Enhanced photocatalytic hydrogen production by the formation of TiNT-BN bonds

Yanan Zhao; Shiqi Zhao; Hailian Huang; Zijie Liu; Xiaorong Cheng; Graham Dawson

doi:10.1016/j.apsusc.2023.157005

Enhanced photocatalytic hydrogen production by the formation of TiNT-BN bonds

Yanan Zhao, Shiqi Zhao, Hailian Huang, Zijie Liu, Xiaorong Cheng, Graham Dawson^*

^*Corresponding author for this work

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

8 Citations (Scopus)

Abstract

In this work we have prepared composites between TiNT and BN by a novel mixed hydrothermal/solvothermal method at different temperatures and compared this to physical mixing. TiNT have a high surface area which can act as a support, or scaffold, for more active species however they have limited photcatalytic activity themselves. Based on these concerns, and in an attempt to improve the photocatalytic activity of TiNT by composite doping, we prepared several composites at different temperatures. The structure and optical properties of the composites were examined by TEM, XPS and UV–vis, while the charge carrier lifetime was investigated by PL spectroscopy. Finally, the photocatalytic hydrogen production was measured. The composite prepared at 140 °C showed evidence of Ti-O-B bond formation and enhanced photocatalytic hydrogen production with an efficiency of 1600 µmolg^-1hr^-1. Based on these results we have proposed a band diagram to explain the enhanced activity and believe this method offers an approach for further photocatalyst modification.

Original language	English
Article number	157005
Journal	Applied Surface Science
Volume	623
DOIs	https://doi.org/10.1016/j.apsusc.2023.157005
Publication status	Published - 30 Jun 2023

Keywords

Boron nitride
Nanomaterials
Photocatalysis
Titanate nanotubes

UN SDGs

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

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10.1016/j.apsusc.2023.157005

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title = "Enhanced photocatalytic hydrogen production by the formation of TiNT-BN bonds",

abstract = "In this work we have prepared composites between TiNT and BN by a novel mixed hydrothermal/solvothermal method at different temperatures and compared this to physical mixing. TiNT have a high surface area which can act as a support, or scaffold, for more active species however they have limited photcatalytic activity themselves. Based on these concerns, and in an attempt to improve the photocatalytic activity of TiNT by composite doping, we prepared several composites at different temperatures. The structure and optical properties of the composites were examined by TEM, XPS and UV–vis, while the charge carrier lifetime was investigated by PL spectroscopy. Finally, the photocatalytic hydrogen production was measured. The composite prepared at 140 °C showed evidence of Ti-O-B bond formation and enhanced photocatalytic hydrogen production with an efficiency of 1600 µmolg-1hr-1. Based on these results we have proposed a band diagram to explain the enhanced activity and believe this method offers an approach for further photocatalyst modification.",

keywords = "Boron nitride, Nanomaterials, Photocatalysis, Titanate nanotubes",

author = "Yanan Zhao and Shiqi Zhao and Hailian Huang and Zijie Liu and Xiaorong Cheng and Graham Dawson",

note = "Funding Information: This work was supported by Suzhou Institute of Industrial Technology Research Fund (Grant No. SGYKJ201705 and 2017kyqd010), Xi'an Jiaotong Liverpool University Research Development Fund. National Natural Science Foundation of China (Grant No.21650110446). Proof reading was done by Mr. Parag Dandgey. Publisher Copyright: {\textcopyright} 2023 Elsevier B.V.",

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doi = "10.1016/j.apsusc.2023.157005",

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T1 - Enhanced photocatalytic hydrogen production by the formation of TiNT-BN bonds

AU - Zhao, Yanan

AU - Zhao, Shiqi

AU - Huang, Hailian

AU - Liu, Zijie

AU - Cheng, Xiaorong

AU - Dawson, Graham

N1 - Funding Information: This work was supported by Suzhou Institute of Industrial Technology Research Fund (Grant No. SGYKJ201705 and 2017kyqd010), Xi'an Jiaotong Liverpool University Research Development Fund. National Natural Science Foundation of China (Grant No.21650110446). Proof reading was done by Mr. Parag Dandgey. Publisher Copyright: © 2023 Elsevier B.V.

PY - 2023/6/30

Y1 - 2023/6/30

N2 - In this work we have prepared composites between TiNT and BN by a novel mixed hydrothermal/solvothermal method at different temperatures and compared this to physical mixing. TiNT have a high surface area which can act as a support, or scaffold, for more active species however they have limited photcatalytic activity themselves. Based on these concerns, and in an attempt to improve the photocatalytic activity of TiNT by composite doping, we prepared several composites at different temperatures. The structure and optical properties of the composites were examined by TEM, XPS and UV–vis, while the charge carrier lifetime was investigated by PL spectroscopy. Finally, the photocatalytic hydrogen production was measured. The composite prepared at 140 °C showed evidence of Ti-O-B bond formation and enhanced photocatalytic hydrogen production with an efficiency of 1600 µmolg-1hr-1. Based on these results we have proposed a band diagram to explain the enhanced activity and believe this method offers an approach for further photocatalyst modification.

AB - In this work we have prepared composites between TiNT and BN by a novel mixed hydrothermal/solvothermal method at different temperatures and compared this to physical mixing. TiNT have a high surface area which can act as a support, or scaffold, for more active species however they have limited photcatalytic activity themselves. Based on these concerns, and in an attempt to improve the photocatalytic activity of TiNT by composite doping, we prepared several composites at different temperatures. The structure and optical properties of the composites were examined by TEM, XPS and UV–vis, while the charge carrier lifetime was investigated by PL spectroscopy. Finally, the photocatalytic hydrogen production was measured. The composite prepared at 140 °C showed evidence of Ti-O-B bond formation and enhanced photocatalytic hydrogen production with an efficiency of 1600 µmolg-1hr-1. Based on these results we have proposed a band diagram to explain the enhanced activity and believe this method offers an approach for further photocatalyst modification.

KW - Boron nitride

KW - Nanomaterials

KW - Photocatalysis

KW - Titanate nanotubes

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DO - 10.1016/j.apsusc.2023.157005

M3 - Article

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SN - 0169-4332

VL - 623

JO - Applied Surface Science

JF - Applied Surface Science

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ER -

Enhanced photocatalytic hydrogen production by the formation of TiNT-BN bonds

Abstract

Keywords

UN SDGs

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