Article
Chemistry, Multidisciplinary
Manh-Cuong Le, Thu-Huong Le, Thanh-Huyen Bui Thi, Quang-Dat Nguyen, Thanh-Ha Do Thi, Minh-Nguyet Tran Thi
Summary: The addition of SiO2 in the TiO2/SiO2 nanocomposite significantly enhances the photocatalytic and antibacterial abilities of the silicate coating, with the best performance observed at a SiO2 content of 15%. This is attributed to the larger surface area provided by TiO2/SiO2 Nc (15%) in the W silicate coating, which increases centers for absorption, photocatalytic reactions, and contact between the sample and bacteria.
FRONTIERS IN CHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Nasrollah Najibi Ilkhechi, Mahdi Mozammel, Ahmad Yari Khosroushahi
Summary: This study synthesized ZnO, TiO2, and ZnO-TiO2 nanoparticles using the sol-gel method, with ZnO-TiO2 showing higher antifungal activity against A. flavus. The nanostructures inhibited 100% of spore production at a concentration of 300 μg/mL. Additionally, ZnO-TiO2 nanoparticles exhibited both spherical and pyramidal shapes with grown particles on the surface.
PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
(2021)
Article
Materials Science, Ceramics
M. Narasimha Murthy, V. Ganesh, G. Ravinder, S. Anusha, G. Chandrakala, C. J. Sreelatha
Summary: Aluminum and rubidium-doped zinc oxide thin films were deposited on glass substrates using sol-gel dip coating method. The effect of dopant content on structural, surface morphological, vibrational, and optical properties was studied using X-ray diffraction, SEM-AFM, and Raman spectrometer. It was observed that introducing Rb impurities into the ZnO lattice resulted in a deterioration in crystal quality and a blue shift in the bandgap. The increase in dopant concentration led to a change from hydrophilic to hydrophobic nature and showed significant antibacterial activity against E. coli.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Daniela Toplitsch, Jurgen Markus Lackner, Alexander Michael Schwan, Andreas Hinterer, Philipp Stoegmueller, Kerstin Horn, Natalie Fritzlar, Andreas Pfuch, Clemens Kittinger
Summary: The study assessed the antimicrobial activity of a plasma-cured 2.5% (w/v) Cu(NO3)(2)-containing sol-gel surface, showing effective antibacterial properties but impairment under soiling conditions and complete loss after ethanol disinfection. This highlights the need for comprehensive testing based on the anticipated usage of antimicrobial surface coatings.
Article
Materials Science, Multidisciplinary
S. Zarei, M. Hasheminiasari, S. M. Masoudpanah, J. Javadpour
Summary: ZnO-xSnO(2) composite films were prepared by sol-gel spin coating process and characterized. The films showed distinct microstructure with ZnO pyramids on SnO2 nanoparticles. The ZnO-25 mol% SnO2 film exhibited higher photocatalytic degradation of methylene blue dye compared to pristine ZnO and SnO2 films.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Inorganic & Nuclear
Maryam Anwar, Zohra Nazir Kayani, Amna Hassan, Talat Zeeshan, Saira Riaz, Shahzad Naseem
Summary: This study explored the impact of Sm on the photocatalytic and antibacterial properties of ZnO. The results showed that Sm-doped ZnO nanostructures exhibited enhanced crystallite size and demonstrated effective photocatalytic and antibacterial activities. Potential applications of Sm-doped ZnO include sensor development, photovoltaic panels, wastewater treatment, and water-splitting.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
C. Gomez-Polo, S. Larumbe, A. Gil, D. Munoz, L. Rodriguez Fernandez, L. Fernandez Barquin, A. Garcia-Prieto, M. L. Fdez-Gubieda, A. Muela
Summary: The study investigates the effects of Cr and N doping on the properties of TiO2 anatase nanoparticles, including adsorption capacity, photocatalytic performance, and antibacterial response. Doping with Cr and Cr/N enhances adsorption capacity and photocatalytic performance, with Cr-TiO2 nanoparticles exhibiting antibacterial activity under visible light. The differences in electrostatic charge and nanoparticle dispersion are suggested as the main reasons for the varied antibacterial response among the doped nanoparticles.
