Structural Analysis of Colloidal Titania‐Based Ribbons and Their Self‐Assembly upon Drying

Synchrotron‐based small‐ and wide‐angle X‐ray scattering is used to elucidate the structure of low‐dimensional lepidocrocite–titanate‐based nanofilaments. In the colloidal state, they consist of quantum‐confined 1D NFs, loosely associated into nanoribbons, one lepidocrocite sheet thick (about 4 Å), 30–40 Å wide (5–8 NFs), and more than 300 Å long. In the dry state, they reach a final state of extended sheets, stacked three to about twenty high, whose crystallinity increases with stack height, in parallel with a decrease in photocatalytic activity. These findings suggest a kinetic pathway for the self‐assembly of initially 1D titanate nanoribbons into 2D and ultimately 3D structures, providing context for a recent body of work on these low‐dimensional materials.

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Publication Details

Journal
Small Structures
Published
2025-04-22
DOI
https://doi.org/10.1002/sstr.202500017
Citations
5
Primary Topic
Advanced Photocatalysis Techniques
Type
article
Field-Weighted Citation Impact
1.82

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article

Structural Analysis of Colloidal Titania‐Based Ribbons and Their Self‐Assembly upon Drying

Michel W. Barsoum, Hussein O. Badr, Doru Constantin, Andrei Kuncser et al.
5 citations
Small Structures
Advanced Photocatalysis Techniques
1.82
article

Structural Analysis of Colloidal Titania‐Based Ribbons and Their Self‐Assembly upon Drying

Michel W. Barsoum, Hussein O. Badr, Doru Constantin, Andrei Kuncser, Florentina Neațu, Saı̈d Boukhris, Alexandra C. Iacoban, Mihaela Florea, Ștefan Neațu, Mohamed A. Ibrahim
article en
5 citations

Abstract

Synchrotron‐based small‐ and wide‐angle X‐ray scattering is used to elucidate the structure of low‐dimensional lepidocrocite–titanate‐based nanofilaments. In the colloidal state, they consist of quantum‐confined 1D NFs, loosely associated into nanoribbons, one lepidocrocite sheet thick (about 4 Å), 30–40 Å wide (5–8 NFs), and more than 300 Å long. In the dry state, they reach a final state of extended sheets, stacked three to about twenty high, whose crystallinity increases with stack height, in parallel with a decrease in photocatalytic activity. These findings suggest a kinetic pathway for the self‐assembly of initially 1D titanate nanoribbons into 2D and ultimately 3D structures, providing context for a recent body of work on these low‐dimensional materials.

Small StructuresVol. 6(8)
Centre National de la Recherche Scientifique (FR), University of Bucharest (RO), Institut Charles Sadron (FR), National Institute of Materials Physics (RO), Mihail Kogălniceanu University (RO), Université de Strasbourg (FR), Drexel University (US), Stanford University (US)
National Science Foundation, Division of Materials Research
Openalex Percentile: Top 15%
Advanced Photocatalysis Techniques
1.82
DOIOpen Access PDFOpenAlex
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Structural Analysis of Colloidal Titania‐Based Ribbons and Their Self‐Assembly upon Drying — Michel W. Barsoum, Hussein O. Badr, et al. · Small Structures (2025) | TGRS Research Map | TGRS