Construction of an artificial inorganic leaf CdS-BiVO4 Z-scheme and its enhancement activities for pollutant degradation and hydrogen evolution

Ruijie Yang; Rongshu Zhu; Yingying Fan; Longjun Hu; Baiyang Chen

doi:10.1039/c9cy00475k

Construction of an artificial inorganic leaf CdS-BiVO₄ Z-scheme and its enhancement activities for pollutant degradation and hydrogen evolution

Ruijie Yang
, Rongshu Zhu^*
, Yingying Fan
, Longjun Hu
, Baiyang Chen

^*Corresponding author for this work

School of Ecology and Environment

Harbin Institute of Technology
Harbin Institute of Technology Shenzhen

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

30 Scopus citations

Abstract

The natural photosynthesis of plants is closely related to leaf structures, therefore, the preparation of photocatalysts with leaf-like structures is of great significance to improve the activity of artificial photosynthetic systems. Using the leaves of a Chongyang wood seedling as the biological template (BT), artificial inorganic leaf CdS-BiVO₄ was constructed by the "biological template"-"dipping-calcination"-"successive ionic layer adsorption and reaction" (BT-DC-SILAR) method. The fine hierarchical leaf-like structures of the artificial inorganic leaf were confirmed by FE-SEM and TEM observations. In the process of synthesizing the artificial inorganic leaf, the doping of C, N, and Si elements (coming from a natural leaf) was determined by XPS and FTIR analyses. The enhanced optical properties of the artificial inorganic leaf were proved by UV-vis DRS and PL analyses. It was found that the artificial inorganic leaf demonstrated superior photocatalytic activity in both photocatalytic pollutant degradation and H₂ evolution. After 2 h of visible light irradiation, the photocatalytic decomposition efficiency of RhB for the artificial inorganic leaf (92%) is 2.1 times higher than that of no template BiVO₄ (45%), and the photocatalytic H₂ evolution for the artificial inorganic leaf (9250 μmol g^-1_CdS h^-1) is 13 times higher than that of pure CdS (706 μmol g^-1_CdS h^-1). Driven by solar light, the artificial inorganic leaf also possesses a strong artificial photosynthetic activity. The enhanced photocatalytic performance is ascribed to the combined action of the unique structure, the C, N, and Si elemental doping and the formation of the Z-scheme. Based on this research, a new method, BT-DC-SILAR, for the construction of a micro-nano-Z-scheme photocatalytic system was proposed, which enables the simultaneous control of structure, elemental doping and Z-scheme photocatalytic systems.

Original language	English
Pages (from-to)	2426-2437
Number of pages	12
Journal	Catalysis Science and Technology
Volume	9
Issue number	10
DOIs	https://doi.org/10.1039/c9cy00475k
State	Published - 2019

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title = "Construction of an artificial inorganic leaf CdS-BiVO4 Z-scheme and its enhancement activities for pollutant degradation and hydrogen evolution",

abstract = "The natural photosynthesis of plants is closely related to leaf structures, therefore, the preparation of photocatalysts with leaf-like structures is of great significance to improve the activity of artificial photosynthetic systems. Using the leaves of a Chongyang wood seedling as the biological template (BT), artificial inorganic leaf CdS-BiVO4 was constructed by the {"}biological template{"}-{"}dipping-calcination{"}-{"}successive ionic layer adsorption and reaction{"} (BT-DC-SILAR) method. The fine hierarchical leaf-like structures of the artificial inorganic leaf were confirmed by FE-SEM and TEM observations. In the process of synthesizing the artificial inorganic leaf, the doping of C, N, and Si elements (coming from a natural leaf) was determined by XPS and FTIR analyses. The enhanced optical properties of the artificial inorganic leaf were proved by UV-vis DRS and PL analyses. It was found that the artificial inorganic leaf demonstrated superior photocatalytic activity in both photocatalytic pollutant degradation and H2 evolution. After 2 h of visible light irradiation, the photocatalytic decomposition efficiency of RhB for the artificial inorganic leaf (92\%) is 2.1 times higher than that of no template BiVO4 (45\%), and the photocatalytic H2 evolution for the artificial inorganic leaf (9250 μmol g-1CdS h-1) is 13 times higher than that of pure CdS (706 μmol g-1CdS h-1). Driven by solar light, the artificial inorganic leaf also possesses a strong artificial photosynthetic activity. The enhanced photocatalytic performance is ascribed to the combined action of the unique structure, the C, N, and Si elemental doping and the formation of the Z-scheme. Based on this research, a new method, BT-DC-SILAR, for the construction of a micro-nano-Z-scheme photocatalytic system was proposed, which enables the simultaneous control of structure, elemental doping and Z-scheme photocatalytic systems.",

author = "Ruijie Yang and Rongshu Zhu and Yingying Fan and Longjun Hu and Baiyang Chen",

note = "Publisher Copyright: {\textcopyright} 2019 The Royal Society of Chemistry.",

year = "2019",

doi = "10.1039/c9cy00475k",

language = "英语",

volume = "9",

pages = "2426--2437",

journal = "Catalysis Science and Technology",

issn = "2044-4753",

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TY - JOUR

T1 - Construction of an artificial inorganic leaf CdS-BiVO4 Z-scheme and its enhancement activities for pollutant degradation and hydrogen evolution

