High-efficiency carrier separation heterostructure improve the photocatalytic hydrogen production of sulfide

Longkai Pan; Hui Mei; Hongxia Liu; Haixi Pan; Xing Zhao; Zhipeng Jin; Gangqiang Zhu

doi:10.1016/j.jallcom.2019.153242

High-efficiency carrier separation heterostructure improve the photocatalytic hydrogen production of sulfide

Longkai Pan, Hui Mei, Hongxia Liu, Haixi Pan, Xing Zhao, Zhipeng Jin, Gangqiang Zhu

School of Materials Sience and Engineering

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

16 Scopus citations

Abstract

Loading co-catalyst is one of the essential ways to strengthen the performance of photocatalyst. Here, a novel non-precious metal co-catalyst Ti₂C/TiO₂ was successfully synthesized and Zn_0.5Cd_0.5S nanoparticle grown on the surface of Ti₂C/TiO₂ equably. In our work, 0.01 g photocatalysts were used in photocatalytic activity measurement. Zn_0.5Cd_0.5S/Ti₂C/TiO₂ composite (2 wt% Ti₂C/TiO₂) exhibited the highest photocatalytic activity and the H₂ yield is 32.57 mmol/g⁻¹/h⁻¹ under visible light irradiation. The photoelectrochemical results reveal that Ti₂C/TiO₂ could improve the separation of the photo-induced carriers in Zn_0.5Cd_0.5S/Ti₂C/TiO₂ heterojunction. And DFT calculations demonstrate that the Gibbs free energy of oxygen-terminated Ti₂C and TiO₂ are much lower than that of Zn_0.5Cd_0.5S. Therefore, the Ti₂C/TiO₂ has an active impact on improving the H₂ production of Zn_0.5Cd_0.5S. This study provides a new way to explore the application of inexpensive co-catalysts on a large scale.

Original language	English
Article number	153242
Journal	Journal of Alloys and Compounds
Volume	817
DOIs	https://doi.org/10.1016/j.jallcom.2019.153242
State	Published - 15 Mar 2020

Keywords

Co-catalyst
H production
Photocatalyst
TiC/TiO
ZnCdS

UN SDGs

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

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10.1016/j.jallcom.2019.153242

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@article{9bfa7f8257c748459dffe80256e09b83,

title = "High-efficiency carrier separation heterostructure improve the photocatalytic hydrogen production of sulfide",

abstract = "Loading co-catalyst is one of the essential ways to strengthen the performance of photocatalyst. Here, a novel non-precious metal co-catalyst Ti2C/TiO2 was successfully synthesized and Zn0.5Cd0.5S nanoparticle grown on the surface of Ti2C/TiO2 equably. In our work, 0.01 g photocatalysts were used in photocatalytic activity measurement. Zn0.5Cd0.5S/Ti2C/TiO2 composite (2 wt% Ti2C/TiO2) exhibited the highest photocatalytic activity and the H2 yield is 32.57 mmol/g−1/h−1 under visible light irradiation. The photoelectrochemical results reveal that Ti2C/TiO2 could improve the separation of the photo-induced carriers in Zn0.5Cd0.5S/Ti2C/TiO2 heterojunction. And DFT calculations demonstrate that the Gibbs free energy of oxygen-terminated Ti2C and TiO2 are much lower than that of Zn0.5Cd0.5S. Therefore, the Ti2C/TiO2 has an active impact on improving the H2 production of Zn0.5Cd0.5S. This study provides a new way to explore the application of inexpensive co-catalysts on a large scale.",

keywords = "Co-catalyst, H production, Photocatalyst, TiC/TiO, ZnCdS",

author = "Longkai Pan and Hui Mei and Hongxia Liu and Haixi Pan and Xing Zhao and Zhipeng Jin and Gangqiang Zhu",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2020",

month = mar,

day = "15",

doi = "10.1016/j.jallcom.2019.153242",

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T1 - High-efficiency carrier separation heterostructure improve the photocatalytic hydrogen production of sulfide

AU - Pan, Longkai

AU - Mei, Hui

AU - Liu, Hongxia

AU - Pan, Haixi

AU - Zhao, Xing

AU - Jin, Zhipeng

AU - Zhu, Gangqiang

PY - 2020/3/15

Y1 - 2020/3/15

N2 - Loading co-catalyst is one of the essential ways to strengthen the performance of photocatalyst. Here, a novel non-precious metal co-catalyst Ti2C/TiO2 was successfully synthesized and Zn0.5Cd0.5S nanoparticle grown on the surface of Ti2C/TiO2 equably. In our work, 0.01 g photocatalysts were used in photocatalytic activity measurement. Zn0.5Cd0.5S/Ti2C/TiO2 composite (2 wt% Ti2C/TiO2) exhibited the highest photocatalytic activity and the H2 yield is 32.57 mmol/g−1/h−1 under visible light irradiation. The photoelectrochemical results reveal that Ti2C/TiO2 could improve the separation of the photo-induced carriers in Zn0.5Cd0.5S/Ti2C/TiO2 heterojunction. And DFT calculations demonstrate that the Gibbs free energy of oxygen-terminated Ti2C and TiO2 are much lower than that of Zn0.5Cd0.5S. Therefore, the Ti2C/TiO2 has an active impact on improving the H2 production of Zn0.5Cd0.5S. This study provides a new way to explore the application of inexpensive co-catalysts on a large scale.

AB - Loading co-catalyst is one of the essential ways to strengthen the performance of photocatalyst. Here, a novel non-precious metal co-catalyst Ti2C/TiO2 was successfully synthesized and Zn0.5Cd0.5S nanoparticle grown on the surface of Ti2C/TiO2 equably. In our work, 0.01 g photocatalysts were used in photocatalytic activity measurement. Zn0.5Cd0.5S/Ti2C/TiO2 composite (2 wt% Ti2C/TiO2) exhibited the highest photocatalytic activity and the H2 yield is 32.57 mmol/g−1/h−1 under visible light irradiation. The photoelectrochemical results reveal that Ti2C/TiO2 could improve the separation of the photo-induced carriers in Zn0.5Cd0.5S/Ti2C/TiO2 heterojunction. And DFT calculations demonstrate that the Gibbs free energy of oxygen-terminated Ti2C and TiO2 are much lower than that of Zn0.5Cd0.5S. Therefore, the Ti2C/TiO2 has an active impact on improving the H2 production of Zn0.5Cd0.5S. This study provides a new way to explore the application of inexpensive co-catalysts on a large scale.

KW - Co-catalyst

KW - H production

KW - Photocatalyst

KW - TiC/TiO

KW - ZnCdS

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M3 - 文章

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JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

M1 - 153242

ER -

High-efficiency carrier separation heterostructure improve the photocatalytic hydrogen production of sulfide

Abstract

Keywords

UN SDGs

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