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https://hdl.handle.net/2440/123996
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Type: | Journal article |
Title: | Cobalt@nitrogen-doped bamboo-structured carbon nanotube to boost photocatalytic hydrogen evolution on carbon nitride |
Author: | Liu, Q. Zeng, C. Xie, Z. Ai, L. Liu, Y. Zhou, Q. Jiang, J. Sun, H. Wang, S. |
Citation: | Applied Catalysis B: Environmental, 2019; 254:443-451 |
Publisher: | Elsevier |
Issue Date: | 2019 |
ISSN: | 0926-3373 1873-3883 |
Statement of Responsibility: | Qiuxia Liu, Chunmei Zeng, Zhihui Xie, Lunhong Ai, Yaoyao Liu, Qin Zhou, Jing Jiang, Hongqi Sun, Shaobin Wang |
Abstract: | Rational design of high-efficiency and low-cost photo catalyst/cocatalyst systems is an effective strategy to realize high-performance photocatalytic hydrogen production from water, but remains still a great challenge. Herein, we report a new coatalyst based on ultra long bamboo-structured nitrogen-doped carbon nanotube (CNCNT) encapsulated with cobalt nanoparticles to couple with g-C₃N₄ photo catalyst in realizing a greatly enhanced photocatalytic activity toward hydrogen evolution reaction (HER). Taking advantages in effective electro catalytic HER activity, diversified spatial location and rapid interfacial charge transfer, the resulting g-C₃N₄/CNCNT exhibits significantly improved photocatalytic activity with a hydrogen evolution rate of 1208 μmol g⁻¹ h⁻¹ in triethanolamine solution, achieving about 172-fold enhancement compared with pristine g-C₃N₄. More importantly, g-C₃N4₄/CNCNT can photo catalytically decompose pure water with hydrogen evolution amount of about 92.3 μmol g⁻¹ within 4 h. |
Keywords: | Photocatalysis; water splitting; cocatalyst; g-C₃N₄; charge carrier |
Rights: | © 2019 Elsevier B.V. All rights reserved. |
DOI: | 10.1016/j.apcatb.2019.04.098 |
Grant ID: | http://purl.org/au-research/grants/arc/DP170104264 |
Published version: | http://dx.doi.org/10.1016/j.apcatb.2019.04.098 |
Appears in Collections: | Aurora harvest 4 Chemical Engineering publications |
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