Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/115799
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Type: | Journal article |
Title: | Ferric carbide nanocrystals encapsulated in nitrogen-doped carbon nanotubes as an outstanding environmental catalyst |
Author: | Wang, C. Kang, J. Liang, P. Zhang, H. Sun, H. Tadé, M.O. Wang, S. |
Citation: | Environmental Science: Nano, 2017; 4(1):170-179 |
Publisher: | Royal Society of Chemistry |
Issue Date: | 2017 |
ISSN: | 2051-8153 2051-8161 |
Statement of Responsibility: | Chen Wang, Jian Kang, Ping Liang, Huayang Zhang, Hongqi Sun, Moses O. Tadé and Shaobin Wang |
Abstract: | Nitrogen-doped carbon nanotubes encapsulating iron carbide (Fe₃C) nanocrystals (Fe₃C@NCNT) were fabricated by a simple and direct pyrolysis method using melamine and ferric chloride as the C, N and Fe precursors. The surface morphology, structure and composition of the Fe₃C@NCNT materials were thoroughly investigated. The nanomaterials were employed as novel catalysts for peroxymonosulfate (PMS) activation; outstanding efficiency, high stability and excellent reusability were observed in the catalytic oxidation of organics. The encapsulated Fe₃C nanoparticles played a key role in the emerging synergetic effects of the carbide and the protective graphitic layers. In addition, the quaternary N and trace amounts of iron on the CNT surface acted as the active sites. Various quenching experiments were carried out to elucidate the catalytic mechanism of Fe₃C@NCNT. It was found that singlet oxygen, superoxide, sulfate and hydroxyl radicals worked together to degrade phenol solutions. Due to their simple synthesis method, low-cost precursors, unique structure and excellent catalytic activity and stability, these novel iron-carbide-based composites have great potential as new strategic materials for environmental catalysis. |
Description: | Print edition (ISSN 2051-8153) is obsolete. eISSN entered is active. Published on 10 November 2016 |
Rights: | This journal is © The Royal Society of Chemistry 2017. Open Access Article. This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. |
DOI: | 10.1039/C6EN00397D |
Grant ID: | http://purl.org/au-research/grants/arc/DP130101319 |
Published version: | http://dx.doi.org/10.1039/c6en00397d |
Appears in Collections: | Aurora harvest 8 Chemical Engineering publications |
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hdl_115799.pdf | Published version | 3.64 MB | Adobe PDF | View/Open |
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