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Articles de revues sur le sujet « Titanium-doping »

Auteur : Grafiati

Publié le 9 mars 2023

Mis à jour le 19 juillet 2025

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1

Li, Puliang, Yang Wang, Weifang Liu, Tao Chen, and Kaiyu Liu. "Enhancing the Structural and Electrochemical Properties of Lithium Iron Phosphate via Titanium Doping During Precursor Synthesis." Energies 18, no. 4 (2025): 930. https://doi.org/10.3390/en18040930.

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This study investigates the effects of different titanium doping concentrations on the properties of iron phosphate precursors and the final lithium iron phosphate (LiFePO4) materials, aiming to optimize the structural and electrochemical performance of LiFePO4 by introducing titanium during the precursor synthesis stage. Titanium was introduced using titanate as a titanium source to prepare iron phosphate precursors with varying titanium concentrations. The materials were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), and other techniques. The results showed

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Mogal, Sajid I., Manish Mishra, Vimal G. Gandhi, and Rajesh J. Tayade. "Metal Doped Titanium Dioxide: Synthesis and Effect of Metal Ions on Physico-Chemical and Photocatalytic Properties." Materials Science Forum 734 (December 2012): 364–78. http://dx.doi.org/10.4028/www.scientific.net/msf.734.364.

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Titanium dioxide (Titania; TiO2) is one of the most widely used metal oxide semiconductor in the field of photocatalysis for removal of pollutants. It has been noted that titanium dioxide is a research friendly material as its physico-chemical and catalytic properties can be easily altered as per specific application. Since many years, researchers have tried to modify the properties of titanium dioxide by means of doping with metals and non-metals to improve its performance for photocatalytic degradation (PCD) applications. The doping of various metal ions like Ag, Ni, Co, Au, Cu, V, Ru, Fe, L

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Zhang, Zuosheng, Yong Zhang, and Die Shen. "Influence and mechanism of titanium doping on the electrochromic performance of nickel oxide nanofilm." Journal of Physics: Conference Series 2730, no. 1 (2024): 012018. http://dx.doi.org/10.1088/1742-6596/2730/1/012018.

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Abstract This research investigates the preparation and electrochromic performance of titanium-doped nickel oxide nanofilms. Through chemical bath deposition, nickel oxide doped with various ratios of titanium (NiO) films was successfully synthesized. The study extensively analyzes the structural features and properties of these films using such characterization techniques as X-ray diffraction, transmission electron microscopy, and X-ray photoelectron spectroscopy, among others. The experimental findings highlight that moderate titanium doping (0.3%) notably enhances the porous structure and c

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Yan, Zhiyuan, Han Ren, Yuan Geng, et al. "Study of Fe-Doped Ordered Mesoporous Titanium Dioxide Synthesis." Journal of Physics: Conference Series 2539, no. 1 (2023): 012052. http://dx.doi.org/10.1088/1742-6596/2539/1/012052.

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Abstract Titanium dioxide is often designed as an excellent catalyst carrier and photocatalyst due to its tunable structure. In this paper, iron-doped ordered mesoporous titanium dioxide was prepared. These powders were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and nitrogen physisorption (BET). It was found that mesoporous titanium dioxide powders containing 1% Fe doping were roasted at 350 °C to favor the formation of ordered mesoporous titanium dioxide. This is due to the fact that Fe doping can enhance the pore structure and improve the orderliness of

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Hashim, Faiz, Khamim Ismail, Aizuddin Supee, et al. "Aluminum Doped Titanium Dioxide Thin Film for Perovskite Electron Transport Layer." Malaysian Journal of Fundamental and Applied Sciences 18, no. 5 (2022): 550–57. http://dx.doi.org/10.11113/mjfas.v18n5.2555.

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Aluminum (Al) doped titanium dioxide thin film with different Al doping concentration (Al = 0 mol%, 1 mol%, 3 mol%, 5 mol% and 7 mol%) were deposited using solution spin coating technique and the effect of Al concentration on the structural, morphological and optical properties were examine. All samples were annealed at 450°C for 1 hour. XRD reveal that the films exhibits anatase crystal phase at (101) peak orientation. Based on the FESEM and AFM image it is found that, surface morphology of the film was significantly affected with different doping concentration. Al doped titanium dioxide with

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Fedorov, Sergei N., Vladimir Yuryevich Bazhin, and Vladimir G. Povarov. "Doping Titanium Dioxide by Fluoride Ion." Materials Science Forum 946 (February 2019): 181–85. http://dx.doi.org/10.4028/www.scientific.net/msf.946.181.

