Effects of Different TiO<sub>2</sub> Particle Sizes on the Microstructure and Optical Limiting Properties of TiO<sub>2</sub>/Reduced Graphene Oxide Nanocomposites
TiO<sub>2</sub>/reduced graphene oxide (rGO) nanocomposites with two different TiO<sub>2</sub> particle sizes were synthesized by a facile hydrothermal method using two different source materials of Ti: tetrabutyl titanate (TBT) and commercial TiO<sub>2</sub> powd...
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MDPI AG
2019-05-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/9/5/730 |
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| author | Yuyu Ren Lili Zhao Yang Zou Lixin Song Ningning Dong Jun Wang |
| author_facet | Yuyu Ren Lili Zhao Yang Zou Lixin Song Ningning Dong Jun Wang |
| author_sort | Yuyu Ren |
| collection | DOAJ |
| description | TiO<sub>2</sub>/reduced graphene oxide (rGO) nanocomposites with two different TiO<sub>2</sub> particle sizes were synthesized by a facile hydrothermal method using two different source materials of Ti: tetrabutyl titanate (TBT) and commercial TiO<sub>2</sub> 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<sub>2</sub> particles and the reduction from precursor graphene oxide (GO) to rGO. The results of UV-Vis spectra revealed that the TiO<sub>2</sub>/rGO nanocomposites showed smaller band gaps than bare TiO<sub>2</sub>. A nanosecond open-aperture Z-scan technique at 1064 nm was applied to investigate NLO and OL properties. TiO<sub>2</sub>/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. |
| first_indexed | 2024-12-20T11:05:43Z |
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| id | doaj.art-be1232013aa24e3b8f56d1e9cfd11044 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-12-20T11:05:43Z |
| publishDate | 2019-05-01 |
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| spelling | doaj.art-be1232013aa24e3b8f56d1e9cfd110442022-12-21T19:42:52ZengMDPI AGNanomaterials2079-49912019-05-019573010.3390/nano9050730nano9050730Effects of Different TiO<sub>2</sub> Particle Sizes on the Microstructure and Optical Limiting Properties of TiO<sub>2</sub>/Reduced Graphene Oxide NanocompositesYuyu Ren0Lili Zhao1Yang Zou2Lixin Song3Ningning Dong4Jun Wang5Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, ChinaKey Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, ChinaKey Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, ChinaKey Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, ChinaCenter of Materials Sciences and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing 100049, ChinaCenter of Materials Sciences and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing 100049, ChinaTiO<sub>2</sub>/reduced graphene oxide (rGO) nanocomposites with two different TiO<sub>2</sub> particle sizes were synthesized by a facile hydrothermal method using two different source materials of Ti: tetrabutyl titanate (TBT) and commercial TiO<sub>2</sub> 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<sub>2</sub> particles and the reduction from precursor graphene oxide (GO) to rGO. The results of UV-Vis spectra revealed that the TiO<sub>2</sub>/rGO nanocomposites showed smaller band gaps than bare TiO<sub>2</sub>. A nanosecond open-aperture Z-scan technique at 1064 nm was applied to investigate NLO and OL properties. TiO<sub>2</sub>/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.https://www.mdpi.com/2079-4991/9/5/730optical limitingTiO<sub>2</sub>reduced graphene oxidenanocomposites |
| spellingShingle | Yuyu Ren Lili Zhao Yang Zou Lixin Song Ningning Dong Jun Wang Effects of Different TiO<sub>2</sub> Particle Sizes on the Microstructure and Optical Limiting Properties of TiO<sub>2</sub>/Reduced Graphene Oxide Nanocomposites Nanomaterials optical limiting TiO<sub>2</sub> reduced graphene oxide nanocomposites |
| title | Effects of Different TiO<sub>2</sub> Particle Sizes on the Microstructure and Optical Limiting Properties of TiO<sub>2</sub>/Reduced Graphene Oxide Nanocomposites |
| title_full | Effects of Different TiO<sub>2</sub> Particle Sizes on the Microstructure and Optical Limiting Properties of TiO<sub>2</sub>/Reduced Graphene Oxide Nanocomposites |
| title_fullStr | Effects of Different TiO<sub>2</sub> Particle Sizes on the Microstructure and Optical Limiting Properties of TiO<sub>2</sub>/Reduced Graphene Oxide Nanocomposites |
| title_full_unstemmed | Effects of Different TiO<sub>2</sub> Particle Sizes on the Microstructure and Optical Limiting Properties of TiO<sub>2</sub>/Reduced Graphene Oxide Nanocomposites |
| title_short | Effects of Different TiO<sub>2</sub> Particle Sizes on the Microstructure and Optical Limiting Properties of TiO<sub>2</sub>/Reduced Graphene Oxide Nanocomposites |
| title_sort | effects of different tio sub 2 sub particle sizes on the microstructure and optical limiting properties of tio sub 2 sub reduced graphene oxide nanocomposites |
| topic | optical limiting TiO<sub>2</sub> reduced graphene oxide nanocomposites |
| url | https://www.mdpi.com/2079-4991/9/5/730 |
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