Peat-derived nitrogen-doped porous carbons as photothermal-assisted visible-light photocatalysts for water splitting

BAI Jin-peng; XIAO Nan; SONG Xue-dan; XIAO Jian; QIU Jie-shan

doi:10.1016/S1872-5805(22)60593-6

Volume 37 Issue 3

Jun. 2022

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Article Navigation > New Carbon Mater. > 2022 > 37(3): 585-594

BAI Jin-peng, XIAO Nan, SONG Xue-dan, XIAO Jian, QIU Jie-shan. Peat-derived nitrogen-doped porous carbons as photothermal-assisted visible-light photocatalysts for water splitting. New Carbon Mater., 2022, 37(3): 585-594. doi: 10.1016/S1872-5805(22)60593-6

Citation:

BAI Jin-peng, XIAO Nan, SONG Xue-dan, XIAO Jian, QIU Jie-shan. Peat-derived nitrogen-doped porous carbons as photothermal-assisted visible-light photocatalysts for water splitting. New Carbon Mater., 2022, 37(3): 585-594. doi: 10.1016/S1872-5805(22)60593-6

Citation:

BAI Jin-peng, XIAO Nan, SONG Xue-dan, XIAO Jian, QIU Jie-shan. Peat-derived nitrogen-doped porous carbons as photothermal-assisted visible-light photocatalysts for water splitting. New Carbon Mater., 2022, 37(3): 585-594. doi: 10.1016/S1872-5805(22)60593-6

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Peat-derived nitrogen-doped porous carbons as photothermal-assisted visible-light photocatalysts for water splitting

doi: 10.1016/S1872-5805(22)60593-6

BAI Jin-peng^1
,,
XIAO Nan^{1
,
,},
SONG Xue-dan¹,
XIAO Jian¹,
QIU Jie-shan^{1, 2
,
,}

1.
State Key Lab of Fine Chemicals, Liaoning Key Lab for Energy Materials and Chemical Engineering, PSU-DUT Joint Center for Energy Research, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
2.
College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China

Funds: National Natural Science Foundation of China (U2003216); Fundamental Research Funds for the Central Universities of China (DUT20LAB131)

More Information

Author Bio:
白金鹏，博士研究生. E-mail：zizabai@mail.dlut.edu.cn
Corresponding author: XIAO Nan, Associate Professor. E-mail: nxiao@dlut.edu.cn; QIU Jie-shan, Professor. E-mail: qiujs@mail.buct.edu.cn
Received Date: 2021-09-16
Rev Recd Date: 2021-12-01

Available Online: 2021-12-22

Publish Date: 2022-06-01

Abstract

Abstract

Photocatalytic H₂ evolution is considered one of the most important processes for H₂ production. Carbon materials are potential candidates for large-scale and cost-effective photocatalytic water splitting, yet their activity needs to be further improved. We report the synthesis of nitrogen-doped porous carbons using peat moss as a precursor and urea as a nitrogen source. The properties of carbons as photothermal-assisted visible-light photocatalysts were investigated. Due to the photothermal effect, the system temperature increased quickly to 55 °C in 15 min under visible light irradiation, which subsequently helps increase the photocatalytic activity by about 25%. It has been found that the crystallinity and nitrogen content of the carbon materials can be changed by changing the carbonization temperature, and these have an impact on their photocatalytic activity. A peat-derived carbon carbonized at 800 °C, with a N content of 4.88 at.% and an appropriate crystallinity has an outstanding photocatalytic activity with a high H₂ evolution rate of 75.6 μmol H₂ g⁻¹ h⁻¹ under visible-light irradiation.
- Visible-light,
- Photothermal-assisted,
- Carbon based photocatalyst

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References(38)

References

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