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Titanium dioxide has a special feature: anatase, to rutile transformation which was considered in our investigations. It is especially important to keep anatase form of titanium dioxide for photocatalytic materials, different ceramics with tribo-chemical properties, self-cleaning coatings and self-sterilizing coatings. For that only one of the titanium dioxide forms is more suitable – anatase, which is more active but not stable, because it transforms to rutile during the time or with the temperature increase loses its activity. Different methods of stabilising anatase have been considered in

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Wu, Weihua, Long Zheng, Jianzhong Xue, Xiaoqin Zhu, and Jiwei Zhai. "Crystallization properties and structural evolution of amorphous Ti-doped Sn₂₀Sb₈₀ thin layers induced by heating and irradiating." Journal of Applied Physics 131, no. 19 (2022): 195105. http://dx.doi.org/10.1063/5.0088791.

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Sb-rich Sn20Sb80 thin layers with different titanium components were comprehensively investigated in terms of the crystallization properties and structural characterization. The phase transition behaviors induced by heating and irradiating were obtained from in situ resistance and reflectivity measurement. After doping the titanium element, the phase transformation temperature and resistance enhance remarkably, meaning the better thermal stability and lower energy consumption of the Sn20Sb80 material. The structural analyses were characterized by x-ray diffraction, transmission electron micros

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Alshoaibi, Adil. "Boosting the Optical Activity of Titanium Oxide Through Conversion from Nanoplates to Nanotubes and Nanoparticle-Supported Nanolayers." Crystals 15, no. 2 (2025): 187. https://doi.org/10.3390/cryst15020187.

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The nano-architecture of titanium oxide is a key element of a wide range of applications, mainly optical and catalytic activities. Therefore, the current study focuses on engineering and designing three interesting nanostructures of titanium oxides: nanoplates, nanotubes, and nanoparticle-supported nanolayers. The nanoplates of titanium oxides were prepared and confirmed by TEM images, X-ray diffraction, and EDX analysis. These nanoplates have an anatase phase, with the distance across the corners in the range of 15 nm. These nanoplates were modified and developed through a rolling process wit

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Ali, Aya, Likhitha Polepalli, Sheetal Chowdhury, et al. "Silver-Doped Titanium Oxide Layers for Improved Photocatalytic Activity and Antibacterial Properties of Titanium Implants." Journal of Functional Biomaterials 15, no. 6 (2024): 163. http://dx.doi.org/10.3390/jfb15060163.

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Titanium has a long history of clinical use, but the naturally forming oxide is not ideal for bacterial resistance. Anodization processes can modify the crystallinity, surface topography, and surface chemistry of titanium oxides. Anatase, rutile, and mixed phase oxides are known to exhibit photocatalytic activity (PCA)-driven bacterial resistance under UVA irradiation. Silver additions are reported to enhance PCA and reduce bacterial attachment. This study investigated the effects of silver-doping additions to three established anodization processes. Silver doping showed no significant influen

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Pratiwi, Vania Mitha, Agung Ari Wibowo, Widyastuti, Hariyati Purwaningsih, and Fakhri Akbar Maulana. "Characterization of NASICON Structure Prepared with Titanium Dioxide Doping for NOx Gas Sensor Application." Materials Science Forum 964 (July 2019): 168–73. http://dx.doi.org/10.4028/www.scientific.net/msf.964.168.

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An alternative sensor that can be used to monitor Nitrogen Oxide (NOx) levels in the air is an electrochemical sensor type such as Sodium Super Ionic Conductor (NASICON). In this study titanium doping on zirconium was carried out to improve the electrical conductivity of NASICON. This material was synthesized using the solid state method by mixing sodium carbonate, silicon dioxide, zirconium oxide, ammonium dihydrogen phosphate, titanium dioxide and some anhydrous ethanol into the Ballmill for 12 hours, dried at 80 °C for 12 hours then calcined at 1125 °C for 12 hours with heating rate of 2 °C

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Kgoedi, Moloko Emmanuel, Raesibe Sylvia Ledwaba, Malang Cliffton Masedi, Noko Ngoepe, and Phuti Ngoepe. "Investigating the effect of titanium substitution on the stability and performance of lithium-rich Li_1.2Mn_0.8O₂ cathode material." MATEC Web of Conferences 406 (2024): 02002. https://doi.org/10.1051/matecconf/202440602002.

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Doping with titanium (Ti) is a potent technique for enhancing the performance of lithium-rich cathode materials due to strong Ti-O bonds and stable valence Ti-based modifications which have been used to improve the electrochemical performance of layered cathodes. Despite the large benefits of Li-rich oxides, several issues such as voltage decay and poor cycling stability still hinder their practical application. In recent years, many studies have focused on improving the electrochemical properties via various strategies such as regulating oxygen redox reactions and enhancing structure. In this

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Jabbar, Basma Abbas, Khawla J. Tahir, Basheer M. Hussein, et al. "Investigations on the Nonlinear Optical Properties of Eu³⁺: TiO₂ Nanoparticles via Z-Scan Technique." Materials Science Forum 1039 (July 20, 2021): 245–52. http://dx.doi.org/10.4028/www.scientific.net/msf.1039.245.

