Purification and functionalization of carbon nanotubes by classical and advanced oxidation processes
Advanced oxidation technologies (AOT) were applied for the production of accurately controlled oxidized multi-walled carbon nanotubes. Fenton process is effective to get carboxylic (-COO - or -COOH) and OH groups on the surface of carbon nanotubes while Photofenton and UV/H 2O 2 processes mostly pro...
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todo:paper_15334880_v9_n10_p6228_Escobar2023-10-03T16:21:34Z Purification and functionalization of carbon nanotubes by classical and advanced oxidation processes Escobar, M. Goyanes, S. Corcuera, M.A. Eceiza, A. Mondragon, I. Rubiolo, G.H. Candal, R.J. Carbon nanotubes Controlled oxidation Fenton Photo-fenton Acid treatments Advanced Oxidation Processes Advanced oxidation technology Chemical techniques Controlled oxidation COOH group Fenton Fenton process Field emission scanning electron microscopy Functionalizations OH group Photo-fenton Carbon nanotubes Field emission Field emission microscopes Fourier transform infrared spectroscopy Oxidation Scanning electron microscopy Spectroscopic analysis Spectroscopy Transmission electron microscopy Wastewater treatment Multiwalled carbon nanotubes (MWCN) Advanced oxidation technologies (AOT) were applied for the production of accurately controlled oxidized multi-walled carbon nanotubes. Fenton process is effective to get carboxylic (-COO - or -COOH) and OH groups on the surface of carbon nanotubes while Photofenton and UV/H 2O 2 processes mostly produce OH groups on surface of multiwalled carbon nanotubes (MWCNT). All of them preserve the structure of MWCNT allowing to achieve accurately controlled oxidized MWCNT. Fourier transform infrared spectroscopy (FTIR) and thermogravimetical analysis (TGA) show that the acid treatment is the more efficient technique to generate COOH groups on MWCNT surface. However, this chemical technique generates strong damages on the MWCNT structure, as demonstrated by TGA, field emission scanning electron microscopy and transmission electron microscopy results. Copyright © 2009 American Scientific Publishers. Fil:Escobar, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Goyanes, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Candal, R.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_15334880_v9_n10_p6228_Escobar |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Carbon nanotubes Controlled oxidation Fenton Photo-fenton Acid treatments Advanced Oxidation Processes Advanced oxidation technology Chemical techniques Controlled oxidation COOH group Fenton Fenton process Field emission scanning electron microscopy Functionalizations OH group Photo-fenton Carbon nanotubes Field emission Field emission microscopes Fourier transform infrared spectroscopy Oxidation Scanning electron microscopy Spectroscopic analysis Spectroscopy Transmission electron microscopy Wastewater treatment Multiwalled carbon nanotubes (MWCN) |
| spellingShingle |
Carbon nanotubes Controlled oxidation Fenton Photo-fenton Acid treatments Advanced Oxidation Processes Advanced oxidation technology Chemical techniques Controlled oxidation COOH group Fenton Fenton process Field emission scanning electron microscopy Functionalizations OH group Photo-fenton Carbon nanotubes Field emission Field emission microscopes Fourier transform infrared spectroscopy Oxidation Scanning electron microscopy Spectroscopic analysis Spectroscopy Transmission electron microscopy Wastewater treatment Multiwalled carbon nanotubes (MWCN) Escobar, M. Goyanes, S. Corcuera, M.A. Eceiza, A. Mondragon, I. Rubiolo, G.H. Candal, R.J. Purification and functionalization of carbon nanotubes by classical and advanced oxidation processes |
| topic_facet |
Carbon nanotubes Controlled oxidation Fenton Photo-fenton Acid treatments Advanced Oxidation Processes Advanced oxidation technology Chemical techniques Controlled oxidation COOH group Fenton Fenton process Field emission scanning electron microscopy Functionalizations OH group Photo-fenton Carbon nanotubes Field emission Field emission microscopes Fourier transform infrared spectroscopy Oxidation Scanning electron microscopy Spectroscopic analysis Spectroscopy Transmission electron microscopy Wastewater treatment Multiwalled carbon nanotubes (MWCN) |
| description |
Advanced oxidation technologies (AOT) were applied for the production of accurately controlled oxidized multi-walled carbon nanotubes. Fenton process is effective to get carboxylic (-COO - or -COOH) and OH groups on the surface of carbon nanotubes while Photofenton and UV/H 2O 2 processes mostly produce OH groups on surface of multiwalled carbon nanotubes (MWCNT). All of them preserve the structure of MWCNT allowing to achieve accurately controlled oxidized MWCNT. Fourier transform infrared spectroscopy (FTIR) and thermogravimetical analysis (TGA) show that the acid treatment is the more efficient technique to generate COOH groups on MWCNT surface. However, this chemical technique generates strong damages on the MWCNT structure, as demonstrated by TGA, field emission scanning electron microscopy and transmission electron microscopy results. Copyright © 2009 American Scientific Publishers. |
| format |
JOUR |
| author |
Escobar, M. Goyanes, S. Corcuera, M.A. Eceiza, A. Mondragon, I. Rubiolo, G.H. Candal, R.J. |
| author_facet |
Escobar, M. Goyanes, S. Corcuera, M.A. Eceiza, A. Mondragon, I. Rubiolo, G.H. Candal, R.J. |
| author_sort |
Escobar, M. |
| title |
Purification and functionalization of carbon nanotubes by classical and advanced oxidation processes |
| title_short |
Purification and functionalization of carbon nanotubes by classical and advanced oxidation processes |
| title_full |
Purification and functionalization of carbon nanotubes by classical and advanced oxidation processes |
| title_fullStr |
Purification and functionalization of carbon nanotubes by classical and advanced oxidation processes |
| title_full_unstemmed |
Purification and functionalization of carbon nanotubes by classical and advanced oxidation processes |
| title_sort |
purification and functionalization of carbon nanotubes by classical and advanced oxidation processes |
| url |
http://hdl.handle.net/20.500.12110/paper_15334880_v9_n10_p6228_Escobar |
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1807317009135828992 |