Photophysical methods for the study of sol-gel transition and structure of titania gels

The sol to gel evolution of titania based systems in AOT (sodium 2-etil-hexil sulfosuccinate) reverse micelles is monitored by the fluorescence anisotropy of molecular probes located in the different phases of the system. In contrast with processes in homogeneous systems, hydrolysis and condensation...

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Detalles Bibliográficos
Autores principales: Marchi, M.C., Negri, R.M., Bilmes, S.A.
Formato: JOUR
Materias:
AOT
Fluorescence anisotropy
Reverse micelles
Titanium dioxide
Anisotropy
Gels
Hydrolysis
Micelles
Surface active agents
Homogeneous systems
Sol-gels
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_09280707_v26_n1-3_p131_Marchi
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_09280707_v26_n1-3_p131_Marchi
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spelling todo:paper_09280707_v26_n1-3_p131_Marchi2023-10-03T15:47:17Z Photophysical methods for the study of sol-gel transition and structure of titania gels Marchi, M.C. Negri, R.M. Bilmes, S.A. AOT Fluorescence anisotropy Reverse micelles Titanium dioxide Anisotropy Gels Hydrolysis Micelles Surface active agents Titanium dioxide Homogeneous systems Sol-gels The sol to gel evolution of titania based systems in AOT (sodium 2-etil-hexil sulfosuccinate) reverse micelles is monitored by the fluorescence anisotropy of molecular probes located in the different phases of the system. In contrast with processes in homogeneous systems, hydrolysis and condensation reactions occur in different time windows. The obtained results allow to describe the location of the hydrolysis, the reorganisation of the surfactant and to predict the formation of precipitates. Fil:Marchi, M.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Negri, R.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bilmes, S.A. 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_09280707_v26_n1-3_p131_Marchi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic AOT
Fluorescence anisotropy
Reverse micelles
Titanium dioxide
Anisotropy
Gels
Hydrolysis
Micelles
Surface active agents
Titanium dioxide
Homogeneous systems
Sol-gels
spellingShingle AOT
Fluorescence anisotropy
Reverse micelles
Titanium dioxide
Anisotropy
Gels
Hydrolysis
Micelles
Surface active agents
Titanium dioxide
Homogeneous systems
Sol-gels
Marchi, M.C.
Negri, R.M.
Bilmes, S.A.
Photophysical methods for the study of sol-gel transition and structure of titania gels
topic_facet AOT
Fluorescence anisotropy
Reverse micelles
Titanium dioxide
Anisotropy
Gels
Hydrolysis
Micelles
Surface active agents
Titanium dioxide
Homogeneous systems
Sol-gels
description The sol to gel evolution of titania based systems in AOT (sodium 2-etil-hexil sulfosuccinate) reverse micelles is monitored by the fluorescence anisotropy of molecular probes located in the different phases of the system. In contrast with processes in homogeneous systems, hydrolysis and condensation reactions occur in different time windows. The obtained results allow to describe the location of the hydrolysis, the reorganisation of the surfactant and to predict the formation of precipitates.
format JOUR
author Marchi, M.C.
Negri, R.M.
Bilmes, S.A.
author_facet Marchi, M.C.
Negri, R.M.
Bilmes, S.A.
author_sort Marchi, M.C.
title Photophysical methods for the study of sol-gel transition and structure of titania gels
title_short Photophysical methods for the study of sol-gel transition and structure of titania gels
title_full Photophysical methods for the study of sol-gel transition and structure of titania gels
title_fullStr Photophysical methods for the study of sol-gel transition and structure of titania gels
title_full_unstemmed Photophysical methods for the study of sol-gel transition and structure of titania gels
title_sort photophysical methods for the study of sol-gel transition and structure of titania gels
url http://hdl.handle.net/20.500.12110/paper_09280707_v26_n1-3_p131_Marchi
work_keys_str_mv AT marchimc photophysicalmethodsforthestudyofsolgeltransitionandstructureoftitaniagels
AT negrirm photophysicalmethodsforthestudyofsolgeltransitionandstructureoftitaniagels
AT bilmessa photophysicalmethodsforthestudyofsolgeltransitionandstructureoftitaniagels
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