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Europium doped Titanium dioxide (TiO2) nanoparticles were prepared by Sol-Gel technique under varying condition to investigate the effects of Eu3 + doping on the optical properties of Titanium dioxide nanoparticles. The transmittance spectrum is clearly visible at wavelengths 394nm and 416nm, and is a result of electronic transitions of energy level of the Eu3 + ions. . The obtained composites for different doping concentration were analyzed by using Energy Dispersive X-ray Spectroscopy (EDS). The linear and nonlinear optical properties of the composite were studied using the Z-scan technique,

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Fatma, Sakina Cahaya, Hary Sanjaya, and Miftah Patriela. "Pengaruh Konsentrasi Doping TiO₂ dan Volume Diethanolamine (DEA) terhadap Nilai Bandgap CuO dengan Metode Sol-Gel." MASALIQ 5, no. 4 (2025): 1844–52. https://doi.org/10.58578/masaliq.v5i4.6634.

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Copper(II) oxide (CuO) is a promising semiconductor material for various applications such as photocatalysis, sensing, and renewable energy devices. However, its performance is often limited by a suboptimal bandgap value for efficient energy conversion. This study aims to evaluate the effects of titanium doping concentration and the addition volume of diethanolamine (DEA) on the optical properties of CuO synthesized via the sol-gel method. The sol-gel technique was chosen for its ability to produce uniform doping distribution and stable nanoparticle structures. Bandgap characterization was con

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Xu, Pei Yao, Xiao Xue Han, and Sa Sa Ban. "Modification of Nano-Titanium Dioxide Film and Processing Experimental Study of Tannery Waste Water." Advanced Materials Research 383-390 (November 2011): 6391–95. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.6391.

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This paper was prepared by liquid phase deposition of quartz sand load nanometer titanium dioxide film, in which quartz sand as the carrier, and to Fe3+,Zn2+ as doping on the membrane was modified. The initial value of pH is 6.7,in this condition, select the heating temperature, the doping ratio of Fe3+andZn2+ to design the orthogonal experiment. CODCr removal and pH value as the evaluate index, to deal with the real tannery wastewater, discussed when Fe3+,Zn2+ co-doping, the best doping ratio of them, the best technical conditions such as heat treatment temperature; and their affect on CODCr

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Tuluk, Anton, Siddharth Joshi, Tadhg Mahon, and Sybrand van der Zwaag. "Tuning piezoproperties of BiFeO₃ ceramic by cobalt and titanium dual doping." Journal of Applied Physics 131, no. 21 (2022): 214104. http://dx.doi.org/10.1063/5.0091768.

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Bismuth ferrite is a potentially interesting lead-free piezoelectric material for use in high-temperature applications due to its high Curie temperature. However, the high coercive field and high leakage currents of pure BiFeO3 (BFO) prevent reaching its theoretical performance level. The classic approach to tailoring piezoceramic properties to their desired use conditions is the use of doping. In this work, we produce bulk BFO piezoceramic by the conventional sintering method with single element doping with cobalt (0.125–3 at. %) or titanium (1–5 at. %) and dual doping (Co and Ti added simult

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Di Valentin, Cristiana, Gianfranco Pacchioni, and Annabella Selloni. "Theory of Carbon Doping of Titanium Dioxide." Chemistry of Materials 17, no. 26 (2005): 6656–65. http://dx.doi.org/10.1021/cm051921h.

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Mungondori, Henry H., and Lilian Tichagwa. "Photo-Catalytic Activity of Carbon/Nitrogen Doped TiO₂-SiO₂ under UV and Visible Light Irradiation." Materials Science Forum 734 (December 2012): 226–36. http://dx.doi.org/10.4028/www.scientific.net/msf.734.226.

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The sol gel synthesis method was used to prepare carbon and nitrogen doped titanium dioxide (TiO2) photo-catalyst using titanium tetrachloride (TiCl4) as the precursor. Doping was carried out to modify the absorption band edge of titanium dioxide. To avert the problem associated with use of powder TiO2, the photo-catalyst was immobilized on glass support using tetraethyl orthosilicate (TEOS), which served as a binder and precursor for silicon dioxide (SiO2). The prepared photo-catalytic materials were characterized by FT-IR, XRD, TEM, BET and DRS. The photo-catalytic efficiency of titanium dio

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18

Zheng, Dongchun, Xiao-Li Zhao, Xueqi Yan, et al. "Transition-metal doped titanium-oxo clusters with diverse structures and tunable photochemical properties." New Journal of Chemistry 46, no. 7 (2022): 3083–86. http://dx.doi.org/10.1039/d1nj05532a.

