Open Access

Scientific Reports

, volume 11 , issue 1 , publication number 15236

Spontaneously formed gradient chemical compositional structures of niobium doped titanium dioxide nanoparticles enhance ultraviolet- and visible-light photocatalytic performance

Naoki Tarutani ^{1, 2, 3}

Ryuma Kato ²

Tetsuo Uchikoshi ^{3, 4}

Takamasa Ishigaki ^{2, 3}

Hide authors affiliations Show authors affiliations: 4 affiliations

Applied Chemistry Program, Graduate School of Advanced Science and Engineering, Hiroshima University, Hiroshima, Japan |

Department of Chemical Science and Technology, Faculty of Bioscience and Applied Chemistry, Hosei University, Tokyo, Japan |

Research Center for Micro-Nano Technology, Hosei University, Tokyo, Japan |

⁴

Research Center For Functional Materials, National Institute for Materials Science, Tsukuba, Japan |

Publication type: Journal Article

Publication date: 2021-07-30

Springer Nature

Scientific Reports

scimago Q1

wos Q1

SJR: 0.874

CiteScore: 6.7

Impact factor: 3.9

ISSN: 20452322

DOI: 10.1038/s41598-021-94512-x

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PubMed ID: 34330956

Multidisciplinary

Abstract

Semiconductor photocatalysts showing excellent performance under irradiation of both ultraviolet (UV)- and visible (VIS)-light are highly demanded towards realization of sustainable energy systems. TiO2 is one of the most common photocatalysts and has been widely investigated as candidate showing UV/VIS responsive performance. In this study, we report synthesis of Nb doped TiO2 by environmentally benign mechanochemical reaction. Nb atoms were successfully incorporated into TiO2 lattice by applying mechanical energy. As synthesized Nb doped TiO2 were metastable phase and formed chemical compositional gradient structure of poorly Nb doped TiO2 core and highly Nb doped TiO2 surface after high temperature heat treatment. It was found that formed gradient chemical compositional heterojunctions effectively enhanced photocatalytic performance of Nb doped TiO2 under both of UV- and VIS-light irradiation, which is different trend compared with Nb doped TiO2 prepared through conventional methods. The approach shown here will be employed for versatile systems because of simple and environmentally benign process.

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Tarutani N. et al. Spontaneously formed gradient chemical compositional structures of niobium doped titanium dioxide nanoparticles enhance ultraviolet- and visible-light photocatalytic performance // Scientific Reports. 2021. Vol. 11. No. 1. 15236

GOST all authors (up to 50) Copy

Tarutani N., Kato R., Uchikoshi T., Ishigaki T. Spontaneously formed gradient chemical compositional structures of niobium doped titanium dioxide nanoparticles enhance ultraviolet- and visible-light photocatalytic performance // Scientific Reports. 2021. Vol. 11. No. 1. 15236

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RIS Copy

TY - JOUR

DO - 10.1038/s41598-021-94512-x

UR - https://doi.org/10.1038/s41598-021-94512-x

TI - Spontaneously formed gradient chemical compositional structures of niobium doped titanium dioxide nanoparticles enhance ultraviolet- and visible-light photocatalytic performance

T2 - Scientific Reports

AU - Tarutani, Naoki

AU - Kato, Ryuma

AU - Uchikoshi, Tetsuo

AU - Ishigaki, Takamasa

PY - 2021

DA - 2021/07/30

PB - Springer Nature

IS - 1

VL - 11

PMID - 34330956

SN - 2045-2322

ER -

BibTex

Cite this

BibTex (up to 50 authors) Copy

@article{2021_Tarutani,

author = {Naoki Tarutani and Ryuma Kato and Tetsuo Uchikoshi and Takamasa Ishigaki},

title = {Spontaneously formed gradient chemical compositional structures of niobium doped titanium dioxide nanoparticles enhance ultraviolet- and visible-light photocatalytic performance},

journal = {Scientific Reports},

year = {2021},

volume = {11},

publisher = {Springer Nature},

month = {jul},

url = {https://doi.org/10.1038/s41598-021-94512-x},

number = {1},

pages = {15236},

doi = {10.1038/s41598-021-94512-x}

}

Publisher

Springer Nature

Journal

Scientific Reports

scimago Q1

wos Q1

SJR

0.874

CiteScore

6.7

Impact factor

3.9

ISSN

20452322 (Print, Electronic)