UV-shielding and catalytic characteristics of nanoscale zinc-cerium oxides

Abstract

Fine particles of zinc-cerium oxides (ZCO) used as an ultraviolet filter were prepared via combustion synthesis route. The catalytic activity, UV-shielding performance, surface modification and application of ZCO in polyester varnish were discussed in detail. The experimental results indicate that the photo-catalytic activity of ZCO is much smaller than these of ZnO and TiO₂; the oxidation catalytic activity of ZCO is far lower than that of CeO₂; the ZCO has shown excellent ultraviolet absorption in the range of UV; addition modified ZCO (MZCO) into polyester will enhance the UV-shielding capability of polyester.

Keywords

nanoscale zinc-cerium oxides / photo-catalysis / oxidation catalysis / UV-shielding ability / surface modification

References

[1] Zhao X., Yang S., Zhao J., . Preparation and UV Shielding Characteristic of ZnO-coated Ultrafine TiO₂ Particles[J]. Chemical Journal of Chinese University, 2000, 21(11): 1617-1620.

[2] Ma M., Ma C., Chen X., . Effectively Preventing Skin Damage of UV Radiation on Garments[J]. China Surfactant Detergent & Cosmetic, 1999, 1(5): 46-51.

[3] Zhang P., Zhou D., Liu H. Study and Preparation of Skin-color Titanium-dioxide in Cosmetic[J]. China Surfactant Detergent & Cosmetic, 2002, 32(1): 29-30.

[4] Jing L., Xu Z., Sun X., . Photocatalytic Activity of ZnO and TiO₂ Particles and Their Deactivation and regeneration[J]. Chinese Journal of Catalysis, 2003, 24(3): 175-180.

[5] Zhang H., Li X., Pan Z., . Application and Preparation on Liquid Phrase Method of Nanometer CeO₂[J]. Chemical Engineer, 2002, 89(2): 36-38.

[6] Yao H. C., Yao Y. F. Ceria in automotive Exhaust Catalysts[J]. J. Catal, 1984, 86(2): 254-259.

[7] Golunski S. E., Hatcher H., Rajaram R. R., . Origins of Low-Temperature three-way Activity in Pt/CeO₂ [J]. Appl. Catal. B, 1995, 5(4): 367-376.

[8] Chai X. UV Sunscreen and Catalytic Characteristics of Nanoscale Zinc and Cerium Oxides[D], 2004. Kunming: Kunming University of Science and Technology.

[9] Ruixing Li, Shinryo Yabe, Mika Yamashita, et al. Synthesis and UV-shielding Properties of ZnO-and CeO₂ via Soft Solution Chemical Process[J]. Solid State Ionics, 2002,(151):235–241

[10] Ruixing Li, Shinryo Yabe, Mika Yamashita, et al. UV-shielding Properties of Zinc Oxide-doped Ceria Fine Powders Derived via Soft Solution Chemical Routes[J]. Materials Chemistry and Physics, 2002,(75):39–44

[11] Guo Y., Liu X., Zhang X., . Study on Surface Modification of Nanometer TiO₂[J]. Inorganic Chemical Industry, 2003, 25(3): 25-26.

[12] Xu Z., Du Y., Shang J., . The Heterogeneous Photocatalysis Reaction of Heptanes on TiO₂, ZnO[J]. Environment Chemistry, 2002, 21(5): 465-470.

[13] Hosaka N, Sekiya T, Fujisawa M,et al. Spectra Related Phenol[J]. J. Elect.,1996,(78):75–78

[14] Xu S., Yang P., Du B., . Progress in Research on Photocatalytic Performance of Doped-TiO₂[J]. Chemical Research and Application, 2003, 15(2): 146-150.

[15] Zhang L., Mu J. Nanometer Material and Structure[M], 2001. Peking: Science Press. 88

[16] Xu X., Wang G., Luo Y., . Preparation of Nanometer TiO₂ and Photocatalytic Activity[J]. Chemical Research and Application, 2000, 12(1): 14-19.

[17] Pan J., Tian M. The Foundation of Material Science[M], 2000. Peking: Tsinghua University Press. 55

[18] Gu Q., Lou S., Dai Q., . Chemical Table[M], 1979. Nanjing: Jingsu Technology Press. 362-366.

[19] Liu H., Yang L., Zhang S., . The Synthesis of Inorganic Material[M], 2003. Peking: Chemical Industry Press. 78-79.

[20] Diffey B. L., Tanner P. R., Matts P. J., . In vitro Assessment of the Broad-spectrum Ultraviolet Protection of Sunscreen of Products[J]. J. Am. Acad. Dermatol., 2000, 43(6): 1024-1035.