Article
Materials Science, Multidisciplinary
Makoto Hirota, Yoshihiko Sugita, Manabu Ishijima, Takayuki Ikeda, Juri Saruta, Hatsuhiko Maeda, Takahiro Ogawa
Summary: The study demonstrates that UV treatment significantly restores osteoconductivity compromised by bacterial biofilm contamination on titanium surfaces, leading to increased bone-implant integration and bone formation, providing new possibilities for clinical applications.
MATERIALS TODAY ADVANCES
(2021)
Article
Engineering, Environmental
Rudzani Ratshiedana, Olayemi Jola Fakayode, Ajay Kumar Mishra, Alex Tawanda Kuvarega
Summary: The study focuses on the impact of silver ion doping on the photocatalytic activity of titanium dioxide for the degradation of tartrazine. Results show that optimal degradation of tartrazine can be achieved with a certain amount of doping, suggesting potential applications for removing similar organic pollutants from water.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Materials Science, Ceramics
Tingting Xiong, Yin Ye, Bin Luo, Liping Shen, Dongmei Wang, Meikun Fan, Zhengjun Gong
Summary: The 3D TA-TiO2-GA with network architectures and in situ growth of TiO2 NPs showed excellent photocatalytic performance and reusability in degrading organic contaminants. Mechanistic studies revealed the important roles of adsorption and photocatalysis, with superoxide radical anions and hydroxyl radicals as major reactive oxidative species. This study provides a novel alternative for solar light-driven environmental applications.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Mohammad Qamar, Shabi Abbas Zaidi, Mohd Rafatullah, Mohammad Qutob, Sun-Jae Kim, Qasem A. Drmosh
Summary: The present study investigates the thermal stability and photocatalytic activity of TiO2-based nanotubes after post-hydrothermal treatment. It is found that post-hydrothermal heating improves the photocatalytic activity of the nanotubes by changing their phase structure and morphology. The holes and hydroxide ions are found to play a key role in the dye removal process. Additionally, the photocatalyst exhibits excellent stability and reusability.
Article
Chemistry, Physical
Alejandra Romero-Moran, Jose L. Sanchez-Salas, Joel Molina-Reyes
Summary: The study established the influence of the crystalline phase and agglomeration degree of TiO2 nanoparticles on photocatalytic hydroxyl radical formation and bacterial inactivation in TiO2/SiO2 composite coatings. A relationship between hydroxyl radicals' formation and charge carrier transfer mechanism between defect levels in SiO2 and TiO2 embedded nanoparticles was established through a simple spectroscopic method. This correlation complements the lack of mechanisms behind the photocatalytic activity in TiO2/SiO2 composites.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Applied
Insaf Abdouli, Marion Eternot, Frederic Dappozze, Chantal Guillard, Nadine Essayem
Summary: The study compared the efficiency of photocatalytic conversion and hydrothermal conversion of glucose, finding that both processes were equally effective on TiO2, with the photocatalytic process having the potential for milder experimental conditions.
Article
Chemistry, Physical
Insaf Abdouli, Frederic Dappozze, Marion Eternot, Nadine Essayem, Chantal Guillard
Summary: By UV irradiation, the electronic properties of titanium dioxide can be altered, promoting the generation of H+ and inhibiting the performance of titanium dioxide catalyst in producing gluconic acid. This allows for the selective formation of levulinic acid with high yield.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Multidisciplinary
Adham Hussein Abdullah Farea Al-akhali, Zhengqiang Tang
Summary: This study successfully fabricated metal-based superhydrophilic and underwater superoleophobic porous materials by hydrothermal treatment of stainless steel meshes combined with magnetron sputtering. The modified meshes showed unique broccoli-like microstructures coated with thin TiO2-xNx/WO3 films and exhibited superhydrophilicity and underwater superoleophobicity. They maintained strong hydrophilicity for more than three weeks and could recover their initial superhydrophilicity after post-annealing. The fabricated materials had a significant water flow rate and satisfactory oil-water separation efficiency for various oil-water mixtures.
