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Mapping surface-modified titania nanoparticles with implications for activity and facet control

Author

Listed:
  • Yung-Kang Peng

    (University of Oxford)

  • Yichen Hu

    (Fudan University)

  • Hung-Lung Chou

    (National Taiwan University of Science and Technology)

  • Yingyi Fu

    (Fudan University)

  • Ivo F. Teixeira

    (University of Oxford)

  • Li Zhang

    (Fudan University)

  • Heyong He

    (Fudan University)

  • Shik Chi Edman Tsang

    (University of Oxford)

Abstract

The use of surface-directing species and surface additives to alter nanoparticle morphology and physicochemical properties of particular exposed facets has recently been attracting significant attention. However, challenges in their chemical analysis, sometimes at trace levels, and understanding their roles to elucidate surface structure–activity relationships in optical (solar cells) or (photo)catalytic performance and their removal are significant issues that remain to be solved. Here, we show a detailed analysis of TiO2 facets promoted with surface species (OH, O, SO4, F) with and without post-treatments by 31P adsorbate nuclear magnetic resonance, supported by a range of other characterization tools. We demonstrate that quantitative evaluations of the electronic and structural effects imposed by these surface additives and their removal mechanisms can be obtained, which may lead to the rational control of active TiO2 (001) and (101) facets for a range of applications.

Suggested Citation

  • Yung-Kang Peng & Yichen Hu & Hung-Lung Chou & Yingyi Fu & Ivo F. Teixeira & Li Zhang & Heyong He & Shik Chi Edman Tsang, 2017. "Mapping surface-modified titania nanoparticles with implications for activity and facet control," Nature Communications, Nature, vol. 8(1), pages 1-13, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-00619-z
    DOI: 10.1038/s41467-017-00619-z
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    Cited by:

    1. Jia-Huan Du & Lu Chen & Bing Zhang & Kuizhi Chen & Meng Wang & Yang Wang & Ivan Hung & Zhehong Gan & Xin-Ping Wu & Xue-Qing Gong & Luming Peng, 2022. "Identification of CO2 adsorption sites on MgO nanosheets by solid-state nuclear magnetic resonance spectroscopy," Nature Communications, Nature, vol. 13(1), pages 1-6, December.
    2. Wenjie Zang & Jaeha Lee & Peter Tieu & Xingxu Yan & George W. Graham & Ich C. Tran & Peikui Wang & Phillip Christopher & Xiaoqing Pan, 2024. "Distribution of Pt single atom coordination environments on anatase TiO2 supports controls reactivity," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

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