Synthesis of Flower-Like Nanoparticles of Anatase Titania by Microwave Solvo-Hydrothermal Method

doi:10.1007/s40195-013-0227-4

Abstract

Abstract:

Anatase titania nanoparticles with an average size of about 14 nm were synthesized by microwave solvothermal method from TiCl₄ and ethanol as a precursor and solvent respectively. The shapes of as prepared samples were modified by microwave hydrothermal treatment in strongly alkaline medium at 100℃ for 2 h, the agglomerate particles can be converted to the nanorods then to flower-like sphere. The structure, morphology and optical properties of as-prepared powders were investigated by X-ray diffraction, scanning electron microscopy and UV-vis absorption spectroscopy, the quality of the samples was examined by IR absorption spectroscopy and room temperature photoluminescence (PL). The results showed that the synthesized TiO₂ revealed the formation of the nanorods and the flower-like shape of titania after post treatment in 5 mol/L and 10 mol/L NaOH solution, respectively. IR absorption spectra showed that the as-prepared TiO₂ nanocrystals were highly pure and strongly surface hydrated, The photoluminescence measurement showed that five main emission peaks appeared in UV, violet, blue and green regions.

Key words: Titanium dioxide, Microwave hydrothermal, Alkaline medium, Flower-like, Photoluminescence

S. Mahmoudi,S. Boudjadar. Synthesis of Flower-Like Nanoparticles of Anatase Titania by Microwave Solvo-Hydrothermal Method[J]. Acta Metallurgica Sinica (English Letters), DOI: 10.1007/s40195-013-0227-4.

References

[1]A. Hagfeldt and M. Gratzel, Chem. Rev.95(1995) 49.
[2]S. Sakthivel and H. Kisch, Angew. Chem. Int. Ed.42(2003) 4908.
[3]R.K. Sharma, M.C. Bhatnagar and G.L. Sharma, Sens.Actuat. B Chem.46(1998) 194.
[4]K. Luchi, Y. Ohko, T. Tatsuma and A. Fujishima, Chem.Mater.16(2004) 1165.
[5]A. Mills and S. Le Hunte, J. Photochem. Photobiol. A Chem.108(1997) 1.
[6] J. Aguado, R. van Grieken, M.J. Lopez-Munoz and J.marugan, Catal. Today.75(2002) 95.
[7]K.M. Reddy, C.V.G. Reddy and S.V. Manorama, J. Solid State Chem.158(2001) 180.
[8] B. Samuneva, V. Kozhukharqv, C. Trapalis and R. Kranold,J. Mater. Sci.28(1993) 2353.
[9]K.S. Mazdiyasni, C.T. Lynch and J.S. Smith, J. Am.Ceram. Soc.48(1965) 372.
[10]Y. Qian, Q. Chen, Z. Chen, C. Fan and G. Zhou, J. Mater.Chem.3(1993) 203.
[11]H. Cheng, J. Ma and L. Qi, Chem. Mater.7(1995) 663.
[12]S. Ito, T.N. Murakami, P. Comte, P. Liska, C. Gratzel, M.K. Nazeeruddin and M. Gratzel, Thin Solid Films 516(2008)4613.
[13] Y.V. Kolen'ko, V.D. Maximov, A.V. Garshev, P.E. Meskin,N.N. Oleynikov, and B.R. Churagulov, Chem. Phys. Lett.388(2004) 411.
[14] J.G. Yu, G.H. Wang, B. Cheng and M.H. Zhou, Appl. Catal.B: Environ.69(2007) 171.
[15] S. Cho, D.S. Shim, S.H. Jung, E. Oh, B.R. Lee and K.H.Lee, Mater. Lett.63(2009) 739.
[16] T. Thongtem, A. Phuruangrat and S. Thongtem, Ceramics Int.36(2010) 257.
[17] J.W. Shi, J.T. Zheng, Y. Hu and Y.C. Zhao, Mater. Chem.Phys.106(2007) 247.
[18] A.M. Peiro, J. Peral, C. Domingo, X. Momenech and J.A.Ayllon, Chem. Mater.13(2001) 2567.
[19] T. Bezrodna, G. Puchkovska, V. Shimanovska, I.Chashecnikova, T. Khalyavka and J. Baran, Appl. Surf. Sci.214(2003) 222.
[20] G.S. Li, L.P. Li, J. Boerio-Goates and B.F. Woodfield,J. Am. Chem. Soc.127(2005) 8659.
[21] B. Oregan and M. Gratzel, Nature353(1991) 737.
[22] J.G. Yu, H.G. Yu, C.H. Ao, S.C. Lee, J.C. Yu and W.K. Ho,Thin Solid Films496(2006) 273.
[23] F.B. Li and X.Z. Li, Appl. Catal. A Gen.228 (2002) 15.
[24] K. Fujihara, S. Izumi, T. Ohno and M. Matsumura, J.Photochem. Photobiol. A Chem.132(2000) 99.
[25] N. Serpone, D. Lawless and R. Khairutdinov, J. Phys.Chem.99(1995) 16646.
[26] F.B. Li and X.Z. Li, Appl. Catal. A Gen.228(2002) 15.
[27] T. Toyoda, T. Hayakawa, K. Abe, T. Shigenari and Q. Shen,J. Lumin.87-89(2000) 1237.
[28] D. Huang, S. Liao, J. Liu, Z. Dang and L. Petrik, J.Photochem. Photobiol. A184(2006) 282.