Functionalization of PLA aerogels with TiO2 nanoparticles

This study was aimed to prepare material with high porosity and photocatalytic activity by immobilization of TiO2 nanoparticles (NPs) onto poly(lactic acid) (PLA) aerogels. PLA aerogels were prepared in three steps: (1) dissolution of polymer in chloroform at 22 °C, (2) chloroform replacement with e...

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Autores principales:	Milovanović Stoja L., Marković Darka D., Nikolić Ivana D.
Formato:	article
Lenguaje:	EN SR
Publicado:	Savez inženjera i tehničara Srbije 2021
Materias:	photocatalytic activity poly(lactic acid) aerogel supercritical co2 tio2 nanoparticles Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/4d9d0134a3f84e80ac3c1d5482d8b349
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spelling	oai:doaj.org-article:4d9d0134a3f84e80ac3c1d5482d8b3492021-12-05T21:39:59ZFunctionalization of PLA aerogels with TiO2 nanoparticles0040-21762560-308610.5937/tehnika2104403Mhttps://doaj.org/article/4d9d0134a3f84e80ac3c1d5482d8b3492021-01-01T00:00:00Zhttps://scindeks-clanci.ceon.rs/data/pdf/0040-2176/2021/0040-21762104403M.pdfhttps://doaj.org/toc/0040-2176https://doaj.org/toc/2560-3086This study was aimed to prepare material with high porosity and photocatalytic activity by immobilization of TiO2 nanoparticles (NPs) onto poly(lactic acid) (PLA) aerogels. PLA aerogels were prepared in three steps: (1) dissolution of polymer in chloroform at 22 °C, (2) chloroform replacement with ethanol, and (3) supercritical CO2-drying at pressure 19 MPa and temperature 39 ºC. Immobilization of TiO2 NPs was performed by in situ and ex situ methods. Obtained samples were characterized using SEM, EDX, and FTIR analysis. Photocatalytic activity of developed material was tested by following decolorization of dye C.I. Acid Orange 7 in water solution. It was shown that the morphology of PLA aerogels was slightly affected by TiO2 NPs immobilization. PLA aerogels with TiO2 NPs immobilized by ex situ method sustained floatability during test period and provided a complete decolorization of dye solution after 330 minutes of illumination. High photocatalytic activity of the sample was preserved within three repeated cycles of dye decolorization.Milovanović Stoja L.Marković Darka D.Nikolić Ivana D.Savez inženjera i tehničara Srbijearticlephotocatalytic activitypoly(lactic acid) aerogelsupercritical co2tio2 nanoparticlesEngineering (General). Civil engineering (General)TA1-2040ENSRTehnika, Vol 76, Iss 4, Pp 403-408 (2021)
institution	DOAJ
collection	DOAJ
language	EN SR
topic	photocatalytic activity poly(lactic acid) aerogel supercritical co2 tio2 nanoparticles Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	photocatalytic activity poly(lactic acid) aerogel supercritical co2 tio2 nanoparticles Engineering (General). Civil engineering (General) TA1-2040 Milovanović Stoja L. Marković Darka D. Nikolić Ivana D. Functionalization of PLA aerogels with TiO2 nanoparticles
description	This study was aimed to prepare material with high porosity and photocatalytic activity by immobilization of TiO2 nanoparticles (NPs) onto poly(lactic acid) (PLA) aerogels. PLA aerogels were prepared in three steps: (1) dissolution of polymer in chloroform at 22 °C, (2) chloroform replacement with ethanol, and (3) supercritical CO2-drying at pressure 19 MPa and temperature 39 ºC. Immobilization of TiO2 NPs was performed by in situ and ex situ methods. Obtained samples were characterized using SEM, EDX, and FTIR analysis. Photocatalytic activity of developed material was tested by following decolorization of dye C.I. Acid Orange 7 in water solution. It was shown that the morphology of PLA aerogels was slightly affected by TiO2 NPs immobilization. PLA aerogels with TiO2 NPs immobilized by ex situ method sustained floatability during test period and provided a complete decolorization of dye solution after 330 minutes of illumination. High photocatalytic activity of the sample was preserved within three repeated cycles of dye decolorization.
format	article
author	Milovanović Stoja L. Marković Darka D. Nikolić Ivana D.
author_facet	Milovanović Stoja L. Marković Darka D. Nikolić Ivana D.
author_sort	Milovanović Stoja L.
title	Functionalization of PLA aerogels with TiO2 nanoparticles
title_short	Functionalization of PLA aerogels with TiO2 nanoparticles
title_full	Functionalization of PLA aerogels with TiO2 nanoparticles
title_fullStr	Functionalization of PLA aerogels with TiO2 nanoparticles
title_full_unstemmed	Functionalization of PLA aerogels with TiO2 nanoparticles
title_sort	functionalization of pla aerogels with tio2 nanoparticles
publisher	Savez inženjera i tehničara Srbije
publishDate	2021
url	https://doaj.org/article/4d9d0134a3f84e80ac3c1d5482d8b349
work_keys_str_mv	AT milovanovicstojal functionalizationofplaaerogelswithtio2nanoparticles AT markovicdarkad functionalizationofplaaerogelswithtio2nanoparticles AT nikolicivanad functionalizationofplaaerogelswithtio2nanoparticles
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Functionalization of PLA aerogels with TiO2 nanoparticles

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