ArticleACS nano2025
Concentration-Dependent Control of the Band Gap Energy of a Low-Dimensional Lepidocrocite Titanate.
Article in ACS nano, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Binder-Free Direct Ink Writing of a Concentrated Dispersion of One-Dimensional Lepidocrocite Titanate Nanofilaments.ACS nanoscience Au · 2026Article
- Article
- Immunomodulatory copper-based polyphenol nanozyme for diabetic infectious wound healing via NIR amplified cuproptosis bacteriostat in synergy with ferroptosis inhibition anti-inflammation.Bioactive materials · 2025Article
- Surface Properties of Colloidal Quantum-Confined One-Dimensional Lepidocrocite Titanates: Insights into their Ion-Induced Gelation.Langmuir : the ACS journal of surfaces and colloids · 2025Article
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Recently, we reported on the simple, scalable synthesis of quantum-confined one-dimensional (1D) lepidocrocite titanate nanofilaments (1DLs). Herein, we show, using solid-state UV-vis spectroscopy, that reducing the concentration of aqueous 1DL colloidal suspensions from 40 to 0.01 g/L increases the band gap energy and light absorption onset of dried filtered films from ≈3.5 to ≈4.5 eV. This range is ascribed to quantum confinement as the system transitions from two-dimensional (2D) into 1D with dilution. It is only after the colloidal suspensions are dried and the 1DLs start to self-assemble into ribbons and sheets that the band gap values change. This self-assembly is manifested in the X-ray diffraction patterns and the emergence of a Raman band characteristic of 2D lepidocrocite titanates. In colloidal form, 1DLs exhibit a lyotropic liquid crystal phase with a critical concentration of between 10 and 1 g/L. Additionally, the Beer-Lambert law applies with a mass absorbance coefficient of 2 ± 0.4 Lg
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