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Rutile phase
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In this report, SERS substrates based on Ag-decorated TiO2 nanofibers electrospun on a glass substrate (Ag/TiO2/glass) were successfully prepared using electrospinning and photodeposition methods. XRD pattern demonstrated that the crystalline structure of TiO2 nanofibers (TiO2 NFs) consisted of both anatase and rutile phase.
9p
meyerowitz
25-12-2021
9
0
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TiO2 nanocrystal powders have been prepared by sol-gel routes. By controlling pH, TiO2 nanoparticles of sizes ranging from 7 to 14 nm can be synthesized. X-ray diffraction (XRD) analysis indicated that both the anatase and the rutile phase appears in the powder when pH < 2.
6p
tamynhan9
02-12-2020
26
3
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The concentration of the HCl reaction medium and the following aging are the essential factors affecting the formation and phase composition of the resulting TiO2 nanocrystals. TiO2 nanoparticles in the form of pure anatase and the rutile phase can be extracted and segregated from the suspension and precipitate of the synthesizing medium.
5p
tamynhan9
02-12-2020
24
2
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The SnO2/TiO2 nanoparticles have been successfully synthesized via the surfactant-assisted sol-gel method. The results showed that the anatase to rutile phase transformation and the crystallite size increased with increasing the calcination temperature.
13p
tamynhan4
06-09-2020
16
1
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Titanium dioxide (TiO2) is one of the most widely studied materials in many fields such as photocatalysis in water and air treatment, solar fuel generation, sensor and photovoltaic devices [1, 2]. Of the three structurally stable phases of TiO2, rutile is the most stable one, attracting thus much interest in surface science.
8p
vithomasedison2711
14-08-2019
17
0
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The results showed that the samples heat-treated at low temperature (≤600 ◦C) exhibited anatase phase and for Cr3+-doped anatase TiO2 samples with x ≥ 0.01, Raman spectra showed a new series of peaks at 120, 236, 250, 292, 362, 430, 467 and 550 cm−1 , which were assigned to the localized vibrational modes related to the complexes containing Cr3+ ions. The samples heat-treated at high temperature (1100 ◦C) exhibited rutile phase. It was observed that the characteristic Raman modes (Eg and M) for rutile TiO2 were shifted and broadened with increasing Cr3+ dopant content.
10p
thuyliebe
09-10-2018
25
0
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