Journal article
Titanium Oxysulfate‐Derived 1D Lepidocrocite Titanate Nanostructures
Advanced materials interfaces, v 12(10), 2400866
20 Nov 2024
Abstract
Nanostructured titania, TiO 2 , holds significant importance in various scientific fields and technologies for their distinctive properties and multipurpose characteristics. In this article, the facile, economical, and scalable synthesis of 1D lepidocrocite, 1DL, titania nanostructures derived from a water‐soluble Ti precursor, titanium oxysulfate (with oxidation of Ti +4 ) at temperature <100 °C under atmospheric pressure is discussed. Titanium oxysulfate with tetramethyl ammonium hydroxide, TMAH, is simply reacted to yield individual lepidocrocite titania‐based chain‐forming nanofilaments, NFs, 6 × 6 Å 2 in minimal cross‐section and aspect ratios of ≈20 1DLs. If only ethanol is used for washing, the 1DL self‐assemble into ≈10 µm, porous mesostructured particles, PMPs. If water is used, quasi‐2D sheets form instead. Characterization of the resulting powders showed them to be quite similar to those derived from TiB 2 , and other water‐insoluble Ti precursors. The 1DL bandgap energies are ≈4 eV, due to quantum confinement. They adsorbed rhodamine 6G. The latter also sensitized the 1DLs and allowed for dye degradation using only visible light. Used as electrodes in supercapacitors, the 1DLs can be cycled over 1.6 V and result in high power densities (300 W kg −1 ). Stronger birefringence started to appear in samples with concentrations >15 gL −1 indicating the formation of a liquid crystal phase. This new synthesis protocol enables the cheaper scalable production of 1DLs with significant implications across various fields.
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Details
- Title
- Titanium Oxysulfate‐Derived 1D Lepidocrocite Titanate Nanostructures
- Creators
- Sukanya Maity - Linköping UniversityMohamed Ibrahim - Drexel UniversityHussein Badr - Drexel UniversityTreesa Reji - Drexel UniversityMary Q. Hassig - Drexel UniversityTongjie Zhang - Drexel UniversityChristopher Li - Drexel UniversityJohanna Rosén - Linköping UniversityMichel W. Barsoum (Corresponding Author) - Drexel University
- Publication Details
- Advanced materials interfaces, v 12(10), 2400866
- Publisher
- Wiley
- Number of pages
- 14
- Grant note
- Knut and Alice Wallenberg: 2019.0433, KAW 2020.0033 Knut and Alice Wallenberg (KAW) Foundation for a Scholar Grant: EM16-0004 Swedish Foundation for Strategic Research (SSF)European Reaserch Council: 101087713 European Union (ERC)
The authors acknowledge support from the Knut and Alice Wallenberg (KAW) Foundation for a Scholar Grant (2019.0433) and Project funding (KAW 2020.0033), and from the Swedish Foundation for Strategic Research (SSF) for a Synergy Program (EM16-0004), and European Reaserch Council, European Union (ERC, MULTI2D, 101087713).
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering; Chemical and Biological Engineering
- Web of Science ID
- WOS:001360154800001
- Scopus ID
- 2-s2.0-85209817154
- Other Identifier
- 991021963515704721
InCites Highlights
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary
- Materials Science, Multidisciplinary