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C 2016, 2(3), 17; doi:10.3390/c2030017

Tuning CNT Properties for Metal-Free Environmental Catalytic Applications

Laboratory of Separation and Reaction Engineering—Laboratory of Catalysis and Materials (LSRE-LCM), Department of Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
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Academic Editor: Vijay Kumar Thakur
Received: 30 May 2016 / Revised: 24 June 2016 / Accepted: 27 June 2016 / Published: 29 June 2016
(This article belongs to the Special Issue Surface Modification of Carbon Nanotubes)
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Abstract

The application of carbon nanotubes (CNTs) as metal-free catalysts is a novel approach for heterogeneous liquid phase catalytic systems. Textural and chemical modifications by liquid/gas phase or mechanical treatments, as well as solid state reactions, were successfully applied to obtain carbon nanotubes with different surface functionalities. Oxygen, nitrogen, and sulfur are the most common heteroatoms introduced on the carbon surface. This short-review highlights different routes used to develop metal-free carbon nanotube catalysts with enhanced properties for Advanced Oxidation Processes. View Full-Text
Keywords: carbon nanotubes; metal-free catalysts; oxygen surface groups; nitrogen-containing groups; sulfur surface functionalities; advanced oxidation processes carbon nanotubes; metal-free catalysts; oxygen surface groups; nitrogen-containing groups; sulfur surface functionalities; advanced oxidation processes
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Rocha, R.P.; Soares, O.S.; Figueiredo, J.L.; Pereira, M.F.R. Tuning CNT Properties for Metal-Free Environmental Catalytic Applications. C 2016, 2, 17.

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