MXene quantum dot-sensitized heterostructures for broad solar spectrum CO2 reduction

Cheng-May Fung; Boon-Junn Ng; Yi-Hao Chew; Chen-Chen Er; Jingxiang Low; Xuecheng Guo; Xin Ying Kong; Lling Lling Tan; Hiroshi Onishi; Abdul Rahman Mohamed; Siang Piao Chai

doi:10.1016/j.xcrp.2024.102296

MXene quantum dot-sensitized heterostructures for broad solar spectrum CO₂ reduction

Cheng-May Fung
, Boon-Junn Ng
, Yi-Hao Chew
, Chen-Chen Er
, Jingxiang Low
, Xuecheng Guo
, Xin Ying Kong
, Lling Lling Tan
, Hiroshi Onishi
, Abdul Rahman Mohamed
, Siang Piao Chai

Malaysia School of Engineering

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

1 Citation (Scopus)

Abstract

Tapping into the use of near-infrared (NIR) light is important in order to improve the utilization of the solar spectrum. Chlorine-functionalized titanium carbide MXene (Ti₃C₂Cl₂ MX) quantum dots with up-conversion luminescence offer augmented absorption in the UV-vis-NIR spectral range and possess the capability to produce high-energy radiation via the conversion of low-energy incident light. Here, we demonstrate that the integration of Ti₃C₂Cl₂ MXQDs onto a homo-heterostructure comprising oxygen-defective BiVO₄ nanosheets (BiVO₄-Ov) and red/black phosphorus (RP/BP), namely MX@BiVO₄-Ov@RP/BP, exhibited vis-NIR-driven CO₂ photoreduction. Under visible (>400 nm) and NIR (>700 nm) light irradiation, the 1MX@BiVO₄-Ov@RP/BP system achieved high CH₄ yields of 43.71 and 6.71 μmol g⁻¹, respectively, after 6 h of reactions. The synergistic effect between Ti₃C₂Cl₂ MXQDs and BiVO₄-Ov@RP/BP promote photogeneration and migration of charge carriers. This study presents an effective strategy for enhancing the application of photocatalysts in the NIR region, thereby maximizing the utilization of solar energy.

Original language	English
Article number	102296
Number of pages	19
Journal	Cell Reports Physical Science
Volume	5
Issue number	11
DOIs	https://doi.org/10.1016/j.xcrp.2024.102296
Publication status	Published - 20 Nov 2024

Keywords

BiVO
broad solar spectrum
MXene
NIR responsive
photocatalytic CO2 reduction
quantum dots
red and black phosphorus
Z-scheme

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10.1016/j.xcrp.2024.102296Licence: CC BY

Cite this

@article{4ef6f7e417a046a485aa734a1578c52a,

title = "MXene quantum dot-sensitized heterostructures for broad solar spectrum CO2 reduction",

abstract = "Tapping into the use of near-infrared (NIR) light is important in order to improve the utilization of the solar spectrum. Chlorine-functionalized titanium carbide MXene (Ti3C2Cl2 MX) quantum dots with up-conversion luminescence offer augmented absorption in the UV-vis-NIR spectral range and possess the capability to produce high-energy radiation via the conversion of low-energy incident light. Here, we demonstrate that the integration of Ti3C2Cl2 MXQDs onto a homo-heterostructure comprising oxygen-defective BiVO4 nanosheets (BiVO4-Ov) and red/black phosphorus (RP/BP), namely MX@BiVO4-Ov@RP/BP, exhibited vis-NIR-driven CO2 photoreduction. Under visible (>400 nm) and NIR (>700 nm) light irradiation, the 1MX@BiVO4-Ov@RP/BP system achieved high CH4 yields of 43.71 and 6.71 μmol g−1, respectively, after 6 h of reactions. The synergistic effect between Ti3C2Cl2 MXQDs and BiVO4-Ov@RP/BP promote photogeneration and migration of charge carriers. This study presents an effective strategy for enhancing the application of photocatalysts in the NIR region, thereby maximizing the utilization of solar energy.",