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Zykov, Fedor, Igor Selyanin, Roman Shishkin, Vadim Kartashov, Konstantin Borodianskiy, and Yuliy Yuferov. "Study of the Photocatalytic Properties of Ni-Doped Nanotubular Titanium Oxide." Coatings 13, no. 1 (2023): 144. http://dx.doi.org/10.3390/coatings13010144.

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Nanotubular titanium oxide is widely known as a prospective semiconductor photocatalyst for the process of water splitting. Its photoelectrochemical (PEC) efficiency can be improved by doping with 3d metal. In this work, the synthesis of nanotubular titanium oxide (NTO) was carried out by anodizing titanium substrates using two doping techniques. First, Ni-doped TiO2 was obtained by immersion in Ni salt solution; second, an ethylene glycol-based fluoride electrolyte containing Ni2+ ions solution was used. The obtained samples were analyzed using SEM, XRD, and photoelectrochemical methods. The

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Khraisheh, M. A., L. Wu, and B. Antizar-Ladislao. "Investigation of the use of TiO2 doped with metal ions in water disinfection." Water Supply 10, no. 5 (2010): 841–47. http://dx.doi.org/10.2166/ws.2010.348.

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This research was conducted to improve titanium dioxide by transition metal doping using cooper. Sol gel method was used to prepare metal doped TiO2. Titanium isopropoxide and commercial TiO2 P25 were employed as catalyst precursor. The role played by the varied preparation parameters such as doping level and pH of solution discussed with respect to the final photoreactivity. Photoreactivity was carried out in a solar box with two UVA lamps. The photodisinfection of E. coli in aquatic solution were selected as probe to measure the photoreactivity. It is found that Cu doped TiO2 exhibited enhan

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Jain, Akash, and Ashwin Ramasubramaniam. "Tuning core–shell interactions in tungsten carbide–Pt nanoparticles for the hydrogen evolution reaction." Physical Chemistry Chemical Physics 20, no. 36 (2018): 23262–71. http://dx.doi.org/10.1039/c8cp04113j.

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HUANG, WEN-FEI, PIN-JIUN WU, WEI-CHIH HSU, CHIH-WEI WU, K. S. LIANG, and M. C. LIN. "CARBON-DOPEDTiO2NANOTUBES: EXPERIMENTAL AND COMPUTATIONAL STUDIES." Journal of Theoretical and Computational Chemistry 12, no. 03 (2013): 1350007. http://dx.doi.org/10.1142/s0219633613500077.

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C-doped TiO2nanotubes (NTs) with anatase structure, prepared by anodizing the polished Ti foils, were characterized using X-ray diffraction (XRD), field-emission scanning electron microscope (FE-SEM), and synchrotron-based X-ray photoemission spectroscopy (XPS). XPS results show electron losses in C atoms, no electron change in Ti atoms, and two doping energy levels appeared in band gaps. Structural geometries, DOSs, PDOSs, and Bader charge analyses of C -doped TiO2anatase are predicted by periodic DFT calculations. Eight doping positions were taken into consideration: two substitutional cases

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Razali, Nur ‘Aliaa, and Siti Amira Othman. "Study of Photocatalytic Performance of Doping Titanium Dioxide (TiO2)." Journal of Science and Mathematics Letters 9, Special (2021): 72–79. http://dx.doi.org/10.37134/jsml.vol9.sp.9.2021.

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Titanium dioxide is one of the most powerful semiconductor that chemically stable and widely used in the photodegradation of wastewater process. However, titanium dioxide have wide band gap (3.2eV) which only can be activated by using UV light. In order to overcome the weakness of this photocatalyst, the doping technique by using sol-gel method applied to the titanium dioxide. Nitrogen and magnesium were used as dopand. Thus, in this study, nitrogen and magnesium doped TiO2 will be applied on Reactive Black 5 dye to study the photocatalytic performance and the result will be analysed.

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Gu, Mingwen, Haifeng Zhang, Xiangmu Hu, Yuanhao Jia, Sizhe Qi, and Xiang Xie. "Research on the Application of Titanium Dioxide Nanotubes in Insulating Resins." Scientific Journal of Technology 5, no. 11 (2023): 1–5. http://dx.doi.org/10.54691/sjt.v5i11.5737.

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The commonly used insulation paint for electric vehicle motors currently has poor flame retardancy, toughness, thermal stability, and wear resistance due to the use of polymer materials. In order to further improve the performance of insulation paint, it is necessary to doping inorganic materials. However, in order to achieve high performance, high doping is generally required, and high doping faces problems such as poor compatibility between doped particles and insulation paint. In order to further improve the flame retardancy, toughness, thermal stability, and wear resistance of insulation p

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Nakahira, Atsushi, Yusuke Kawabe, Hironobu Nishimoto, and Hiroshi Onodera. "Synthesis of S and N Co-Doped Mesoporous Titanium Oxideby Anodization Processs." Key Engineering Materials 616 (June 2014): 72–76. http://dx.doi.org/10.4028/www.scientific.net/kem.616.72.