Article
Chemistry, Physical
Zhen Xie, Bingxian Chu, Mingkun Wu, Yumin Zhou, Guotong Yi, Bin Li, Xuetang Xu, Lihui Dong, Zhengjun Chen
Summary: In this study, Sn-doped titanium dioxide was synthesized by sol-hydrothermal method, and Cu2O and Cu were deposited on its surface by photochemical reduction method to prepare a composite photocatalyst Cu2O/Cu/T60S1. The introduction of Cu2O and Cu significantly improved the photocatalytic activity of T60S1 in the degradation of organic pesticides and TC-HCl under visible light.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Chemistry, Multidisciplinary
Ferenc Koppany, Krisztian Benedek Csomo, Edvard Marton Varmuzsa, Eszter Bognar, Liza Pelyhe, Peter Nagy, Imre Kientzl, Daniel Szabo, Miklos Weszl, Gabor Dobos, Sandor Lenk, Gabor Erdei, Gabor Kiss, Lilien Nagy, Attila Sreter, Andrea Alexandra Belik, Zsuzsanna Toth, Janos Vag, Arpad Joob-Fancsaly, Zsolt Nemeth
Summary: Our research group developed a novel nano-pitted (NP) TiO2 surface on grade 2 titanium that showed good mechanical, osteogenic, and antibacterial properties; however, it showed weak hydrophilicity. To enhance the hydrophilicity without destroying the nano-topography, we investigated the effects of orthophosphoric and nitric acids on wettability. The ccH(3)PO(4) treatment significantly increased the wettability of the NP TiO2 surfaces and could be used in industrial-scale manufacturing of titanium implants.
Article
Materials Science, Ceramics
Hugo Guimaraes Palhares, Eduardo Henrique Martins Nunes, Manuel Houmard
Summary: Most studies did not systematically evaluate textural and photocatalytic properties of TiO2-SiO2 composites. This work investigates the influence of heat treatment on the structural properties and photodegradation activity. Different prepared samples showed significant differences, but heat-treated samples had similar structures and properties, with some critical differences observed due to varying resistances to crystal growth.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Mairis Iesalnieks, Raivis Eglitis, Talis Juhna, Krisjanis Smits, Andris Sutka
Summary: This study successfully prepared a transparent titanium dioxide coating on plastic substrates and demonstrated its high performance in photocatalytic degradation of organic pollutants. The coating can be applied to polymer substrates and exhibits good stability.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Zeineb A. Thiehmed, Talal M. Altahtamouni
Summary: In this study, the effect of KBr salt on the growth of TiO2 nanorods was investigated. The addition of KBr with different concentrations controlled the growth of TiO2 nanorods, with KBr molecules suppressing lateral growth and allowing for axial growth. This impacted the morphology and internal surface area of the nanorods.
Article
Optics
F. S. Roslan, N. Saidin, M. A. M. Hatta, N. F. Hasbullah, P. M. Thirunavakkarasu
Summary: In this study, ZnO nanorod fibers doped with different concentrations of TiO2 powder were synthesized using a low-temperature hydrothermal method. The surface morphology, crystallite behavior, and optical properties of the fibers were investigated. The results showed that the TiO2 doping improved the crystallinity of the ZnO nanorods and resulted in higher refractive index.
UKRAINIAN JOURNAL OF PHYSICAL OPTICS
(2022)
Article
Materials Science, Multidisciplinary
M. G. Volkova, V. V. Petrov, A. P. Ivanishcheva, E. M. Bayan
Summary: Sn-ZnO nanorod array coatings with low concentration of tin dioxide were synthesized on glass or polycore substrates using hydrothermal method. The materials exhibited photocatalytic activity in the visible light range, with the best activity observed for the sample containing 1 mol.% of tin dioxide.
FUNCTIONAL MATERIALS LETTERS
(2022)