morphology, structure, and photoelectric performance were investigated. The presence of oxygen defects was found to increase the carrier density. The heterojunctions exhibited superior photocatalytic performance under light illumination.
Article
Materials Science, Coatings & Films
J. A. Lenis, Elbert Contreras Romero, Abel Hurtado Macias, P. Rico, J. L. Gomez Ribelles, M. A. Pacha-Olivenza, M. L. Gonzalez-Martin, F. J. Bolivar
Summary: In this study, the surface of Ti6Al4V alloy, commonly used in implant fabrication, was modified with a novel biocompatible and antibacterial coating composed of multiple layers of hydroxyapatite (HA) and Ag. The coatings were characterized for their chemical and phase compositions, as well as their structural, topographical, and morphological properties. Mechanical properties were determined, and the biological response was evaluated using cell viability tests and bacterial viability tests. The results show excellent chemical and compositional control of the coatings, as well as high antibacterial potential and biocompatibility.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
G. Wisz, P. Sawicka-Chudy, A. Wal, P. Potera, M. Bester, D. Ploch, M. Sibinski, M. Cholewa, M. Ruszala
Summary: TiO2:ZnO/CuO thin-film solar cells were manufactured using reactive direct-current magnetron sputtering. For the first time, the TiO2:ZnO layers were used as an emitter in TiO2:ZnO/CuO solar cells. The structural and morphological characterization of the solar cells was studied using physical methods of investigation, and the photovoltaic behavior and optical properties were analyzed.
APPLIED MATERIALS TODAY
(2022)
Article
Materials Science, Multidisciplinary
Sunny Garg, Jyoti Kataria, Shweta Sharma, Manoj Kumar Choudhary
Summary: This research work presents a facile phytogenic process for fabricating Ag@TiO2 nanocomposites using fennel seed extract. The nanocomposites with varying silver content were characterized using spectroscopic and microscopic techniques. The photocatalytic activity of the nanocomposites was evaluated, and it was found that 3 wt% Ag@TiO2 nanocomposites exhibited outstanding performance. The enhanced photo efficacy of the phytogenically prepared Ag@TiO2 nanocomposites was attributed to the development of an efficient and stable schottky contact between Ag metal and TiO2 surface.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Polymer Science
Changliu Chu, Xuefeng Hu, Hongqin Yan, Yanyan Sun
Summary: Metallic nanoparticles like Cu and Ag were used to functionalize the surface of polypropylene fibers through magnetron sputtering, resulting in improved tensile strength, abrasion resistance, and antibacterial properties. However, the break extension and moisture regain decreased. This approach shows promise for creating multifunctional textiles.
Article
Materials Science, Coatings & Films
Adrien Chauvin, Gregory Savorianakis, Lukas Horak, Milan Dopita, Michel Voue, Stephanos Konstantinidis, Francois Reniers, Rony Snyders
Summary: A study on the synthesis of Al2O3-Ag cermet by reactive co-sputtering of Ag and aluminum in Ar/O2 gas mixtures is reported. The influence of important experimental parameters on the chemistry, morphology, and optical properties of the cermet coating is studied, and the photothermal property of the cermet is evaluated by measuring the surface elevation temperature under 1 sun irradiation. The data reveals that an absorbance of 0.92 and a surface temperature elevation up to 9.1 K can be reached after 30 min of illumination by optimizing the features of the cermet.
SURFACE & COATINGS TECHNOLOGY
(2023)