PHOTOACTIVE POLYACRYLONITRILE FIBERS COATED BY NANO-SIZED TITANIUM DIOXIDE: SYNTHESIS, CHARACTERIZATION, THERMAL INVESTIGATION

Anatase nanocrystals were successfully synthesized and deposited onto polyacrylonitrile fibers with photocatalytic self-cleaning activity using the sol-gel process at low temperature. The original and treated samples have been characterized by several techniques such as scanning electron microscopy,...

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Autores principales:	MOAFI,HADI FALLAH, FALLAH SHOJAIE,ABDOLLAH, ALI ZANJANCHI,MOHAMMAD
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2011
Materias:	Polyacrylonitrile Titanium dioxide Thermogravimetric analysis Differential scanning calorimetry Photodegradation Eosin Yellowish
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072011000100020
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spelling	oai:scielo:S0717-970720110001000202011-06-17PHOTOACTIVE POLYACRYLONITRILE FIBERS COATED BY NANO-SIZED TITANIUM DIOXIDE: SYNTHESIS, CHARACTERIZATION, THERMAL INVESTIGATIONMOAFI,HADI FALLAHFALLAH SHOJAIE,ABDOLLAHALI ZANJANCHI,MOHAMMAD Polyacrylonitrile Titanium dioxide Thermogravimetric analysis Differential scanning calorimetry Photodegradation Eosin Yellowish Anatase nanocrystals were successfully synthesized and deposited onto polyacrylonitrile fibers with photocatalytic self-cleaning activity using the sol-gel process at low temperature. The original and treated samples have been characterized by several techniques such as scanning electron microscopy, fourier transform infrared spectroscopy, x-ray diffraction, diffuse reflectance spectroscopy, thermogravimetric analysis and differential scanning calorimetry. The TiO2 nanoparticles, have been found to form a homogeneous thin film on the fiber surface. The photocatalytic activity, tested by measuring the degradation of adsorbed Eosin Yellowish dye. The photoactivity of the titanium dioxide coated fibres is much higher than that observed in case of untreated fibers. The photocatalytic self-cleaning properties of the treated fibers was fully maintained performing several cycles of photodegradation. This preparation technique can be also applied to new fabrics to create self-cleaning properties in them. The thermogravimetric study of PAN/TiO2 composite showed a slight increase of weight loss in the second step, which implied that, the dehydrogenation and oxygen uptake reactions would be promoted by the TiO2 to some extent.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.56 n.1 20112011-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072011000100020en10.4067/S0717-97072011000100020
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Polyacrylonitrile Titanium dioxide Thermogravimetric analysis Differential scanning calorimetry Photodegradation Eosin Yellowish
spellingShingle	Polyacrylonitrile Titanium dioxide Thermogravimetric analysis Differential scanning calorimetry Photodegradation Eosin Yellowish MOAFI,HADI FALLAH FALLAH SHOJAIE,ABDOLLAH ALI ZANJANCHI,MOHAMMAD PHOTOACTIVE POLYACRYLONITRILE FIBERS COATED BY NANO-SIZED TITANIUM DIOXIDE: SYNTHESIS, CHARACTERIZATION, THERMAL INVESTIGATION
description	Anatase nanocrystals were successfully synthesized and deposited onto polyacrylonitrile fibers with photocatalytic self-cleaning activity using the sol-gel process at low temperature. The original and treated samples have been characterized by several techniques such as scanning electron microscopy, fourier transform infrared spectroscopy, x-ray diffraction, diffuse reflectance spectroscopy, thermogravimetric analysis and differential scanning calorimetry. The TiO2 nanoparticles, have been found to form a homogeneous thin film on the fiber surface. The photocatalytic activity, tested by measuring the degradation of adsorbed Eosin Yellowish dye. The photoactivity of the titanium dioxide coated fibres is much higher than that observed in case of untreated fibers. The photocatalytic self-cleaning properties of the treated fibers was fully maintained performing several cycles of photodegradation. This preparation technique can be also applied to new fabrics to create self-cleaning properties in them. The thermogravimetric study of PAN/TiO2 composite showed a slight increase of weight loss in the second step, which implied that, the dehydrogenation and oxygen uptake reactions would be promoted by the TiO2 to some extent.
author	MOAFI,HADI FALLAH FALLAH SHOJAIE,ABDOLLAH ALI ZANJANCHI,MOHAMMAD
author_facet	MOAFI,HADI FALLAH FALLAH SHOJAIE,ABDOLLAH ALI ZANJANCHI,MOHAMMAD
author_sort	MOAFI,HADI FALLAH
title	PHOTOACTIVE POLYACRYLONITRILE FIBERS COATED BY NANO-SIZED TITANIUM DIOXIDE: SYNTHESIS, CHARACTERIZATION, THERMAL INVESTIGATION
title_short	PHOTOACTIVE POLYACRYLONITRILE FIBERS COATED BY NANO-SIZED TITANIUM DIOXIDE: SYNTHESIS, CHARACTERIZATION, THERMAL INVESTIGATION
title_full	PHOTOACTIVE POLYACRYLONITRILE FIBERS COATED BY NANO-SIZED TITANIUM DIOXIDE: SYNTHESIS, CHARACTERIZATION, THERMAL INVESTIGATION
title_fullStr	PHOTOACTIVE POLYACRYLONITRILE FIBERS COATED BY NANO-SIZED TITANIUM DIOXIDE: SYNTHESIS, CHARACTERIZATION, THERMAL INVESTIGATION
title_full_unstemmed	PHOTOACTIVE POLYACRYLONITRILE FIBERS COATED BY NANO-SIZED TITANIUM DIOXIDE: SYNTHESIS, CHARACTERIZATION, THERMAL INVESTIGATION
title_sort	photoactive polyacrylonitrile fibers coated by nano-sized titanium dioxide: synthesis, characterization, thermal investigation
publisher	Sociedad Chilena de Química
publishDate	2011
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072011000100020
work_keys_str_mv	AT moafihadifallah photoactivepolyacrylonitrilefiberscoatedbynanosizedtitaniumdioxidesynthesischaracterizationthermalinvestigation AT fallahshojaieabdollah photoactivepolyacrylonitrilefiberscoatedbynanosizedtitaniumdioxidesynthesischaracterizationthermalinvestigation AT alizanjanchimohammad photoactivepolyacrylonitrilefiberscoatedbynanosizedtitaniumdioxidesynthesischaracterizationthermalinvestigation
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PHOTOACTIVE POLYACRYLONITRILE FIBERS COATED BY NANO-SIZED TITANIUM DIOXIDE: SYNTHESIS, CHARACTERIZATION, THERMAL INVESTIGATION

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