Article
Chemistry, Inorganic & Nuclear
Habib Chenaina, Charfeddine Messaadi, Jalila Jalali, Hatem Ezzaouia
Summary: This study focuses on sol-gel derived SnO2-TiO2 thin films deposited on silicon wafer type Si (100) substrate using spin coating technique, followed by heat treatments at four different temperatures. XRD characterization reveals the formation of nano-crystalline phase at 400 degrees C and further crystallization with increasing annealing temperature. Optical and dielectric properties analysis demonstrates universal many body response over a broad frequency range, presenting variations in structure and performance of the films.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Materials Science, Ceramics
M. Chakraborty, E. S. Kadir, R. N. Gayen
Summary: By varying the graphene oxide (GO) content, the modification of UV photo-response characteristics in transparent titanium dioxide-graphene oxide (TiO2-GO) nanocomposite thin films was studied. The presence of GO improves the optical band gap of TiO2 without affecting its transparency. The fabricated metal-semiconductor (MS) Schottky junctions with TiO2-GO nanocomposite thin films show rectifying behavior and improved UV response characteristics.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Shadpour Mallakpour, Mina Naghdi
Summary: A bone scaffold was fabricated using a hybrid of TiO2@LDH to leverage the advantages of both nanostructures, with LDH providing a suitable bed for TiO2 nanoparticles and Alg embedding them for stability. The scaffold showed excellent biomineralization and antibacterial properties, making it a promising candidate for bone tissue engineering.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Yuanting Wu, Mengyao Guan, Xiaojing Chang, Jinrong Wang, Shuming Xu
Summary: We constructed a homogeneous double-layer TiO2-ZrO2-SiO2 photocatalyst with multi-heterojunction (D-TZS) using a simple sol-gel method, which effectively improves the photocatalytic property. By investigating various factors, we found that D-TZS can degrade Rh B by about 99.6% within 40 minutes and almost completely degrade it within 60 minutes. This is attributed to the homogeneity, multiple heterojunctions, and oxygen vacancies of D-TZS.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Inorganic & Nuclear
J. Gajendiran, S. Gnanam, C. Parthasaradhi Reddy, G. Ramesh Kumar, V. C. Bharath Sabarish, S. Gokul Raj, K. Ramachandran, V. P. Senthil, V. Gopi
Summary: In this paper, BiFeO3, YMnO3, and BiFeO3-YMnO3 compounds were synthesized and their structural, morphological, and light absorption characteristics were compared for the first time.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Optics
J. A. Borrego-Perez, Federico Gonzalez, C. A. Meza-Avendano, I. Montoya De Los Santos, Rigoberto Lopez-Juarez, I. Hernandez, E. M. Alonso-Guzman, W. Martinez-Molina, H. L. Chavez-Garcia
Summary: In this study, Tm3+-doped TiO2 nanocrystalline powders were successfully synthesized using the sol-gel method, and their structural, optical, and photoluminescence properties were comprehensively characterized. The incorporation of Tm3+ was found to promote an increase in lattice parameters and inhibit crystal growth, as observed through various analytical techniques.
