Photocatalytic Cement by TiO₂ Addition

Abstract:

Photocatalytically active TiO2 and silica doped TiO₂ (Si-TiO₂) synthesised using an aqueous sol-gel method and is characterised by particle size analysis, XRD, diffuse reflectance spectra and BET measurements. The photocatalytic analysis using methylene blue proved that the Si-TiO₂ possesses higher activity than pure TiO₂. This Si-TiO₂ having higher photo-catalytic activity was incorporated into white portland cement and this modified cement exhibited photo-catalytic activity as evaluated by using methylene blue degradation experiments. This novel work is considered to be useful for further development of self-cleaning cements. Moreover silica doped to TiO₂ improved surface area and thermal stability of anatase TiO₂ significantly. At 800 ^оC, 100 percentage anatase phase was obtained for Si-TiO₂ whereas pure TiO₂ showed 100 percentage rutile phase at the same temperature and surface aera of the Si-TiO₂ was 93 m²/g while pure TiO₂ showed only 2 m²/g.

• Periodical: Materials Science Forum (Volume 712)
• Pages: 65-72
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.712.65
• Online since: February 2012
• Authors: Pradeepan Periyat, A.S. Divya, K.G.K. Warrier
• Keywords: Anatase, Cement, Photocatalyst, Sol-Gel (SG), TiO₂

References

[1] A. Fujishima, K. Honda, Nature, 238 (1972) 37-38.

[2] X. Chen, S. S. Mao, Chem Rev; 107 (2007) 2891-2959.

[3] P. Periyat, K.V. Baiju, P. Mukundan, P. K. Pillai, K. G. K. Warrier, J. Sol-Gel Tech, 43 (2007) 299-304.

DOI: 10.1007/s10971-007-1583-1

[4] S. C. Pillai, P. Periyat, R. George, D. E. McCormack, M.K. Seery, H. Hayden, J. Colreavy, D. Corr, S. J. Hinder, J. Phys Chem C, 111 (2007) 1605-1611.

DOI: 10.1021/jp065933h

[5] R. J. Tayade, P. K. Surolia, M. A. Lazar, R. V. Jasra, Ind. Eng. Chem. Res. 47 (2008) 7545–7551.

[6] R. J. Tayade, H.C. Bajaj, R.V. Jasra, Ind. Eng. Chem. Res. 45 (2006) 5231-5238.

[7] T. S. Natarajan, M. Thomas, K. Natarajan, H. C. Bajaj, R. J. Tayade, Chem. Eng. J. 169 (2011) 126–134.

[8] R. J. Tayade, H.C. Bajaj, R.V. Jasra, Desalination 275 (2011) 160–165.

[9] D. J. Reidy, J. D. Holmes, C. Nagle, M. A. Morris, J. Mater. Chem. 15 (2005) 3494-3500.

[10] P. Periyat, D.E. Mccormack, S. J. Hinder, S. C. Pillai, J. Phys. Chem. C, 113 (2009) 3246-3253.

[11] P. Periyat, D. E. Mccormack, J. Colreavy, S. J. Hinder, S. C. Pillai, J. Phys. Chem. C, 112 (2008) 7644-7652.

[12] K. V. S Rao, B. Zhuo, J. M. Cox, K. Chiang, M. Brungs, R. Amal, J. Biomed. Nanotech., 2 (2006) 71-73.

[13] I. P. Parkin, R. G. Palgrave, J. Mater. Chem., 15 (2005) 1689-1695.

[14] A. Fujishima, X. Zhang, D. A. Tryk, Surf. Sci. Reports, 63 (2008) 515-582.

[15] M. Machinda, W.K. Norimoto, T. Kimura, J. Am. Ceram. Soc., 88 (2005) 95-100.

[16] M. Lackhoff, X. Prieto, N. Nestle, F. Dehn, R. Niessner, App. Catal. B: Environ., 43 (2003) 205-216.

[17] A. M. Ramirez, K. Demeestere, N. D. Belie, T. Mantyla, E. Levanen, Build. Environ., 45 (2010) 832–838.

[18] M. Maeda, S. Yamasaki, Thin solid films, 483 (2005) 102-106.

[19] P. Periyat, K. V. Baiju, P. K. Pillai, P. Mukundan, K. G. K. Warrier, Appl. Catal. A., 349 (2008) 13-19.

[20] R. J. Tayade, P. K. Surolia, R. G. Kulkarni, R. V. Jasra, Sci. Tech. Adv. Mater., 8, (2007) 455-462.

[21] K.V. Baiju, P. Periyat, P. Mukundan, P. K. Pillai, K. G. K. Warrier, Mater Lett., 61 (2007) 1751-1755.

[22] P. Cheng, M. Zheng, Y. Jin, Q. Huang, M. Gu, Mater. Lett., 57 (2002) 2989–2994.

[23] X. Gao, I. E. Wachs, Catal. Today, 51 (1999) 233-254.

[24] C. Anderson, A. J. Bard, J. Phys. Chem. 99 (1995) 9882-9985.

[25] W. Su, J. Zhang, Z. Feng, T. Chen, P. Ying, C. J. Li, J. Phys. Chem. C, 112 (2008) 7710-7716.

[26] K. Hadjivanov, Appl Surf Sci., 135 (1998) 331-338.

[27] D.C. Hurum, A. G. Agrios, K. A. Gray, J. Phys. Chem. B, 107 (2003) 4545-4549.