Low-frequency Raman characterization of size-controlled anatase TiO2 nanopowders prepared by continuous hydrothermal syntheses
Source abstract
Abstract
The advantages of a recently presented continuous hydrothermal elaboration route for size-controlled anatase TiO2 nanoparticles are investigated. Nanopowders prepared by this route and using a soft chemistry route are characterized using X-ray diffraction, surface area measurements, high-resolution electron microscopy and Raman spectroscopy with an emphasis on the determination of the size distribution with low-frequency Raman measurements. The continuous hydrothermal route is shown to be more suitable for producing narrower size distributions.
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Research context
OpenAlex topics: Quantum Dots Synthesis And Properties · TiO2 Photocatalysis and Solar Cells · Copper-based nanomaterials and applications
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References (27)
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1. Adschiri T., Kanazawa K., Arai K., (1992). Rapid and continuous hydrothermal crystallization of metal oxide particles in supercritical water. J. Amer. Ceram. Soc 75: 1019–102210.1111/j.1151-2916.1992.tb04179.x ↗
2. Alivisatos A.P., (1996). Perspectives on the physical chemistry of semiconductor nanocrystals. J. Phys. Chem. 100: 13226–1323910.1021/jp9535506 ↗
3. Baraton M., Merhari L., (2004). Surface chemistry of TiO2 nanoparticles: influence on electrical and gas sensing properties. J. Europ. Ceram. Soc. 24: 1399–140410.1016/S0955-2219(03)00419-9 ↗
4. Bersani D., Antonioli G., Lottici P.P., Lopez T., (1998). Raman study of nanosized titania prepared by sol-gel route. J. Non-Cryst. Sol. 232–234: 175–18110.1016/S0022-3093(98)00489-X ↗
5. Duval E., (1992). Far-infrared and Raman vibrational transitions of a solid sphere: selection rules. Phys. Rev. B 46: 5795–579710.1103/PhysRevB.46.5795 ↗
6. Duval E., Boukenter A., Champagnon B., (1986). Vibration eigenmodes and size of microcrystallites in glass: observation by very-low-frequency Raman scattering. Phys. Rev. Lett. 56: 2052–205510.1103/PhysRevLett.56.2052 ↗
7. Gotić M., Ivanda M., Popović S., Musić S., Sekulić A., Turković A., Furić K., (1997). Raman investigation of nanosized TiO2. J. Raman. Spec. 28: 555–55810.1002/(SICI)1097-4555(199707)28:7<555::AID-JRS118>3.0.CO;2-S ↗
8. Kim E.J., Hahn S.H., (2001). Microstructural changes of microemulsion-mediated TiO2 particles during calcination. Mater. Lett. 49: 244–24910.1016/S0167-577X(00)00382-7 ↗
9. Lamb H., (1882). On the vibrations of an elastic sphere. Proc. London Math. Soc. 13: 189–212
10. Langford J., (1992). The use of the Voigt function in determining microstructural properties from diffraction data by means of pattern decomposition. NIST Special Publication 846: 110–125
11. Li Y., Hagen J., Schaffrath W., Otschik P., Haarer D., (1999). Titanium dioxide films for photovoltaic cells derived from a sol-gel process. Solar Energy Mater. Solar Cells 56: 167–17410.1016/S0927-0248(98)00157-3 ↗
12. McHale M., Auroux A., Perotta A., Navrotsky A., (1997). Surface energies and thermodynamic phase stability in nanocrystalline aluminas. Science 277: 788–79110.1126/science.277.5327.788 ↗
13. Melendres A., Narayanasamy A., Maroni V., Siegel R., (1989). Raman spectroscopy of nanophase TiO2. J. Mater. Res. 4: 1246–125010.1557/JMR.1989.1246 ↗
14. Millot N., Xin B., Pighini C., Aymes D., (2005). Hydrothermal synthesis of nanostructured inorganic powders by a continuous process under supercritical conditions. J. Europ. Ceram. Soc. 25: 2013–201610.1016/j.jeurceramsoc.2005.03.202 ↗
15. Minnear W.P., Bradt R.C., (1977). Elastic properties of polycrystalline TiO2-x . J. Amer. Ceram. Soc. 60: 458–45910.1111/j.1151-2916.1977.tb15532.x ↗
16. Mockel H., Giersig M., Willig F., (1999). Formation of uniform size anatase nanocrystals from bis(ammonium lactato)titanium dihydroxide by thermohydrolysis. J. Mater. Chem. 9: 3051–305610.1039/a905373e ↗
17. Musić S., Gotić M., Ivanda M., Popović S., Turković A., Trojko R., Sekulić A., Furić K., (1997). Chemical and microstructural properties of TiO2 synthesized by sol–gel procedure. Mater. Sc. Eng. B 47: 33–4010.1016/S0921-5107(96)02041-7 ↗
18. Navrotsky A., (2003). Energetics of nanoparticle oxides: interplay between surface energy and polymorphism. Geochem. Trans. 4(6):34–3710.1186/1467-4866-4-34 ↗
19. Parker J.C., Siegel R.W., (1990). Calibration of the Raman spectrum to the oxygen stoichiometry of nanophase TiO2. Appl. Phys. Lett 57: 943–94510.1063/1.104274 ↗
20. Pottier A., Cassaignon S., Chanéac C., Villain F., Tronc E., Jolivet J., (2003). Size tailoring of TiO2 anatase nanoparticles in aqueous medium and synthesis of nanocomposites. Characterization by Raman spectroscopy. J. Mater. Chem. 13:877–88210.1039/b211271j ↗
21. Richter H., Wang Z.P., Ley L., (1981). The one phonon spectrum in microcrystalline silicon. Solid State Comm. 39: 625–62910.1016/0038-1098(81)90337-9 ↗
22. Takagahara T., (1993). Electron–phonon interactions and excitonic dephasing in semiconductor nanocrystals. Phys. Rev. Lett. 71: 3577–358010.1103/PhysRevLett.71.3577 ↗
23. Tang J., Redl F., Zhu Y., Siegrist T., Brus L.E., Steigerwald M.L., (2005). An organometallic synthesis of TiO2 nanoparticles. Nano Lett. 5: 543–54810.1021/nl047992h ↗
24. Zhang H., Banfield J.F., (1998). Thermodynamic analysis of phase stability in nanocrystalline titania. J. Mater. Chem. 8(9): 2073–207610.1039/a802619j ↗
25. Zhang Y., Chan C., Porter J., Guo W., (1998). Micro-Raman spectroscopic characterization of nanosized TiO2 powders prepared by vapor hydrolysis. J. of Mater. Res. 13: 2602–260910.1557/JMR.1998.0363 ↗
26. Zhang W.F., Zhang M.S., Yin Z., Chen Q., (2000). Photoluminescence in anatase titanium dioxide nanocrystals. Appl. Phys. B 70: 261–26510.1007/s003400050043 ↗
27. Znaidi L., Seraphimova R., Bocquet J., Colbeau-Justin C. and Pommier C., (2001). A semi-continuous process for the synthesis of nanosize TiO2 powders and their use as photocatalysts. Mater. Res. Bull. 36: 811–82510.1016/S0025-5408(00)00482-7 ↗