Article
Materials Science, Ceramics
Weibai Bian, Jiqiang Jia, Ruixuan Zhang
Summary: Pt/SrTiO3(STO)/LaNiO3(LNO) and Pt/STO/Pt structures were fabricated on Si substrates using sol-gel method. Dielectric tunability characteristics of these two structures are investigated over temperature range of 300-80 K. STO prepared on LNO exhibits better crystallinity and dielectric tunability than that prepared on Pt. Furthermore, LNO/STO/LNO structure exhibits similar tunability, lower tan delta, higher figure-of-merit (FOM) values, and better tunability symmetry compared with Pt/STO/LNO structure, demonstrating the better performance of LNO electrode than conventional inert metal electrodes.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Anchal Sharma, Puneet Negi, Ruhit Jyoti Konwar, Hemaunt Kumar, Yogita Verma, Shailja, Prakash Chandra Sati, Bhargav Rajyaguru, Himanshu Dadhich, N. A. Shah, P. S. Solanki
Summary: Pure and doped derivatives of TiO2 with nitrogen and cobalt as dopants were synthesized using auto-combustion sol-gel technique. The doping effects on the structural, optical, and electrical properties were investigated. The results showed that doping can tune the band gap of TiO2, making it suitable for photocatalytic and photovoltaic applications.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Manal Alkhabbas, Fadwa Odeh, Khitam Alzughoul, Razan Afaneh, Waed Alahmad
Summary: TiO2-Kaolinite nanocomposite photocatalysts were synthesized using the sol-gel method, with titanium isopropoxide/HCl as reactants and Jordanian kaolinite clay as a support material. The increase in TiO2 content led to increased intensity of anatase peaks in XRD measurements and increased peaks of Ti-O-Si in FTIR. The nanocomposites showed high photocatalytic activity in degrading Congo-red dye under sunlight.
Article
Engineering, Electrical & Electronic
O. F. Goktas, N. E. Koksal, O. Kaplan, A. Yildiz
Summary: The sol-gel method was used to fabricate Al-doped ZnO (AZO) thin films on p-Si substrates with smooth surfaces and highly oriented crystal structures. The analysis revealed that the AZO/Si heterojunctions exhibited nonideal diode behavior, with the 80 nm thick AZO layer demonstrating good rectifying properties.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Inorganic & Nuclear
Aamir Ahmed, Anoop Singh, Asha Sharma, Prerna, Sonali Verma, Sarika Mahajan, Sandeep Arya
Summary: Recent research interest has been focused on synthesizing nanocomposite-based photoluminescent materials, particularly using lanthanides such as Europium. This study prepared Europium doped Y2O3: TiO2 nanocomposite and characterized its structural, morphological, and optical properties using various techniques. The material exhibited good optical properties and showed potential for applications as a thermographic phosphor and in LED fabrication.
SOLID STATE SCIENCES
(2021)
Article
Polymer Science
Manon Besancon, Yanhui Wang, Johan G. Alauzun, Hubert Mutin, Eliane Espuche, Veronique Bounor-Legare
Summary: This study investigated the influence of polymer nature on the morphology of synthesized TiO2 through NHSG routes, demonstrating the possibility to control the morphology of inorganic objects by the appropriate choice of solvent and reactants.
Article
Materials Science, Coatings & Films
Arnaud Valour, Maria Alejandra Usuga Higuita, Gaylord Guillonneau, Nicolas Crespo-Monteiro, Damien Jamon, Marion Hochedel, Jean-Yves Michalon, Stephanie Reynaud, Francis Vocanson, Carmen Jimenez, Michel Langlet, Christophe Donnet, Yves Jourlin
Summary: The study presents the optical, electrical, and mechanical properties of TiN films prepared by a sol-gel method and rapid thermal nitridation, which are promising for manufacturing optical metasurfaces devices or new plasmonic materials with shorter production time, large scale, and lower cost.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Polymer Science
Abubakar Katsina Usman, Diana-Luciana Cursaru, Gheorghe Branoiu, Raluca Somoghi, Ana-Maria Manta, Danuta Matei, Sonia Mihai
Summary: The study presents the preparation of anatase phase {001}-TiO2/Au hybrid nanocomposites using a sol-gel synthesis technique and investigates their photocatalytic activity. The characterization results demonstrate the structure and performance of the materials, showing promising photodegradation efficiencies under direct sunlight illumination.
Article
Green & Sustainable Science & Technology
Pablo Jimenez-Calvo, Valerie Caps, Valerie Keller
Summary: Solar energy and photocatalysis are key players in the energy transition, with hydrogen emerging as an ideal solar fuel due to its simplicity in the water-splitting reaction. However, the challenge lies in finding a single catalyst with sufficient conversion efficiency. The development of multi-phase composites, plasmonic Schottky junctions, and Z-scheme heterojunctions are promising approaches to enhancing hydrogen production.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
