# 2D‐to‐1D Conversion of a Layered Sodium Titanate via Rational Framework Splitting for Highly Efficient Cation Exchange

https://mdr.nims.go.jp/datasets/3a5ddd83-c830-418a-886e-4cd4dd924b6b

## File

- [24_SmallMethod_MDR_r.docx](https://mdr.nims.go.jp/filesets/e1c14367-2ee4-4872-bf18-30aa40b32fa1/download) ([Detail](https://mdr.nims.go.jp/filesets/e1c14367-2ee4-4872-bf18-30aa40b32fa1.md))

## Id

3a5ddd83-c830-418a-886e-4cd4dd924b6b

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-12-23T04:30:43.558195Z

## Updated at

2025-12-23T06:16:56.664122Z

## Published at

2025-12-23T07:20:19.204251Z

## Doi

https://doi.org/10.48505/nims.6058

## First published url

https://doi.org/10.1002/smtd.202400947

## Date published

2024-11-14

## Recorded date published

2025-3

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: 2D‐to‐1D Conversion of a Layered Sodium Titanate via Rational Framework Splitting
    for Highly Efficient Cation Exchange
  title_type: original
  lang: en

## Description

- description: Demand on high-performance ion exchangers is ever-increasing in energy
    and environment applications. Among many cation exchangers, layered alkali titanates
    generally show larger cation exchange capacity, but slower cation exchange rate
    due to their two-dimensional (2D) micrometer-size particle morphologies, which
    limits their practical applications. Here, we report a rational conversion of
    a layered sodium titanate, Na2Ti3O7, to the corresponding one-dimensional (1D)
    ultra-narrow nanowires via hydrothermal treatment under basic conditions. The
    formation of nanowires is thought to involve the partial exfoliation of Na2Ti3O7
    to form thin plate-like particles that subsequently split into nanowires along
    a crystallographically defined, chemically selective weakness in the Na2Ti3O7
    crystals. This process is similar to a recently burgeoning materials design using
    atomic-level weakness in solids, such as zeolites and metal-organic frameworks.
    Our proposed formation scheme is further supported by comparative experiments
    performed on another layered alkali titanate, K0.8Ti1.73Li0.27O4, which possesses
    randomly distributed defects at the Ti sites. Thanks to the shortening of diffusion
    path lengths of the interlayer cations, the resulting Na2Ti3O7 nanowires show
    an excellent cation exchange performance toward Cd2+ in aqueous solution, exceeding
    several existing cation exchanges such as zeolites and organic resins.
  description_type: abstract
  lang: und

## Creator

- name: Esraa Moustafa
  role: author
- name: Mohamed Esmat
  role: author
  orcid: https://orcid.org/0000-0003-1465-0955
- name: Akio Iwanade
  role: author
- name: Makoto Oishi
  role: author
- name: Takuro Nagai
  role: author
  orcid: https://orcid.org/0000-0001-5239-3334
- name: Nao Tsunoji
  role: author
- name: Naoki Fukata
  role: author
  orcid: https://orcid.org/0000-0002-0986-8485
- name: Watcharop Chaikittisilp
  role: author
  orcid: https://orcid.org/0000-0002-3240-0821
- name: Yusuke Ide
  role: author
  orcid: https://orcid.org/0000-0002-6901-6954

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: ion exchange
  schema: not_defined
- subject: layered titanate
  schema: not_defined
- subject: MOF
  schema: not_defined
- subject: zeolite
  schema: not_defined
- subject: nanowire
  schema: not_defined

## Rights

- description: 'This is the peer reviewed version of the following article: E. Moustafa,
    M. Esmat, A. Iwanade, M. Oishi, T. Nagai, N. Tsunoji, N. Fukata, W. Chaikittisilp,
    Y. Ide, 2D-to-1D Conversion of a Layered Sodium Titanate via Rational Framework
    Splitting for Highly Efficient Cation Exchange. Small Methods 2025, 9, 2400947,
    which has been published in final form at https://doi.org/10.1002/smtd.202400947.
    This article may be used for non-commercial purposes in accordance with Wiley
    Terms and Conditions for Use of Self-Archived Versions. This article may not be
    enhanced, enriched or otherwise transformed into a derivative work, without express
    permission from Wiley or by statutory rights under applicable legislation. Copyright
    notices must not be removed, obscured or modified. The article must be linked
    to Wiley’s version of record on Wiley Online Library and any embedding, framing
    or otherwise making available the article or pages thereof by third parties from
    platforms, services and websites other than Wiley Online Library must be prohibited.'
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2024-11-14
end_date: 2025-11-14

## Journal

- title: Small Methods
  issn: '23669608'
  volume: '9'
  issue: '3'
  article_number: '2400947'

## Conference



## Related item



## Funding

- identifier: JPMXP1223NM51
  funder_name: MEXT

## Instrument



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filename: 24_SmallMethod_MDR_r.docx