SURFACES AND INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Gokhan Demircan, Enes Furkan Gurses, Bulent Aktas, Serife Yalcin, Abuzer Acikgoz, Gokhan Ceyhan, Mehmet Vehbi Balak
Summary: Ti and Si doped ZnO thin films were fabricated using the sol-gel spin coating method. The structural and optical properties of the films were investigated using various characterization techniques. The results showed that the surface morphology consisted of ZnO fiber structures and the thickness of the films increased with Ti content. XRD and Raman spectra confirmed the retention of the hexagonal wurtzite crystal structure, while the crystallinity decreased. The films exhibited high optical transmittance and a redshift in the UV spectrum with increasing Si concentration.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Nurulhuda Bashirom, Wai Kian Tan, Go Kawamura, Atsunori Matsuda, Zainovia Lockman
Summary: In this work, anodic self-aligned oxide nanotube arrays were produced by anodic oxidation of Ti-40 wt.% Zr alloy in EG/NH4F/H2O electrolyte. The ZrTiO4-TiO2 nanotubes exhibited higher photocatalytic activity for reducing Cr(VI) ions compared to ZrO2-TiO2 nanotubes.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Physical
Albena Bachvarova-Nedelcheva, Reni Iordanova, Anton Naydenov, Angelina Stoyanova, Nelly Georgieva, Veronica Nemska, Tsvetelina Foteva
Summary: TiO2/TeO2 powders were synthesized via sol-gel method using telluric acid (H6TeO6) and titanium butoxide as precursors. The as-prepared gel was heated in the temperature range of 200-700 degrees C and characterized by XRD, IR, UV-Vis analysis, and SEM. Depending on the heating temperature, the final products were identified as mixtures containing TiO2 (anatase), alpha-TeO2 (paratellurite), and TiTe3O8. The gels exhibited thermal stability and transformation from organic-inorganic amorphous phase to inorganic phase at higher temperatures. The photodegradation efficiency of the TiO2/TeO2 samples towards Malachite green dye and its antimicrobial activity against E. coli K12 were evaluated. Furthermore, the material showed promising potential as an active phase in environmental catalysts through catalytic oxidation reactions.
Article
Pharmacology & Pharmacy
Oussama Ouerghi, H. Mohammed Geesi, O. Elmutasim Ibnouf, Mohammad Javed Ansari, Pravej Alam, Ammar Elsanousi, Abdellah Kaiba, Yassine Riadi
Summary: The study assessed the antibacterial effects of a conjugate of TiO2 nanoparticles and cardamom essential oil (CEO), which showed stronger activity against bacteria than CEO or TiO2 nanoparticles alone. Spectrophotometry measurements demonstrated the potent antibacterial activity of the conjugate. Confocal microscopy observations were used to explain the mechanism of action of the newly devised antibacterial agent.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Nurliyana Mohamad Arifin, Fariza Mohamad, Rosniza Hussin, Anis Zafirah Mohd Ismail, Shazleen Ahmad Ramli, Norazlina Ahmad, Nik Hisyamudin Muhd Nor, Mohd Zainizan Sahdan, Mohd Zamzuri Mohammad Zain, Masanobu Izaki
Summary: Metal oxide semiconductor materials have shown great potential in heterojunction thin film fabrication for photovoltaic mechanism improvements. The development of a p-(111)-Cu2O heterostructure with a uniform and highly oriented n-TiO2/(002)-ZnO bilayer thin film successfully addressed electron mobility issues. By utilizing sol-gel spin coating method to deposit the n-TiO2/ZnO bilayer as a window layer, improvements in crystalline size and transmission spectrum were achieved.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Chunlei Zhao, Wenjing Gao, Jun Wang, Jiang Ju, Jinlong Li
Summary: The NTNTs-TiN composite coating, prepared by combining physical vapor deposition technology and anodic oxidation, exhibits excellent tribocorrosion resistance, antimicrobial properties, and corrosion resistance. It forms a continuous water-lubrication film and reduces the coefficient of friction significantly, providing a new solution for the long-term safe use of implants in the human body.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Leandro L. Peres, Camila M. Cholant, Rafaela M. J. Lemos, Marco P. Rodrigues, Luana U. Kruger, Richard Pereira, Wladimir H. Flores, Andre Gundel, Douglas L. da Silva, Agnieszka Pawlicka, Cesar O. Avellaneda
Summary: The study used the peroxovanadate sol-gel method to produce ZnO-doped V2O5 thin films, demonstrating that ZnO doping improved the cyclic stability and reversibility of the films and resulted in a mixture of crystalline phases.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Leandro L. Peres, Camila M. Cholant, Rafaela M. J. Lemos, Marco P. Rodrigues, Luana U. Krueger, Richard Pereira, Wladimir H. Flores, Andre Guendel, Douglas L. da Silva, Agnieszka Pawlicka, Cesar O. Avellaneda
Summary: This study used the peroxovanadate sol-gel method to produce ZnO-doped V2O5 thin films and investigated the effect of doping on the electrochromic and structural characteristics of the films. The results showed that ZnO doping improved the cyclic stability and reversibility of the films, making them promising candidates for electrochromic device applications.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
