Results 31 to 40 of about 1,843 (177)

Lattice and Surface Engineering of Transition Metal Oxide Photoanodes for Efficient Photoelectrochemical Water Splitting

EcoEnergy, EarlyView.
This review highlights phase control, facet control, and atomic vacancy engineering as key strategies to enhance charge transport, light harvesting, and surface activity in PEC photoanodes. ABSTRACT Photoelectrochemical (PEC) water splitting is a promising approach for converting solar energy into hydrogen, yet the performance of transition metal oxide
Seonmi Ko, Jehoon Lee, Tae Sung Kim, Taeuk Park, Hyo Jin Park, Junyeob Yeo   +5 more
wiley   +1 more source

Unveiling the synergistic role of anatase/brookite homojunctions in TiO2 mixed phases on the enhanced photocatalytic degradation of paracetamol under simulated solar light and the formation of CO2.− radical ion

Applied Surface Science Advances
Mixed-phase TiO₂ systems offer unique opportunities for enhancing photocatalytic performance via interpolymorph junctions (homojunctions). While anatase/rutile interfaces have been extensively studied, anatase/brookite junctions remain comparatively ...
Nicola Blangetti, Francesca S. Freyria, Maela Manzoli, Paola Rivolo, Alessandro Piovano, Hamideh Darjazi, Nicoletta Ditaranto, Barbara Patrizi, Sandra Doria, Barbara Bonelli   +9 more
doaj   +1 more source

Laser‐Induced‐Structural Transformation in Ti3CNTx MXene Monitored by Raman Spectroscopy with DFT Insight

Small, EarlyView.
A multi‐wavelength Raman study of microwave‐assisted hydrothermal Ti3CNTx MXene, supported by theoretical calculations, identifies laser‐power thresholds and evaluates its ambient‐condition stability. ABSTRACT MXenes are emerging 2D nanomaterials that have attracted growing attention for their highly tunable atomic structure, composition, and surface ...
Subrata Ghosh, Narayan N. Som, Muhammad Abiyyu Kenichi Purbayanto, Dorota Moszczyńska, Anna Wójcik, Carlo S. Casari, Agnieszka Maria Jastrzębska, Madhurya Chandel   +7 more
wiley   +1 more source

High-fraction brookite films from amorphous precursors [PDF]

Scientific Reports, 2017
AbstractStructure-specific synthesis processes are of key importance to the growth of polymorphic functional compounds such as TiO2, where material properties strongly depend on structure as well as chemistry. The robust growth of the brookite polymorph of TiO2, a promising photocatalyst, has been difficult in both powder and thin-film forms due to the
James E. S. Haggerty, Laura T. Schelhas, Daniil A. Kitchaev, John S. Mangum, Lauren M. Garten, Wenhao Sun, Kevin H. Stone, John D. Perkins, Michael F. Toney, Gerbrand Ceder, David S. Ginley, Brian P. Gorman, Janet Tate   +12 more
openaire   +5 more sources

Ammonia Oxidation for Energy Conversion and Environmental Remediation: Mechanism‐Guided Catalyst Design for Electrochemical, Photocatalytic, and Photoelectrochemical Systems

Small, EarlyView.
This review establishes a mechanism‐guided framework for catalyst design in electrochemical, photocatalytic, and photoelectrochemical ammonia oxidation. By correlating catalyst structure, reaction mechanisms, catalytic performance, and device‐level architectures, it highlights rational engineering strategies and future directions toward efficient ...
Dong Hyun Heo, Won Young Song, Mi Gyoung Lee   +2 more
wiley   +1 more source

Nanostructured titanium dioxide-based photocatalysts for self-cleaning concrete: аssessment of effects of phase composition on photocatalytic activity of TiO2 [PDF]

Нанотехнологии в строительстве
Introduction. Currently, the development of photocatalytically active cement-based materials with self-cleaning properties is a promising area of building materials science.
Artemy S. Balykov, Denis B. Chugunov, Vladimir M. Kyashkin, Natalia S. Davydova   +3 more
doaj   +1 more source

Insights Into the Mechanistic Assessment of Plasmon‐Induced Aqueous Degradation of Pharmaceuticals by TiO2/Ag Nano‐Composite

Water and Environment Journal, EarlyView.
ABSTRACT Pharmaceutical contaminants in potable water sources are ubiquitous and have resulted in lowered water quality. Thus, two common broad‐spectrum pharmaceuticals (tetracycline‐TC and ciprofloxacin‐CPF) were comparatively photo‐degraded using Ag‐doped TiO2 photocatalyst species containing Ag nanoparticles at 2.5, 5, and 7.5 wt%.
Shirley P. Onkani, Paul N. Diagboya, Samson O. Akpotu, Fanyana Mtunzi   +3 more
wiley   +1 more source

ZrO2–TiO2 Core–Shell Composites for Cocatalyst‐Free Photocatalytic Hydrogen Evolution From Aqueous Methanol Solution

ChemPhotoChem, Volume 10, Issue 8, August 2026.
ZrO2@TiO2 core–shell composites are active photocatalysts in the cocatalyst‐ free H2 evolution from 20 vol% aqueous methanol solution at 30 °C as opposed to bulk mixed oxides (ZrO2–TiO2) of similar composition. Defect‐related surface states, confirmed by electron paramagnetic resonance, exert a more significant influence on photocatalytic activity than
Rian Kurniawan, Michael Goepel, Muhammad Fernadi Lukman, Andreas Pöppl, Roger Gläser   +4 more
wiley   +1 more source

Effect of time of hydrothermal heat treatment on mesoporous nano-TiO2 synthesis

Cerâmica, 2021
Mesoporous TiO2 nanoparticles were synthesized by the sol-gel method and using hydrothermal treatment at 200 ºC during different time intervals, which allowed the evaluation of the time or the treatment on the structural, morphological, and optical ...
L. M. Santos, D. J. R. da Silva, M. R. C. Santos, A. E. H. Machado   +3 more
doaj   +1 more source

Raman Line Scan Analyses and a New Hypothesis for the Formation of Anatase‐Hosting Microbialites: Study of the Stromatolites From Saint‐Jean‐de‐la‐Rivière, Cotentin, France

Journal of Raman Spectroscopy, Volume 57, Issue 8, Page 1463-1480, August 2026.
Micrometer analysis of millimeter lines of Raman spectra concludes in the association of anatase and graphitized organic matter (graphogen). The photosynthetic microorganisms at the origin of the microbialites produce O2, which is transformed by TiO2 into reactive species that, in turn, decompose the organic matter of the microorganisms. ABSTRACT Raman
Marie‐Paule Bassez
wiley   +1 more source