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Uni-directionally arranged mesoporous titanium oxide powders were prepared for titanium sheet through electrochemical anodization, one-step anodization with mixture of HNO3 and H2SO4 or two-steps anodization with HNO3 after H2SO4. The characterization of novel titanium oxide was carried out by XRD, XPS, SEM and TEM. The doping of S and N was confirmed with XPS evaluations during the anodization process in mixture of HNO3 and H2SO4. Furthermore, the S and N co-doped titanium oxide possessed the unique mesoporous structure.

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Burungale, V. V., Hyojung Bae, A. S. Kamble, J. H. Kim, P. S. Patil, and J. S. Ha. "Studies on interstitial carbon doping from a Ti precursor in a hierarchical TiO2 nanostructured photoanode by a single step hydrothermal route." RSC Advances 10, no. 48 (2020): 28492–500. http://dx.doi.org/10.1039/d0ra04744a.

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Luiz, Fernando Zagonel, Ramos Raul, Scoca Diego, Borges Merlo Rafael, Chagas Marques Francisco, and Alvarez Fernando. "Study of nitrogen ion doping of titanium dioxide films." Applied Surface Science 443 (April 2, 2018): 619–27. https://doi.org/10.1016/j.apsusc.2018.02.259.

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This study reports on the properties of nitrogen doped titanium dioxide (TiO<sub>2</sub>) thin films considering the application as transparent conducting oxide (TCO). Sets of thin films were prepared by sputtering a titanium target under oxygen atmosphere on a quartz substrate at 400 or 500°C. Films were then doped at the same temperature by 150 eV nitrogen ions. The films were prepared in Anatase phase which was maintained after doping. Up to 30at% nitrogen concentration was obtained at the surface, as determined by <em>in situ</em> x-ray photoelectron spectroscopy (XPS). Such high nitro

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Han, Li, Yan Gao, Xing Gao, Weijuan Gong, and Hui Wang. "Degradation of Organic Pollutants by Titanium Dioxide Matrix Composites." E3S Web of Conferences 245 (2021): 02039. http://dx.doi.org/10.1051/e3sconf/202124502039.

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As a semiconductor material, titanium dioxide has the advantages of stable chemical properties, no pollution and low price, which is widely used in the field of organic pollutant degradation. The modification methods of semiconductor composite and nonmetallic doping for titanium dioxide are described. The degradation efficiency of modified titanium dioxide composite for organic pollutants is proposed. The advantages and disadvantages of the composite in preparation and application are pointed out. Finally, the development direction of modified titanium dioxide composite in the future is descri

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Li, Xinzhe, Yiyun Fang, Yiping Hu, et al. "Mesoporous titanium dioxide coating on gold modified silica nanotubes: a tube-in-tube titanium nanostructure for visible-light photocatalysts." RSC Advances 5, no. 86 (2015): 69962–69. http://dx.doi.org/10.1039/c5ra11934k.

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Jia, X. L., Y. Wang, R. S. Xin, Quan Li Jia, and Hai Jun Zhang. "Preparation of Rare-Earth Element Doped Titanium Oxide Thin Films and Photocatalysis Properties." Key Engineering Materials 336-338 (April 2007): 1946–48. http://dx.doi.org/10.4028/www.scientific.net/kem.336-338.1946.

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Rare-earth doped porous nanocrystalline TiO2 films were prepared via sol-gel method. The effect of preparation conditions on the properties of the resulting thin films, such as structure, surface topography and photocatalysis properties was analyzed. It indicated that appropriate doping of rare-earth element improves the photocatalysis ability of the thin titanium oxide films. The thin titanium oxide films have good photocatalysis properties in visible light region because of the red shift of energy level. It also revealed that uni-doped of cobalt is better than that of cobalt and lanthanum, w

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Petrikova, Elizaveta A., Yurii F. Ivanov, and Anton D. Teresov. "The Method of Receiving of Surface Alloys Si-Ti System." Applied Mechanics and Materials 682 (October 2014): 87–90. http://dx.doi.org/10.4028/www.scientific.net/amm.682.87.

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The technique has been developed and the possibility of doping titanium by silicon to form a multilayer composite Ti (base) / Ti5Si3 (surface layer) material, which is special interesting as a high-temperature light material due to the formation of high-temperature (Tm = 2400 K) of titanium silicideTi5Si3, synthesized in a single vacuum cycle during high-intensity electron beam treatment of submillisecond duration on the film (silicon) / substrate (titanium), formed by spraying silicon by electron beam.

