Titanium oxide that has the photocatalytic activity is used as the white pigment for cosmetics. A certain degree of sebum on the skin is decomposed by the ultraviolet radiation in sunlight. In this work, as a novel white pigment, titanium phosphates were prepared from titanium sulfate and phosphoric acid at pH 5, 7, and 9, with/without ultrasonic treatment for cosmetics. Their chemical composition, powder properties, photocatalytic activity, color phase, moisture retention, and smoothness were studied. These titanium phosphates had less photocatalytic activity to protect the sebum on the skin. Sample prepared at pH 7 without ultrasonic treatment had higher moisture retention than other samples. All samples obtained in this work had the suitable smoothness for cosmetics.
[1] Diebold, U. (2003) The Surface Science of Titanium Dioxide. Surface Science Report, 48, 53-229.
http://dx.doi.org/10.1016/S0167-5729(02)00100-0
[2] Senzuki, M., Tamura, T., Miura, K., Ikarashi, Y., Watanabe, Y. and Fujii, M. (2010) Study on Penetration of Titanium Dioxide (TiO2) Nanoparticles into Intact and Damaged Skin in Vitro. The Journal of Toxicology Science, 35, 107-113.
http://dx.doi.org/10.2131/jts.35.107
[3] Gamer, A.O., Leibold, E. and Van Ravenzwaay, B. (2006) The in Vitro Absorption of Microfine Zinc Oxide and Titanium Dioxide Through Porcine Skin. Toxicology in Vitro, 20, 301-307.
http://dx.doi.org/10.1016/j.tiv.2005.08.008
[4] Jones, D.J., Aptel, G., Brandhorst, M., Jacquin, M., Jimenez-Jimenez, J., Jimenez-Lopez, A., Maireles-Torres, P., Piwonski, I., Rodrigues-Castellon, E., Zajac, J. and Roziere, J. (2000) High Surface Area Mesoporous Titanium Phosphate: Synthesis and Surface Acidity Determination. Journal of Materials Chemistry, 10, 1957-1963.
http://dx.doi.org/10.1039/B002474K
[5] Bhaumik, A. and Inagaki, S. (2001) Titanium Phosphate Molecular Sieves with Ion-Exchange Capacity. Journal of American Chemical Society, 123, 691-696.
http://dx.doi.org/10.1021/ja002481s
[6] Onoda, H. and Yamaguchi, T. (2012) Influence of Ultrasonic Treatment on Preparation and Powder Properties of Titanium Phosphates. Journal of Materials Chemistry, 22, 19826-19830.
http://dx.doi.org/10.1039/C2JM33952H
[7] Onoda, H., Yamaguchi, T. and Takenaka, A. (2012) Synthesis and Pigmental Properties of Titanium Phosphates with the Addition of Urea. International Journal of Cosmetic Science, 34, 86-90.
http://dx.doi.org/10.1111/j.1468-2494.2011.00685.x
[8] Raynaud, S., Champion, E., Bernache-Assollant, D. and Thomas, P. (2002) Calcium Phosphate Apatites with Variable Ca/P Atomic Ratio I. Synthesis, Characterisation and Thermal Stability of Powders. Biomaterials, 23, 1065-1072.
http://dx.doi.org/10.1016/S0142-9612(01)00218-6
[9] Cai, Y., Pan, H., Xu, X., Hu, Q., Li, L. and Tang, R. (2007) Ultrasonic Controlled Morphology Transformation of Hollow Calcium Phosphate Nanospheres: A Smart and Biocompatible Drug Release System. Chemistry of Materials, 19, 3081-3083.
http://dx.doi.org/10.1021/cm070298t
[10] Jung, S.H., Oh, E., Lim, H., Shim, D.S., Cho, S., Lee, K.H. and Jeong, S.H. (2009) Shape-Selective Fabrication of Zinc Phosphate Hexagonal Bipyramids via a Disodium Phosphate-Assisted Sonochemical Route. Crystal Growth and Design, 9, 3544-3547.
http://dx.doi.org/10.1021/cg900287h
[11] Ramaswamy, V., Jagtap, N. B., Vijayanand, S., Bhange, D.S. and Awati, P.S. (2008) Photocatalytic Decomposition of Methylene Blue on Nanocrystalline Titania Prepared by Different Methods. Materials Research Bulletin, 43, 1145-1152.
http://dx.doi.org/10.1016/j.materresbull.2007.06.003
[12] Du, P., Bueno-Lopez, A., Verbaas, M., Almeida, A.R., Makkee, M., Moulijn, J.A. and Mui, G. (2008) The Effect of Surface OH-Population on the Photocatalytic Activity of Rare Earth-Doped P25-TiO2 in Methylene Blue Degradation. Journal of Catalysis, 260, 75-80.
http://dx.doi.org/10.1016/j.jcat.2008.09.005
[13] Cheng, S.Y., Yuen, C.W.M., Kan, C.W., Cheuk, K.K.L., Tang, J.C.O. and Li, S.Y. (2009) A Comprehensive Study of Silicone-Based Cosmetic Textile Agent. Fibers and Polymers, 10, 132-140.
http://dx.doi.org/10.1007/s12221-009-0132-7