In Situ Conversion of Ti3C2 MXene to Sandwich Ti3C2/R-TiO2 for Promoted Photocatalytic Hydrogen Production

Ke Wei; Jiu Xiang Yang; Fang Yuan Bai; Yuan Sheng Shen; Kai Liu; Jing Liu; Li Hua Chen; Yu Li; Bao Lian Su

doi:10.1021/acsaem.3c00541

In Situ Conversion of Ti₃C₂ MXene to Sandwich Ti₃C₂/R-TiO₂ for Promoted Photocatalytic Hydrogen Production

Ke Wei, Jiu Xiang Yang, Fang Yuan Bai, Yuan Sheng Shen, Kai Liu, Jing Liu, Li Hua Chen, Yu Li, Bao Lian Su

University of Namur

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

Abstract

Ti₃C₂ MXene has been extensively studied in the field of photocatalytic hydrogen production since its discovery due to the large specific surface area and adjustable surface groups. However, the weak interaction at the interface of Ti₃C₂-based composites leads to a high energy barrier, which is not conducive to carrier transport. Herein, we propose the construction of a sandwich Ti₃C₂/R-TiO₂ composite photocatalyst by in situ growing rutile TiO₂ (R-TiO₂) nanoneedles in Ti₃C₂ MXene through NaOH oxidation treatment and the microwave hydrothermal method. This in situ synthesis can make Ti₃C₂ MXene and TiO₂ nanoneedles closely link together, which is conducive to carrier transport and material stability. The best Ti₃C₂/R-TiO₂ composite achieves an excellent hydrogen production rate of 1.62 mmol g^-1 h^-1, as endowed by the 2D nanosheet-constructed sandwich structure, an increased specific surface area, and improved charge carrier separation and transport.

Original language	English
Pages (from-to)	5456-5463
Number of pages	8
Journal	ACS Applied Energy Materials
Volume	6
Issue number	10
DOIs	https://doi.org/10.1021/acsaem.3c00541
Publication status	Published - 22 May 2023

Keywords

hydrogen production
in situ grown
MXene TiC
photocatalysis
rutile TiO

UN SDGs

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

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10.1021/acsaem.3c00541

Cite this

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title = "In Situ Conversion of Ti3C2 MXene to Sandwich Ti3C2/R-TiO2 for Promoted Photocatalytic Hydrogen Production",

abstract = "Ti3C2 MXene has been extensively studied in the field of photocatalytic hydrogen production since its discovery due to the large specific surface area and adjustable surface groups. However, the weak interaction at the interface of Ti3C2-based composites leads to a high energy barrier, which is not conducive to carrier transport. Herein, we propose the construction of a sandwich Ti3C2/R-TiO2 composite photocatalyst by in situ growing rutile TiO2 (R-TiO2) nanoneedles in Ti3C2 MXene through NaOH oxidation treatment and the microwave hydrothermal method. This in situ synthesis can make Ti3C2 MXene and TiO2 nanoneedles closely link together, which is conducive to carrier transport and material stability. The best Ti3C2/R-TiO2 composite achieves an excellent hydrogen production rate of 1.62 mmol g-1 h-1, as endowed by the 2D nanosheet-constructed sandwich structure, an increased specific surface area, and improved charge carrier separation and transport.",

keywords = "hydrogen production, in situ grown, MXene TiC, photocatalysis, rutile TiO",

author = "Ke Wei and Yang, {Jiu Xiang} and Bai, {Fang Yuan} and Shen, {Yuan Sheng} and Kai Liu and Jing Liu and Chen, {Li Hua} and Yu Li and Su, {Bao Lian}",

note = "Funding Information: This work was supported by the National Key R&D Program of China (2021YFE0115800), National Natural Science Foundation of China (22275142, 21805220, and 52103285), Natural Science Foundation of Hubei Province (2022CFB333), Program of Introducing Talents of Discipline to Universities-Plan 111 from the Ministry of Science and Technology, and the Ministry of Education of China (B20002). Publisher Copyright: {\textcopyright} 2023 American Chemical Society. All rights reserved.",

year = "2023",

month = may,

day = "22",

doi = "10.1021/acsaem.3c00541",

language = "English",

volume = "6",

pages = "5456--5463",

journal = "ACS Applied Energy Materials",

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publisher = "American Chemical Society",