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Chisaka, Mitsuharu. "Creation of oxygen reduction reaction active sites on titanium oxynitride without increasing the nitrogen doping level." Physical Chemistry Chemical Physics 20, no. 23 (2018): 15613–17. http://dx.doi.org/10.1039/c8cp01420e.

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Salih, Amer M., Zuheer N. Majeed, and Sabri J. Mohammed. "Graphene and its Effect on the Structural and Optical Properties of TiO2 Nano Thin Films Prepared by PLD Technique." NeuroQuantology 20, no. 5 (2022): 179–84. http://dx.doi.org/10.14704/nq.2022.20.5.nq22161.

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In this study, thin films were prepared from pure titanium dioxide doped with graphene (1, 3, 5, 7%) wt using pulsed laser deposition (PLD) technique. The X-ray diffraction results showed that the prepared films were polycrystalline with a quaternary structure. It is noted that there are diffraction peaks corresponding to the levels (101, 004, 200, 211), and in the preferential direction (101), we notice that the intensity of the peak (101) decreases with increasing doping with the appearance of a new peak when doping at rates (5, 7%)and angle (26.5 ) This peak represents graphene oxide, and t

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Supriyanto, Edy, Moh Nawafil, and Agus Subekti. "Optimizing dye-sensitized solar cell efficiency through TiO2/CuS doping: effects of internal parameter variations." Eastern-European Journal of Enterprise Technologies 4, no. 5 (130) (2024): 6–13. http://dx.doi.org/10.15587/1729-4061.2024.310454.

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Dye-sensitized solar cells (DSSC) have attracted significant research interest due to their semi-transparency, ease of fabrication, cost-effectiveness, and environmental friendliness. This research focuses on enhancing dye-sensitized solar cells efficiency by doping titanium dioxide with copper sulfide and varying internal parameters such as concentration, thickness, and temperature. The primary issue addressed is the low electron mobility of titanium dioxide, which limits its performance as a photoanode. Using simulation methods, this study analyzed dye-sensitized solar cells performance unde

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Khlyustova, Anna, Anastasia Evdokimova, Nikolay Sirotkin, and Valeriya Shibaeva. "Green Method of Doping Photochromic TiO2." Applied Sciences 14, no. 19 (2024): 8877. http://dx.doi.org/10.3390/app14198877.

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The doping process is a unique method of changing the microstructure of a material, influencing its mechanical, thermal, and optical properties. Typically, the doping process is carried out via chemical reagents. In this work, we present a “green” method of doping photochromic TiO2 via low-temperature plasma. The doping agent was the electrode material that was sputtered during plasma burning. The process of electrode sputtering is confirmed by the emission spectroscopy data of the plasma zone and the mass loss of the electrodes. The doping process was confirmed by X-ray, Raman spectroscopy, a

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Huang, Qingqing, Xiaodong Lv, Wei Lv, Run Huang, and Xuewei Lv. "Oxidation kinetics and crystal structure of high-titanium slag containing sodium salt." Metallurgical Research & Technology 122, no. 2 (2025): 206. https://doi.org/10.1051/metal/2025006.

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A novel technology was suggested to obtain the high-quality upgraded titanium raw materials for chlorination process through semi-molten states reduction with sodium salt and magnetic separation. The oxidation behavior and crystal structure of the obtained high-titanium slag containing sodium salt were studied. The Me3O5 solid solution is a uniform solid solution formed by doping Fe2+, Mg2+, and Mn2+ in the Ti ion occupancy sites based on the Ti3O5 component. Doping of these impurities cause a decrease in lattice volume, which induces the lattice to distort. As the oxidation progresses, the Me

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Thoř, T., K. Rubešová, V. Jakeš, R. Kučerková, J. Pejchal, and M. Nikl. "Titanium-doped LiAlO₂ ceramics for neutron scintillation." Journal of Physics: Conference Series 2413, no. 1 (2022): 012015. http://dx.doi.org/10.1088/1742-6596/2413/1/012015.

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A series of bulk ceramic samples of titanium-doped LiAlO2 with doping concentrations of 0.05, 0.1, 0.5 and 1.0 at% were prepared using a sol-gel method. The LiAlO2:Ti samples showed emission in two spectral regions around 380 and 765 nm associated with the CT transition of Ti4+ and the d-d transition of Fe3+ impurities, respectively. The sample composition with 0.5 at% doping concentration exhibited the highest emission intensity. Furthermore, dense ceramic samples with 0.5 at% Ti-doping were prepared using spark plasma sintering. These samples exhibited intense CT luminescence of Ti4+ at 380

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Brzozowska, Weronika, Myroslav Sprynskyy, Izabela Wojtczak, et al. "Metabolically Doping of 3D Diatomaceous Biosilica with Titanium." Materials 15, no. 15 (2022): 5210. http://dx.doi.org/10.3390/ma15155210.

