Maximizing the visible light photoelectrochemical activity of B/N-doped anatase TiO2 microspheres with exposed dominant {001} facets

Xingxing Hong; Yuyang Kang; Chao Zhen; Xiangdong Kang; Li-Chang Yin; John T. S. Irvine; Lianzhou Wang; Gang Liu; Hui-Ming Cheng

doi:10.1007/s40843-018-9234-y

Maximizing the visible light photoelectrochemical activity of B/N-doped anatase TiO₂ microspheres with exposed dominant {001} facets

Xingxing Hong, Yuyang Kang, Chao Zhen, Xiangdong Kang, Li-Chang Yin, John T. S. Irvine, Lianzhou Wang, Gang Liu, Hui-Ming Cheng

Research output: Contribution to journal › Article › peer-review

Abstract

Anatase TiO₂ microspheres with exposed dominant BBBBB001BBBBB facets were doped with interstitial boron to have a concentration gradient with the maximum concentration at the surface. They were then further doped with substitutional nitrogen by heating in an ammonia atmosphere at different temperatures from 440 to 560°C to give surface N concentrations ranging from 7.03 to 15.47 at%. The optical absorption, atomic and electronic structures and visible-light photoelectrochemical water oxidation activity of these materials were investigated. The maximum activity of the doped TiO₂ was achieved at a nitrogen doping temperature of 520°C that gave a high absorbance over the whole visible light region but with no defect-related background absorption.

Original language	English
Pages (from-to)	831-838
Number of pages	8
Journal	Science China Materials
Volume	61
Issue number	6
Early online date	15 Mar 2018
DOIs	https://doi.org/10.1007/s40843-018-9234-y
Publication status	Published - Jun 2018

Keywords

Photoelectrochemistry
Red TiO2
Water splitting
Doping

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1007/s40843-018-9234-y

Hong_2018_SCM_Visiblelight_AAM
© Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1007/s40843-018-9234-y
Accepted author manuscript, 1.48 MB
SupplInformation_ScienceChinaMaterialsAccepted author manuscript, 368 KB

Newton Fellowship: Designing layered photocatalysts with tailored properties for solar fuels
Irvine, J. T. S. (PI)
The Royal Society
1/03/15 → 28/02/19
Project: Fellowship

Cite this

@article{f1e78c25d781490db60a387ed610ab0c,

title = "Maximizing the visible light photoelectrochemical activity of B/N-doped anatase TiO2 microspheres with exposed dominant {001} facets",

abstract = "Anatase TiO2 microspheres with exposed dominant BBBBB001BBBBB facets were doped with interstitial boron to have a concentration gradient with the maximum concentration at the surface. They were then further doped with substitutional nitrogen by heating in an ammonia atmosphere at different temperatures from 440 to 560°C to give surface N concentrations ranging from 7.03 to 15.47 at%. The optical absorption, atomic and electronic structures and visible-light photoelectrochemical water oxidation activity of these materials were investigated. The maximum activity of the doped TiO2 was achieved at a nitrogen doping temperature of 520°C that gave a high absorbance over the whole visible light region but with no defect-related background absorption.",

keywords = "Photoelectrochemistry, Red TiO2, Water splitting, Doping",

author = "Xingxing Hong and Yuyang Kang and Chao Zhen and Xiangdong Kang and Li-Chang Yin and Irvine, {John T. S.} and Lianzhou Wang and Gang Liu and Hui-Ming Cheng",

note = "This work was supported by the Major Basic Research Program, Ministry of Science and Technology of China (2014CB239401), the National Natural Science Fundation of China (51422210, 21633009, 51629201 and 51521091), the Key Research Program of Frontier Sciences CAS (QYZDB-SSW-JSC039). Liu G thanks Newton Advanced Fellowship.",

year = "2018",

month = jun,

doi = "10.1007/s40843-018-9234-y",

language = "English",

volume = "61",

pages = "831--838",

journal = "Science China Materials",

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TY - JOUR

T1 - Maximizing the visible light photoelectrochemical activity of B/N-doped anatase TiO2 microspheres with exposed dominant {001} facets

AU - Hong, Xingxing

AU - Kang, Yuyang

AU - Zhen, Chao

AU - Kang, Xiangdong

AU - Yin, Li-Chang

AU - Irvine, John T. S.

AU - Wang, Lianzhou

AU - Liu, Gang

AU - Cheng, Hui-Ming

N1 - This work was supported by the Major Basic Research Program, Ministry of Science and Technology of China (2014CB239401), the National Natural Science Fundation of China (51422210, 21633009, 51629201 and 51521091), the Key Research Program of Frontier Sciences CAS (QYZDB-SSW-JSC039). Liu G thanks Newton Advanced Fellowship.

PY - 2018/6

Y1 - 2018/6

N2 - Anatase TiO2 microspheres with exposed dominant BBBBB001BBBBB facets were doped with interstitial boron to have a concentration gradient with the maximum concentration at the surface. They were then further doped with substitutional nitrogen by heating in an ammonia atmosphere at different temperatures from 440 to 560°C to give surface N concentrations ranging from 7.03 to 15.47 at%. The optical absorption, atomic and electronic structures and visible-light photoelectrochemical water oxidation activity of these materials were investigated. The maximum activity of the doped TiO2 was achieved at a nitrogen doping temperature of 520°C that gave a high absorbance over the whole visible light region but with no defect-related background absorption.

AB - Anatase TiO2 microspheres with exposed dominant BBBBB001BBBBB facets were doped with interstitial boron to have a concentration gradient with the maximum concentration at the surface. They were then further doped with substitutional nitrogen by heating in an ammonia atmosphere at different temperatures from 440 to 560°C to give surface N concentrations ranging from 7.03 to 15.47 at%. The optical absorption, atomic and electronic structures and visible-light photoelectrochemical water oxidation activity of these materials were investigated. The maximum activity of the doped TiO2 was achieved at a nitrogen doping temperature of 520°C that gave a high absorbance over the whole visible light region but with no defect-related background absorption.

KW - Photoelectrochemistry

KW - Red TiO2

KW - Water splitting

KW - Doping

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