Realizing improved CO2 photoreduction in Z-scheme Bi4O5Br2/AgBr heterostructure

Xiaoli Jin; Jian Cao; Huiqing Wang; Chade Lv; Haiquan Xie; Fengyun Su; Xin Li; Ruixue Sun; Shukui Shi; Mengfei Dang; Liqun Ye

doi:10.1016/j.apsusc.2022.153758

Realizing improved CO₂ photoreduction in Z-scheme Bi₄O₅Br₂/AgBr heterostructure

Xiaoli Jin
, Jian Cao
, Huiqing Wang
, Chade Lv
, Haiquan Xie^*
, Fengyun Su
, Xin Li
, Ruixue Sun
, Shukui Shi
, Mengfei Dang
, Liqun Ye

^*Corresponding author for this work

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

43 Scopus citations

Abstract

Architecting Z-scheme heterojunction can restrain the recombination of photoinduced carriers to improve the photocatalytic performance. However, it still lacks high-efficiency catalysts for sustainable photoreduction of CO₂. Herein, an Ag-bridged Z-scheme Bi₄O₅Br₂/AgBr heterostructure is successfully developed, which enables room-temperature CO₂ reduction driven by solar energy. In this catalyst, the Ag mediator acts as a bridge to shuttle electrons between Bi₄O₅Br₂ and AgBr, separating the electron-hole pairs efficiently and maintaining the original strong reduction reaction. As a result, Z-scheme Bi₄O₅Br₂/AgBr heterostructures show obviously promoted performance of photocatalytic CO₂ reduction in contrast with pristine Bi₄O₅Br₂, delivering a high CO₂ conversion activity of 6.6 and 1.8 μmol g^-1h⁻¹ for CO and CH₄ products, respectively. This study reports an effective reference of Z-scheme Bi₄O₅Br₂/AgBr heterojunction for satisfactory photocatalytic solar energy conversion and synthesis of high value-added products from CO₂.

Original language	English
Article number	153758
Journal	Applied Surface Science
Volume	598
DOIs	https://doi.org/10.1016/j.apsusc.2022.153758
State	Published - 1 Oct 2022
Externally published	Yes

Keywords

CO reduction
Carrier separation
Photocatalysis
Solar energy
Z-scheme heterojunction

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10.1016/j.apsusc.2022.153758

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title = "Realizing improved CO2 photoreduction in Z-scheme Bi4O5Br2/AgBr heterostructure",

abstract = "Architecting Z-scheme heterojunction can restrain the recombination of photoinduced carriers to improve the photocatalytic performance. However, it still lacks high-efficiency catalysts for sustainable photoreduction of CO2. Herein, an Ag-bridged Z-scheme Bi4O5Br2/AgBr heterostructure is successfully developed, which enables room-temperature CO2 reduction driven by solar energy. In this catalyst, the Ag mediator acts as a bridge to shuttle electrons between Bi4O5Br2 and AgBr, separating the electron-hole pairs efficiently and maintaining the original strong reduction reaction. As a result, Z-scheme Bi4O5Br2/AgBr heterostructures show obviously promoted performance of photocatalytic CO2 reduction in contrast with pristine Bi4O5Br2, delivering a high CO2 conversion activity of 6.6 and 1.8 μmol g-1h−1 for CO and CH4 products, respectively. This study reports an effective reference of Z-scheme Bi4O5Br2/AgBr heterojunction for satisfactory photocatalytic solar energy conversion and synthesis of high value-added products from CO2.",

keywords = "CO reduction, Carrier separation, Photocatalysis, Solar energy, Z-scheme heterojunction",

author = "Xiaoli Jin and Jian Cao and Huiqing Wang and Chade Lv and Haiquan Xie and Fengyun Su and Xin Li and Ruixue Sun and Shukui Shi and Mengfei Dang and Liqun Ye",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2022",

month = oct,

day = "1",

doi = "10.1016/j.apsusc.2022.153758",

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volume = "598",

journal = "Applied Surface Science",

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TY - JOUR

T1 - Realizing improved CO2 photoreduction in Z-scheme Bi4O5Br2/AgBr heterostructure

AU - Jin, Xiaoli

AU - Cao, Jian

AU - Wang, Huiqing

AU - Lv, Chade

AU - Xie, Haiquan

AU - Su, Fengyun

AU - Li, Xin

AU - Sun, Ruixue

AU - Shi, Shukui

AU - Dang, Mengfei

AU - Ye, Liqun

PY - 2022/10/1

Y1 - 2022/10/1

N2 - Architecting Z-scheme heterojunction can restrain the recombination of photoinduced carriers to improve the photocatalytic performance. However, it still lacks high-efficiency catalysts for sustainable photoreduction of CO2. Herein, an Ag-bridged Z-scheme Bi4O5Br2/AgBr heterostructure is successfully developed, which enables room-temperature CO2 reduction driven by solar energy. In this catalyst, the Ag mediator acts as a bridge to shuttle electrons between Bi4O5Br2 and AgBr, separating the electron-hole pairs efficiently and maintaining the original strong reduction reaction. As a result, Z-scheme Bi4O5Br2/AgBr heterostructures show obviously promoted performance of photocatalytic CO2 reduction in contrast with pristine Bi4O5Br2, delivering a high CO2 conversion activity of 6.6 and 1.8 μmol g-1h−1 for CO and CH4 products, respectively. This study reports an effective reference of Z-scheme Bi4O5Br2/AgBr heterojunction for satisfactory photocatalytic solar energy conversion and synthesis of high value-added products from CO2.

AB - Architecting Z-scheme heterojunction can restrain the recombination of photoinduced carriers to improve the photocatalytic performance. However, it still lacks high-efficiency catalysts for sustainable photoreduction of CO2. Herein, an Ag-bridged Z-scheme Bi4O5Br2/AgBr heterostructure is successfully developed, which enables room-temperature CO2 reduction driven by solar energy. In this catalyst, the Ag mediator acts as a bridge to shuttle electrons between Bi4O5Br2 and AgBr, separating the electron-hole pairs efficiently and maintaining the original strong reduction reaction. As a result, Z-scheme Bi4O5Br2/AgBr heterostructures show obviously promoted performance of photocatalytic CO2 reduction in contrast with pristine Bi4O5Br2, delivering a high CO2 conversion activity of 6.6 and 1.8 μmol g-1h−1 for CO and CH4 products, respectively. This study reports an effective reference of Z-scheme Bi4O5Br2/AgBr heterojunction for satisfactory photocatalytic solar energy conversion and synthesis of high value-added products from CO2.

KW - CO reduction

KW - Carrier separation

KW - Photocatalysis

KW - Solar energy

KW - Z-scheme heterojunction

UR - https://www.scopus.com/pages/publications/85131453663

U2 - 10.1016/j.apsusc.2022.153758

DO - 10.1016/j.apsusc.2022.153758

M3 - 文章

AN - SCOPUS:85131453663

SN - 0169-4332

VL - 598

JO - Applied Surface Science

JF - Applied Surface Science

M1 - 153758

ER -

Realizing improved CO₂ photoreduction in Z-scheme Bi₄O₅Br₂/AgBr heterostructure

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Keywords

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