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https://hdl.handle.net/2440/117737
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Type: | Journal article |
Title: | Nitrogen-doped bamboo-like carbon nanotubes with Ni encapsulation for persulfate activation to remove emerging contaminants with excellent catalytic stability |
Author: | Kang, J. Duan, X. Wang, C. Sun, H. Tan, X. Tade, M. Wang, S. |
Citation: | Chemical Engineering Journal, 2018; 332:398-408 |
Publisher: | Elsevier |
Issue Date: | 2018 |
ISSN: | 1385-8947 1873-3212 |
Statement of Responsibility: | Jian Kang, Xiaoguang Duan, Chen Wang, Hongqi Sun, Xiaoyao Tan, Moses O. Tade, Shaobin Wang |
Abstract: | Nitrogen-doped bamboo-like carbon nanotubes encapsulated with nickel nanoparticles (Ni@NCNTs) were feasibly fabricated by a one-pot pyrolysis route. The characterization techniques revealed the surface morphology, structure and chemical composition of the as-prepared catalysts synthesized in different conditions. Ni@NCNTs were employed as both adsorbents and catalysts for activating persulfate to remove an emerging pollutant, antibiotic sulfachloropyridazine. The nitrogen modification enhanced both adsorption capacity and catalytic ability of Ni@NCNTs and proved to be a promising alternative to metal oxides and other carbon catalysts. Moreover, Ni@NCNTs showed an excellent stability because of nitrogen heteroatom doping and Ni nanoparticle encapsulation. Electron paramagnetic resonance (EPR) and classical radical quenching tests discovered a simultaneous radical/non-radical mechanism in Ni@NCNTs/persulfate system. The results indicated that the novel nano-architectured catalyst materials can show emerging functionalities for environmental remediation processes. |
Keywords: | Nitrogen doping; carbon nanotubes; antibiotics; persulfate; sulfate radicals |
Rights: | © 2017 Elsevier B.V. All rights reserved. |
DOI: | 10.1016/j.cej.2017.09.102 |
Grant ID: | http://purl.org/au-research/grants/arc/DP150103026 |
Published version: | http://dx.doi.org/10.1016/j.cej.2017.09.102 |
Appears in Collections: | Aurora harvest 8 Chemical Engineering publications |
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