Results 71 to 80 of about 9,819 (225)

Effect of Acetic Acid on Morphology, Structure, Optical Properties, and Photocatalytic Activity of TiO₂ Obtained by Sol–Gel

Reactions
Titanium oxide (TiO2) is of great interest in solar cell manufacturing, hydrogen production, and organic compound photodegradation. The synthesis variables and methodology affect the morphology, texture, crystalline structure, and phase mixtures of TiO2,
Sofía Estrada-Flores, Tirso E. Flores-Guia, Catalina M. Pérez-Berumen, Luis A. García-Cerda, Aurora Robledo-Cabrera, Elsa N. Aguilera-González, Antonia Martínez-Luévanos   +6 more
doaj   +1 more source

Mesoporous Titania powders: the role of precursors, ligand addition and calcination rate on their morphology, crystalline structure and photocatalytic activity [PDF]

, 2014
We evaluate the influence of the use of different titania precursors, calcination rate, and ligand addition on the morphology, texture and phase content of synthesized mesoporous titania samples, parameters which, in turn, can play a key role in titania ...
Baró, Maria Dolores, Enzo, Stefano, Garroni, Sebastiano, Herrmann-Geppert, Iris, Masolo, Elisabetta, Meloni, Manuela, Mulas, Gabriele Raimondo Celestino, Pilo, Maria Itria, Rossinyol, Emma, Rzeszutek, Agnieszka   +9 more
core   +5 more sources

Effects of Thermal Modification of Cerium‐Doped Black Titanium Dioxide Nanoparticles for Improved Light Absorption in Perovskite Solar Cells

ChemistrySelect, Volume 11, Issue 13, 6 April 2026.
The graphical abstract describes the synthesis of Ce‐black‐TiO2 via sol‐gel and hydrogenation, followed by thermal treatment to optimize properties. The material is used in perovskite solar cells with layered architecture. It improves charge transport, reduces defects, and enhances efficiency by facilitating electron and hole movement, increasing power
Tebogo Cosby Selema, L. J. Mollo, Bhekumuzi P. Gumbi, Thabiso Eric Motaung, T. D Malevu   +4 more
wiley   +1 more source

Phase separation in lithium intercalated anatase: A theory [PDF]

, 2009
Lithium intercalated anatase used in Li-ion batteries has some special features: coexistence of Li-rich and Li-poor phases as well as two possible positions for Li ions in the oxygen tetrahedron.
Stasyuk, I. V., Velychko, O. V.
core   +4 more sources

Hybrid TiN ‐ MXene Photoanodes Drive Efficient Photoelectrochemical Water Splitting

Solar RRL, Volume 10, Issue 5, 12 March 2026.
The photoelectrochemical (PEC) system based on an optimized TiO2‐MXene‐TiN hybrid (MXene:TiN 1:4 wt %) hybrid network sensitized with CdS/CdSe/ZnS QDs yields a photocurrent density of 15.80 mA cm−2 under 1 sun illumination (AM 1.5G, 100 mW cm−2, having 55% higher than control TiO2/QDs device (7.20 mA cm−2).
Parul Bansal, Gurpreet Singh Selopal, Kokilavani Shanmugasundaram, Hadis Zarrin, Federico Rosei   +4 more
wiley   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, Volume 36, Issue 21, 12 March 2026.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

First-principles DFT+GW study of oxygen vacancies in rutile TiO2

, 2014
We perform first-principles calculations of the quasiparticle defect states, charge transition levels, and formation energies of oxygen vacancies in rutile titanium dioxide.
Jain, Manish, Louie, Steven G., Malashevich, Andrei   +2 more
core   +1 more source

Photocatalytic Fe-doped n-TiO2: From synthesis to utilization of in vitro cell models for screening human and environmental nanosafety [PDF]

, 2017
The utilization of different types nanomaterials (NMs) in environmental remediation and wastewatertreatment requires information on the potential harmful effects on human and environmental health.
Balbi, Balbi, Camisassi, Giulia, Canesi, Laura, Caratto, Caratto, Fabbri, Rita, Ferretti, Maurizio, Villa, Silvia   +6 more
core   +1 more source

Pressure-Induced Phase Transitions of Natural Brookite [PDF]

ACS Earth and Space Chemistry, 2019
The structures and stabilities of the high-pressure phases of titania (TiO2) are of great interest in the earth sciences, as these phases are the accessible analogs of component minerals in the earth’s mantle. Brookite is a natural titania mineral, whose bulk phase is hard to synthesize in the laboratory, and its phase behavior at very high pressure ...
Weixin Liu, Jian Chen, Xiaoliang Zhang, Jinyuan Yan, Mingqiang Hou, Martin Kunz, Dongzhou Zhang, Hengzhong Zhang   +7 more
openaire   +3 more sources

Combinatorial Nb‐Doped TiO2 Wafers: Phase‐Defect Coengineering for Efficient and Reusable Photocatalysis

Advanced Energy and Sustainability Research, Volume 7, Issue 3, March 2026.
Combinatorial Nb‐doped TiO2 wafers with a lateral dopant gradient enable rapid mapping of how phase composition and defects influence photocatalytic activity. Optimized Nb content generates mixed anatase–rutile phases together with beneficial Ti3+ and oxygen vacancy defects, boosting dye‐degradation efficiency fivefold.
Raja Elrahoumi, Dinushi Munasingha Mudiyanselage, Amar Salih, Matthew Arnold, Angus Gentle, Estelle Wagner, William Maudez, Sanaa A. Alzahrani, Matthew R. Phillips, Giacomo Benvenuti, Cuong Ton‐That   +10 more
wiley   +1 more source