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Diatoms represent, in terms of species number, one of the largest groups of microalgae that have the ability to synthesize phenomenal mineral composites characterized by complex hierarchical structures. Their shells, called frustules, create intricately ornamented structures, reminiscent of the most sophisticated, natural mosaics. Ordinated pore systems perforate siliceous walls of the frustules with diameters ranging from nano to micro-scale, forming openwork three-dimensional silica structures. The use of these features is one of the main challenges in developing new technological solutions.

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Dresvyannikov, A. F., A. N. Akhmetova, and Thu Hoa Do Thi. "SURFACE DOPING OF TITANIUM ALLOY WITH NANOSIZED PALLADIUM." Herald Of Technological University 25, no. 11 (2022): 92–95. http://dx.doi.org/10.55421/1998-7072_2022_25_11_92.

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Krispin, P., and H. Kostial. "Deep-level planar doping of titanium in GaAs." physica status solidi (b) 194, no. 1 (1996): 145–58. http://dx.doi.org/10.1002/pssb.2221940115.

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S, Sater. "Studying Some of Physical Properties of a Lead Doping Titanium Dioxide TiO₂: Pb with Different Ratios." Physical Science & Biophysics Journal 7, no. 1 (2023): 1–14. http://dx.doi.org/10.23880/psbj-16000230.

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Titanium dioxide TiO2 has witnessed great interest in international research laboratories due to its excellent properties. To study the changes in its physical properties, the structural properties of pure and lead-doped titanium dioxide powder samples were examined with different ratios (x = 0.2 - 0.5 - 0.7 - 0.9 g). The results of X-ray diffraction showed the participation of samples of anatase and rutile of the tetragonal crystal system and brookite of the orthorhombic crystal system based in the titanium dioxide compound with the peaks corresponding to the crystalline levels (110), (012),

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Ch Magid, Hayim, Hiba Saad Rasheed, and Rusul Adnan Al-Wardy. "Effect of Doping with Zinc Oxide on The Structural, Surface, and Optical Properties of Titanium Dioxide Thin Films." Samarra Journal of Pure and Applied Science 5, no. 2 (2023): 118–29. http://dx.doi.org/10.54153/sjpas.2023.v5i2.500.

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Titanium oxide thin films that are both undoped and doped with zinc have been produced in rates of (0, 2 and 4) %. The titanium oxide films doped with zinc were made by combining cadmium acetate with zinc acetate in a solution of titanium acetate with (0.2 M). X-ray diffraction tests showed that the films of undoped TiO2 and (TiO2: Zn) are polycrystalline with (121) orientation. Additionally, the crystallization of films rises as zinc doping level rises. With zinc doping concentration, the grain size of the deposited films is around (15.55-17.91) nm, while the strain (%) parameter decreases fr

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Wang, Li, Dong Mei Jia, and Zeng Qiang Zhao. "Photocatalytic Degradation of Methyl Orange Using Doped Titanium Dioxide Coating." Advanced Materials Research 955-959 (June 2014): 112–15. http://dx.doi.org/10.4028/www.scientific.net/amr.955-959.112.

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Titanium dioxide (TiO2) coating was prepared through dipping stainless steel net into titanium dioxide sol and then extracting it. The photocatalytic activities for all titanium dioxide coatings were tested by methyl orange degradation under ultraviolet and visible light irradiation. The photo-absorption property was determined by UV-Vis spectrophotometer. The titanium dioxide coating is photo-catalytically reactive for the degradation of methyl orange. The photo-catalytic activity is influenced by extraction times, degradation time, doping element and light source. La-doped titanium dioxide e

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Gökdemir, Fatma Pınar, Ayşe Evrim Saatci, Orhan Özdemir, and Kubilay Kutlu. "Structural Modification of Sol-Gel Synthesized V2O5and TiO2Thin Films with/without Erbium Doping." Advances in Materials Science and Engineering 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/795384.

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Comparative work of with/without erbium- (Er-) doped vanadium pentoxide (V2O5) and titanium dioxide (TiO2) thin films were carried out via sol-gel technique by dissolving erbium (III) nitrate pentahydrate (Er(NO3)3·5H2O) in vanadium (V) oxoisopropoxide (OV[OCH(CH3)2]3) and titanium (IV) isopropoxide (Ti[OCH(CH3)2]4). Effect of Er doping was traced by Fourier transform IR (FTIR), thermogravimetric/differential thermal (TG/DTA), and photoluminescence measurements. UV-Vis transmission/absorption measurement indicated a blue shift upon Er doping in V2O5film due to the softening of V=O bond while a

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Pham, Hieu H., and Lin-Wang Wang. "Electronic structures and current conductivities of B, C, N and F defects in amorphous titanium dioxide." Physical Chemistry Chemical Physics 17, no. 17 (2015): 11908–13. http://dx.doi.org/10.1039/c5cp00890e.