keywords = "BiVO, broad solar spectrum, MXene, NIR responsive, photocatalytic CO2 reduction, quantum dots, red and black phosphorus, Z-scheme",

author = "Cheng-May Fung and Boon-Junn Ng and Yi-Hao Chew and Chen-Chen Er and Jingxiang Low and Xuecheng Guo and Kong, \{Xin Ying\} and Tan, \{Lling Lling\} and Hiroshi Onishi and Mohamed, \{Abdul Rahman\} and Chai, \{Siang Piao\}",

note = "Publisher Copyright: {\textcopyright} 2024 The Author(s)",

year = "2024",

month = nov,

day = "20",

doi = "10.1016/j.xcrp.2024.102296",

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T1 - MXene quantum dot-sensitized heterostructures for broad solar spectrum CO2 reduction

AU - Fung, Cheng-May

AU - Ng, Boon-Junn

AU - Chew, Yi-Hao

AU - Er, Chen-Chen

AU - Low, Jingxiang

AU - Guo, Xuecheng

AU - Kong, Xin Ying

AU - Tan, Lling Lling

AU - Onishi, Hiroshi

AU - Mohamed, Abdul Rahman

AU - Chai, Siang Piao

PY - 2024/11/20

Y1 - 2024/11/20

N2 - Tapping into the use of near-infrared (NIR) light is important in order to improve the utilization of the solar spectrum. Chlorine-functionalized titanium carbide MXene (Ti3C2Cl2 MX) quantum dots with up-conversion luminescence offer augmented absorption in the UV-vis-NIR spectral range and possess the capability to produce high-energy radiation via the conversion of low-energy incident light. Here, we demonstrate that the integration of Ti3C2Cl2 MXQDs onto a homo-heterostructure comprising oxygen-defective BiVO4 nanosheets (BiVO4-Ov) and red/black phosphorus (RP/BP), namely MX@BiVO4-Ov@RP/BP, exhibited vis-NIR-driven CO2 photoreduction. Under visible (>400 nm) and NIR (>700 nm) light irradiation, the 1MX@BiVO4-Ov@RP/BP system achieved high CH4 yields of 43.71 and 6.71 μmol g−1, respectively, after 6 h of reactions. The synergistic effect between Ti3C2Cl2 MXQDs and BiVO4-Ov@RP/BP promote photogeneration and migration of charge carriers. This study presents an effective strategy for enhancing the application of photocatalysts in the NIR region, thereby maximizing the utilization of solar energy.

AB - Tapping into the use of near-infrared (NIR) light is important in order to improve the utilization of the solar spectrum. Chlorine-functionalized titanium carbide MXene (Ti3C2Cl2 MX) quantum dots with up-conversion luminescence offer augmented absorption in the UV-vis-NIR spectral range and possess the capability to produce high-energy radiation via the conversion of low-energy incident light. Here, we demonstrate that the integration of Ti3C2Cl2 MXQDs onto a homo-heterostructure comprising oxygen-defective BiVO4 nanosheets (BiVO4-Ov) and red/black phosphorus (RP/BP), namely MX@BiVO4-Ov@RP/BP, exhibited vis-NIR-driven CO2 photoreduction. Under visible (>400 nm) and NIR (>700 nm) light irradiation, the 1MX@BiVO4-Ov@RP/BP system achieved high CH4 yields of 43.71 and 6.71 μmol g−1, respectively, after 6 h of reactions. The synergistic effect between Ti3C2Cl2 MXQDs and BiVO4-Ov@RP/BP promote photogeneration and migration of charge carriers. This study presents an effective strategy for enhancing the application of photocatalysts in the NIR region, thereby maximizing the utilization of solar energy.

KW - BiVO

KW - broad solar spectrum

KW - MXene

KW - NIR responsive

KW - photocatalytic CO2 reduction

KW - quantum dots

KW - red and black phosphorus

KW - Z-scheme

UR - https://www.scopus.com/pages/publications/85209402141

U2 - 10.1016/j.xcrp.2024.102296

DO - 10.1016/j.xcrp.2024.102296

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