AU - Yang, Ruijie

AU - Zhu, Rongshu

AU - Fan, Yingying

AU - Hu, Longjun

AU - Chen, Baiyang

PY - 2019

Y1 - 2019

N2 - The natural photosynthesis of plants is closely related to leaf structures, therefore, the preparation of photocatalysts with leaf-like structures is of great significance to improve the activity of artificial photosynthetic systems. Using the leaves of a Chongyang wood seedling as the biological template (BT), artificial inorganic leaf CdS-BiVO4 was constructed by the "biological template"-"dipping-calcination"-"successive ionic layer adsorption and reaction" (BT-DC-SILAR) method. The fine hierarchical leaf-like structures of the artificial inorganic leaf were confirmed by FE-SEM and TEM observations. In the process of synthesizing the artificial inorganic leaf, the doping of C, N, and Si elements (coming from a natural leaf) was determined by XPS and FTIR analyses. The enhanced optical properties of the artificial inorganic leaf were proved by UV-vis DRS and PL analyses. It was found that the artificial inorganic leaf demonstrated superior photocatalytic activity in both photocatalytic pollutant degradation and H2 evolution. After 2 h of visible light irradiation, the photocatalytic decomposition efficiency of RhB for the artificial inorganic leaf (92%) is 2.1 times higher than that of no template BiVO4 (45%), and the photocatalytic H2 evolution for the artificial inorganic leaf (9250 μmol g-1CdS h-1) is 13 times higher than that of pure CdS (706 μmol g-1CdS h-1). Driven by solar light, the artificial inorganic leaf also possesses a strong artificial photosynthetic activity. The enhanced photocatalytic performance is ascribed to the combined action of the unique structure, the C, N, and Si elemental doping and the formation of the Z-scheme. Based on this research, a new method, BT-DC-SILAR, for the construction of a micro-nano-Z-scheme photocatalytic system was proposed, which enables the simultaneous control of structure, elemental doping and Z-scheme photocatalytic systems.

AB - The natural photosynthesis of plants is closely related to leaf structures, therefore, the preparation of photocatalysts with leaf-like structures is of great significance to improve the activity of artificial photosynthetic systems. Using the leaves of a Chongyang wood seedling as the biological template (BT), artificial inorganic leaf CdS-BiVO4 was constructed by the "biological template"-"dipping-calcination"-"successive ionic layer adsorption and reaction" (BT-DC-SILAR) method. The fine hierarchical leaf-like structures of the artificial inorganic leaf were confirmed by FE-SEM and TEM observations. In the process of synthesizing the artificial inorganic leaf, the doping of C, N, and Si elements (coming from a natural leaf) was determined by XPS and FTIR analyses. The enhanced optical properties of the artificial inorganic leaf were proved by UV-vis DRS and PL analyses. It was found that the artificial inorganic leaf demonstrated superior photocatalytic activity in both photocatalytic pollutant degradation and H2 evolution. After 2 h of visible light irradiation, the photocatalytic decomposition efficiency of RhB for the artificial inorganic leaf (92%) is 2.1 times higher than that of no template BiVO4 (45%), and the photocatalytic H2 evolution for the artificial inorganic leaf (9250 μmol g-1CdS h-1) is 13 times higher than that of pure CdS (706 μmol g-1CdS h-1). Driven by solar light, the artificial inorganic leaf also possesses a strong artificial photosynthetic activity. The enhanced photocatalytic performance is ascribed to the combined action of the unique structure, the C, N, and Si elemental doping and the formation of the Z-scheme. Based on this research, a new method, BT-DC-SILAR, for the construction of a micro-nano-Z-scheme photocatalytic system was proposed, which enables the simultaneous control of structure, elemental doping and Z-scheme photocatalytic systems.

UR - https://www.scopus.com/pages/publications/85066124955

U2 - 10.1039/c9cy00475k

DO - 10.1039/c9cy00475k

M3 - 文章

AN - SCOPUS:85066124955

SN - 2044-4753

VL - 9

SP - 2426

EP - 2437

JO - Catalysis Science and Technology

JF - Catalysis Science and Technology

IS - 10

ER -

Construction of an artificial inorganic leaf CdS-BiVO₄ Z-scheme and its enhancement activities for pollutant degradation and hydrogen evolution

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