Black TiO has emerged as one of the most promising photocatalysts recently discovered. The reason behind its catalytic activity is considered to be due to the presence of defects and Ti species at the surface of black TiO nanostructures, which are crucial for its diverse applications. Moreover, disordered/crystalline surface layers and bulk regions have been identified and appear to influence the intrinsic properties of the material. Here, we present the latest studies on the use of black TiO for metal free hydrogen production, as well as for CO photoreduction and N photofixation. After highlighting the structure/property relations, we conclude with some critical questions and suggest further topics of research in order to better understand the underlying mechanisms of light absorption in black TiO , especially towards solar fuels production.
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http://dx.doi.org/10.1002/cphc.201801094 | DOI Listing |
Environ Res
December 2024
Center for Water Research, Advanced Institute of Natural Sciences, Beijing Normal University, Zhuhai, 519087, China; Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, 117576, Singapore. Electronic address:
The heterogeneous catalysis of the composite membrane not only exerts the synergistic effect of different materials but also enable the recyclable use of catalysts, making it an ideal and sustainable strategy for removing pollutants in water. In this study, a novel black phosphorus/graphene/titanium dioxide (BP/GR/TiO) membrane was successfully prepared through the sol-gel method. The composite membrane not only overcame the instability of black phosphorus and the rapid recombination of e/h pairs in titanium dioxide but also synergized with GR to produce a new reactive oxygen species (ROS), singlet oxygen (O), with a longer lifetime and migration distance.
View Article and Find Full Text PDFUnderstanding the biokinetics of nanoparticles will support the identification of target organs for toxicological endpoints. We investigated the biokinetics of poorly soluble nanomaterials carbon black, multi-walled carbon nanotubes (MWCNT), cerium oxide (CeO), titanium dioxide (TiO), crystalline silica (SiO) in inhalation studies in rodents (the soluble amorphous silica was also included). By reviewing research papers on the inhalation of these substances, we collected physico-chemical data and elemental distribution to organs, urine, and feces.
View Article and Find Full Text PDFACS Nano
December 2024
Department of Chemistry, University of California, Riverside, California 92521, United States.
Light-printable rewritable paper that can be used multiple times has attracted extensive attention because of its potential benefits in reducing environmental pollution and energy consumption. Developing rewritable paper with high black-to-colorless contrast, lasting legibility, and a fast response is fascinating but challenging. Here, we integrate the redox chemistry of Cu ions into photoreductive TiO nanoparticles to produce Cu-doped TiO nanoparticles capable of highly photoreversible switching between colorless and black with excellent contrast and color stability.
View Article and Find Full Text PDFMaterials (Basel)
October 2024
Laboratoire de Photovoltaïque, Centre de Recherches et des Technologies de l'Energie, Technopole de Borj Cédria, BP 95, Hammam-Lif 2050, Tunisia.
This study presents a comparative analysis of anodization and hydrothermal techniques for synthesizing TiO nanotubes directly on titanium foil. It emphasizes its advantages as a substrate due to its superior conductivity and efficient charge transfer. Optimized synthesis conditions enable a thorough evaluation of the resulting nanotubes' morphology, structure, and optical properties, ultimately assessing their photoelectrochemical and photocatalytic performances.
View Article and Find Full Text PDFChem Rev
November 2024
School of Computer, Data and Mathematical Sciences, Western Sydney University, Penrith, New South Wales 2752, Australia.
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