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https://hdl.handle.net/2440/122849
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Type: | Journal article |
Title: | Phosphorous doped carbon nitride nanobelts for photodegradation of emerging contaminants and hydrogen evolution |
Author: | Wang, S. He, F. Zhao, X. Zhang, J. Ao, Z. Wu, H. Yin, Y. Shi, L. Xu, X. Zhao, C. Wang, S. Sun, H. |
Citation: | Applied Catalysis B: Environmental, 2019; 257:117931-1-117931-11 |
Publisher: | Elsevier |
Issue Date: | 2019 |
ISSN: | 0926-3373 1873-3883 |
Statement of Responsibility: | Shuaijun Wang, Fengting He, Xiaoli Zhao, Jinqiang Zhang, Zhimin Ao, Hong Wu, Yu Yin, Lei Shi, Xinyuan Xu, Chaocheng Zhao, Shaobin Wang, Hongqi Sun |
Abstract: | Photocatalysis has demonstrated great potentials for both environmental remediation and green energy production. In this study, a simple solvothermal template-free approach was employed for the first time to synthesize phosphorous doped carbon nitride nanobelt (PCNNB). Advanced characterizations, for instance, ¹³C NMR, ³¹P NMR, and XPS results indicated that P was substitutionally doped at the corner-carbon of the carbon nitride frameworks. The introduction of P dopants inhibited the polymerization between NH₂ groups within PCNNB, enabling the decrease in nanobelt width for the exposure of more active sites. Therefore, the optimized P-CN-NB-2 (derived from 0.2 mM H₃PO₄) rendered enhanced p-hydroxybenzoic acid (HBA) degradation nearly 66-fold higher than bulk g-C₃N₄, among the most efficient g-C₃N₄-based photocatalysts as reported. In addition, the P-CN-NB-1 (derived from 0.02 mM H₃PO₄) exhibited about 2 times higher H₂ evolution rate than CNNB. Density functional theory (DFT) calculations were also conducted to provide insights into the mechanism. |
Keywords: | Photocatalysis; carbon nitride; P-doping; HBA degradation; hydrogen production |
Rights: | © 2019 Elsevier B.V. All rights reserved. |
DOI: | 10.1016/j.apcatb.2019.117931 |
Grant ID: | http://purl.org/au-research/grants/arc/DP150103026 http://purl.org/au-research/grants/arc/DP170104264 |
Published version: | http://dx.doi.org/10.1016/j.apcatb.2019.117931 |
Appears in Collections: | Aurora harvest 8 Chemical Engineering publications |
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