Solvothermal Preparation of CaTiO3 Prism and CaTi2O4(OH)2 Nanosheet by a Facile Surfactant-Free Method
<span>Calcium titanate (CaTiO<sub>3</sub>) with prism-like-shaped and CaTi<sub>2</sub>O<sub>4</sub>(OH)<sub>2</sub> nanosheet-like morphology were synthesized by a simple solvothermal route without any surfactants. X–ray diffraction (XRD), field...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Kaunas University of Technology
2015-11-01
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| Series: | Medžiagotyra |
| Subjects: | |
| Online Access: | http://matsc.ktu.lt/index.php/MatSc/article/view/9697 |
| Summary: | <span>Calcium titanate (CaTiO<sub>3</sub>) with prism-like-shaped and CaTi<sub>2</sub>O<sub>4</sub>(OH)<sub>2</sub> nanosheet-like morphology were synthesized by a simple solvothermal route without any surfactants. X–ray diffraction (XRD), field emission scanning electron microscopy (FESEM) and Fourier transform infrared spectroscopy (FT-IR) were employed to investigate the microstructure of the samples. The experimental results showed that NaOH concentration played a key role for the formation of CaTiO<sub>3</sub> prisms. With increasing NaOH concentrations, the obtained sample changed from CaTi<sub>2</sub>O<sub>5 </sub>aggregated particles to CaTi<sub>2</sub>O<sub>4</sub>(OH)<sub>2</sub> nanosheets, and then to CaTiO<sub>3</sub> prisms. When NaOH concentration was 7 M, CaTiO<sub>3 </sub>morphology is mainly composed of regular prisms. A rational mechanism was proposed to illustrate the morphology evolution of the samples synthesized at various NaOH concentrations. And the CaTi<sub>2</sub>O<sub>4</sub>(OH)<sub>2</sub> interlaminar structure was illustrated.</span><p>DOI: <a href="http://dx.doi.org/10.5755/j01.ms.21.4.9697">http://dx.doi.org/10.5755/j01.ms.21.4.9697</a></p> |
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| ISSN: | 1392-1320 2029-7289 |