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TY - JOUR

T1 - In Situ Conversion of Ti3C2 MXene to Sandwich Ti3C2/R-TiO2 for Promoted Photocatalytic Hydrogen Production

AU - Wei, Ke

AU - Yang, Jiu Xiang

AU - Bai, Fang Yuan

AU - Shen, Yuan Sheng

AU - Liu, Kai

AU - Liu, Jing

AU - Chen, Li Hua

AU - Li, Yu

AU - Su, Bao Lian

N1 - Funding Information: This work was supported by the National Key R&D Program of China (2021YFE0115800), National Natural Science Foundation of China (22275142, 21805220, and 52103285), Natural Science Foundation of Hubei Province (2022CFB333), Program of Introducing Talents of Discipline to Universities-Plan 111 from the Ministry of Science and Technology, and the Ministry of Education of China (B20002). Publisher Copyright: © 2023 American Chemical Society. All rights reserved.

PY - 2023/5/22

Y1 - 2023/5/22

N2 - Ti3C2 MXene has been extensively studied in the field of photocatalytic hydrogen production since its discovery due to the large specific surface area and adjustable surface groups. However, the weak interaction at the interface of Ti3C2-based composites leads to a high energy barrier, which is not conducive to carrier transport. Herein, we propose the construction of a sandwich Ti3C2/R-TiO2 composite photocatalyst by in situ growing rutile TiO2 (R-TiO2) nanoneedles in Ti3C2 MXene through NaOH oxidation treatment and the microwave hydrothermal method. This in situ synthesis can make Ti3C2 MXene and TiO2 nanoneedles closely link together, which is conducive to carrier transport and material stability. The best Ti3C2/R-TiO2 composite achieves an excellent hydrogen production rate of 1.62 mmol g-1 h-1, as endowed by the 2D nanosheet-constructed sandwich structure, an increased specific surface area, and improved charge carrier separation and transport.

AB - Ti3C2 MXene has been extensively studied in the field of photocatalytic hydrogen production since its discovery due to the large specific surface area and adjustable surface groups. However, the weak interaction at the interface of Ti3C2-based composites leads to a high energy barrier, which is not conducive to carrier transport. Herein, we propose the construction of a sandwich Ti3C2/R-TiO2 composite photocatalyst by in situ growing rutile TiO2 (R-TiO2) nanoneedles in Ti3C2 MXene through NaOH oxidation treatment and the microwave hydrothermal method. This in situ synthesis can make Ti3C2 MXene and TiO2 nanoneedles closely link together, which is conducive to carrier transport and material stability. The best Ti3C2/R-TiO2 composite achieves an excellent hydrogen production rate of 1.62 mmol g-1 h-1, as endowed by the 2D nanosheet-constructed sandwich structure, an increased specific surface area, and improved charge carrier separation and transport.

KW - hydrogen production

KW - in situ grown

KW - MXene TiC

KW - photocatalysis

KW - rutile TiO

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ER -

In Situ Conversion of Ti₃C₂ MXene to Sandwich Ti₃C₂/R-TiO₂ for Promoted Photocatalytic Hydrogen Production

Abstract

Keywords

UN SDGs

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In Situ Conversion of Ti3C2 MXene to Sandwich Ti3C2/R-TiO2 for Promoted Photocatalytic Hydrogen Production

Abstract

Keywords

UN SDGs

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Physical Chemistry and characterization(PC2)

Cite this

In Situ Conversion of Ti₃C₂ MXene to Sandwich Ti₃C₂/R-TiO₂ for Promoted Photocatalytic Hydrogen Production