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Effects of Different TiO(2) Particle Sizes on the Microstructure and Optical Limiting Properties of TiO(2)/Reduced Graphene Oxide Nanocomposites

TiO(2)/reduced graphene oxide (rGO) nanocomposites with two different TiO(2) particle sizes were synthesized by a facile hydrothermal method using two different source materials of Ti: tetrabutyl titanate (TBT) and commercial TiO(2) powder (P25). For respective series with the same source materials,...

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Autores principales: Ren, Yuyu, Zhao, Lili, Zou, Yang, Song, Lixin, Dong, Ningning, Wang, Jun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6566690/
https://www.ncbi.nlm.nih.gov/pubmed/31083527
http://dx.doi.org/10.3390/nano9050730
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author Ren, Yuyu
Zhao, Lili
Zou, Yang
Song, Lixin
Dong, Ningning
Wang, Jun
author_facet Ren, Yuyu
Zhao, Lili
Zou, Yang
Song, Lixin
Dong, Ningning
Wang, Jun
author_sort Ren, Yuyu
collection PubMed
description TiO(2)/reduced graphene oxide (rGO) nanocomposites with two different TiO(2) particle sizes were synthesized by a facile hydrothermal method using two different source materials of Ti: tetrabutyl titanate (TBT) and commercial TiO(2) powder (P25). For respective series with the same source materials, we investigated additions that optimized the nonlinear optical properties (NLO) and optical limiting (OL) performances, and we explored the relationships between structural diversity and performance. Several characterization techniques, including X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, and diffuse reflectance ultraviolet-visible spectroscopy (UV-Vis) were conducted to confirm the microstructures and chemical states of as-prepared materials. This indicated the existence of the Ti–O–C bond between rGO sheets and TiO(2) particles and the reduction from precursor graphene oxide (GO) to rGO. The results of UV-Vis spectra revealed that the TiO(2)/rGO nanocomposites showed smaller band gaps than bare TiO(2). A nanosecond open-aperture Z-scan technique at 1064 nm was applied to investigate NLO and OL properties. TiO(2)/rGO nanocomposites exhibited enhanced NLO and OL performances, arising from synergistic effects, compared to individual components. The TBT series samples performed better than the P25 series, presumably relevant to dimensional effects.
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spelling pubmed-65666902019-06-17 Effects of Different TiO(2) Particle Sizes on the Microstructure and Optical Limiting Properties of TiO(2)/Reduced Graphene Oxide Nanocomposites Ren, Yuyu Zhao, Lili Zou, Yang Song, Lixin Dong, Ningning Wang, Jun Nanomaterials (Basel) Article TiO(2)/reduced graphene oxide (rGO) nanocomposites with two different TiO(2) particle sizes were synthesized by a facile hydrothermal method using two different source materials of Ti: tetrabutyl titanate (TBT) and commercial TiO(2) powder (P25). For respective series with the same source materials, we investigated additions that optimized the nonlinear optical properties (NLO) and optical limiting (OL) performances, and we explored the relationships between structural diversity and performance. Several characterization techniques, including X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, and diffuse reflectance ultraviolet-visible spectroscopy (UV-Vis) were conducted to confirm the microstructures and chemical states of as-prepared materials. This indicated the existence of the Ti–O–C bond between rGO sheets and TiO(2) particles and the reduction from precursor graphene oxide (GO) to rGO. The results of UV-Vis spectra revealed that the TiO(2)/rGO nanocomposites showed smaller band gaps than bare TiO(2). A nanosecond open-aperture Z-scan technique at 1064 nm was applied to investigate NLO and OL properties. TiO(2)/rGO nanocomposites exhibited enhanced NLO and OL performances, arising from synergistic effects, compared to individual components. The TBT series samples performed better than the P25 series, presumably relevant to dimensional effects. MDPI 2019-05-11 /pmc/articles/PMC6566690/ /pubmed/31083527 http://dx.doi.org/10.3390/nano9050730 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ren, Yuyu
Zhao, Lili
Zou, Yang
Song, Lixin
Dong, Ningning
Wang, Jun
Effects of Different TiO(2) Particle Sizes on the Microstructure and Optical Limiting Properties of TiO(2)/Reduced Graphene Oxide Nanocomposites
title Effects of Different TiO(2) Particle Sizes on the Microstructure and Optical Limiting Properties of TiO(2)/Reduced Graphene Oxide Nanocomposites
title_full Effects of Different TiO(2) Particle Sizes on the Microstructure and Optical Limiting Properties of TiO(2)/Reduced Graphene Oxide Nanocomposites
title_fullStr Effects of Different TiO(2) Particle Sizes on the Microstructure and Optical Limiting Properties of TiO(2)/Reduced Graphene Oxide Nanocomposites
title_full_unstemmed Effects of Different TiO(2) Particle Sizes on the Microstructure and Optical Limiting Properties of TiO(2)/Reduced Graphene Oxide Nanocomposites
title_short Effects of Different TiO(2) Particle Sizes on the Microstructure and Optical Limiting Properties of TiO(2)/Reduced Graphene Oxide Nanocomposites
title_sort effects of different tio(2) particle sizes on the microstructure and optical limiting properties of tio(2)/reduced graphene oxide nanocomposites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6566690/
https://www.ncbi.nlm.nih.gov/pubmed/31083527
http://dx.doi.org/10.3390/nano9050730
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