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Zheng, Entao, Feng Jiang, Guo Feng, et al. "Research progress of Fe/C doped titanium dioxide visible light photocatalytic materials." Journal of Physics: Conference Series 2510, no. 1 (2023): 012004. http://dx.doi.org/10.1088/1742-6596/2510/1/012004.

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Abstract Titanium dioxide (TiO2), as a wide gap semiconductor photocatalytic material, has the characteristics of non-toxic, low cost and excellent catalytic activity. It is widely used as photocatalytic materials. Much efforts have been devoted to the Fe/C doping for TiO2 to improve its visible light response. This work reviews the research progress of Fe/C doped titanium dioxide visible light photocatalytic materials. The photocatalytic mechanism, preparation methods of doped titanium dioxide have been specifically reviewed. Finally, on the basis of the researches of our team in nonaqueous p

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Zhang, Pei Lin, Shu Yin, and Tsugio Sato. "Co-Doping Effect of Metal Ion on the Visible Light Responsive Photocatalytic Properties of Nitrogen Doped Titanium Dioxide." Advances in Science and Technology 63 (October 2010): 36–40. http://dx.doi.org/10.4028/www.scientific.net/ast.63.36.

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Different valences of metal ions such as Fe3+ and Nb5+ were co-doped with nitrogen ion into titanium dioxide by hydrothermal method using metal chlorides and hexamethylenetetramine as the sources of metal ions and nitrogen ion, respectively. The co-doping of low-content metal ion showed no noticeable influence on the crystalline phases and specific surface area (S.S.A.) of the samples. Doping with Fe ion could significantly enhance the absorption in visible light region, but doping with Nb ion showed almost no effect. The photocatalytic activities of the samples were determined for the oxidati

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Bajili, Abdil, Dahyunir Dahlan, and Akrajas Ali Umar. "Sintesis Nanopartikel Titanium Dioksida Didoping Rhutenium." JURNAL ILMU FISIKA | UNIVERSITAS ANDALAS 8, no. 2 (2017): 54–59. http://dx.doi.org/10.25077/jif.8.2.54-59.2016.

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Nanopartikel titanium dioksoda (TiO2) yang didoping ruthenium (Ru/TiO2) ditumbuhi dengan menggunakan metode penumbuhan Liquid Phase Deposition (LPD) telah berhasil dilakukan. Konsentrasi doping ruthenium yang digunakan adalah 2,5 mM. Variasi lama waktu penumbuhan dilakukan selama 3 jam, 5 jam, 7 jam dan 10 jam. Kemudian dilakukan karakterisasi Ultraviolet-visible, fotoelektron sinar-x dan teknik difraksi sinar-x. Energi gap yang didapatkan dengan waktu penumbuhan 3 jam dan 5 jam adalah 3,22 eV dan 3,28 eV. Sedangkan waktu penumbuhan 7 jam dan 10 jam adalah 3,16 eV dan 3,29 eV. Morfologi dari R

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Oliveira, Iracema Nascimento de, Raphaella Ingrid Santana Oliveira, Eduarda Bezerra Pereira, Francine Ferreira Padilha, Silvia Maria Egues, and Maria Lucila Hernández-Macedo. "Synthesis and photocatalytic effects of TiO2-Ag on antibiotic-resistant bacteria." Peer Review 5, no. 8 (2023): 45–61. http://dx.doi.org/10.53660/400.prw1014b.

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Titanium dioxide (TiO2) is a semiconductor metal oxide extensively studied due to its photocatalytic properties that can be applied in various areas. However, the catalytic performance of TiO2 is limited at the UV spectrum, and the silver doping to titanium dioxide (Ag-TiO2) can increase the catalytic performance for visible light. In this work, Ag-doped TiO2 nanoparticles were synthesized to evaluate photocatalytic activity against sensitive and methicillin-resistant Staphylococcus aureus frequently associated with skin infections. The sol-gel method followed by Ag doping was applied to NPs s

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Chen, Qili, Min Liu, Kaihua He, and Bo Li. "Electronic Structures of S/C-Doped TiO2Anatase (101) Surface: First-Principles Calculations." International Journal of Photoenergy 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/816234.

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The electronic structures of sulfur (S) or carbon (C)-doped TiO2anatase (101) surfaces have been investigated by density functional theory (DFT) plane-wave pseudopotential method. The general gradient approximation (GGA) +U(Hubbard coefficient) method has been adopted to describe the exchange-correlation effects. All the possible doping situations, including S/C dopants at lattice oxygen (O) sites (anion doping), S/C dopants at titanium (Ti) sites (cation doping), and the coexisting of anion and cation doping, were studied. By comparing the formation energies, it was found that the complex of

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