| 纳米ZnO/TiO2复合颗粒制备及紫外屏蔽性能研究 |
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| 引用本文： | 金名惠,张家新.纳米ZnO/TiO2复合颗粒制备及紫外屏蔽性能研究[J].华中科技大学学报(自然科学版),2005,33(2):119-121. |
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| 作者姓名： | 金名惠 张家新 |
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| 作者单位： | 华中科技大学,化学系,湖北,武汉,430074;华中科技大学,化学系,湖北,武汉,430074 |
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| 摘 要： | 以Ti(SO4)2和Zn(AC)2为原料，在制备金红石型纳米TiO2粉体的基础上，用溶胶凝胶法制得纳米ZnO／TiO2复合粉体．实验结合纳米TiO2和纳米ZnO的优点制得一种广谱防晒剂．TEM显示该复合颗粒为核一壳式结构；XRD分析该复合颗粒内核为金红石型TiO2，表面包覆一层六方晶系ZnO且该复合颗粒中存在强的化学键．UV-Vis测试表明该复合颗粒在整个紫外区的吸收能力达到85％，在UVA(320-400nm)区吸收性能比纯的TiO2强得多．
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| 关 键 词： | 广谱防晒剂 纳米ZnO/TiO2 复合颗粒 紫外吸收性能 |
| 文章编号： | 1671-4512(2005)02-0119-03 |
| 修稿时间： | 2004年7月5日 |
Preparation of ultra-fine ZnO/TiO2 and characterization of broad spectrum sunscreen |
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| Jin Minghui,Zhang Jiaxin.Preparation of ultra-fine ZnO/TiO2 and characterization of broad spectrum sunscreen[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2005,33(2):119-121. |
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| Authors: | Jin Minghui Zhang Jiaxin |
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| Institution: | Jin Minghui Zhang Jiaxin Assoc. Prof., Dept. of Chemistry,Huazhong Univ. of Sci. & Tech.,Wuhan 430074,China. |
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| Abstract: | The ZnO/TiO_2 Composite particles were prepared by sol-gel with Ti(SO_4)_2, Zn(AC)_2 as raw material. The surface structure of ZnO/TiO_2 samples was characterized by IR, TEM, XRD. The result indicates that the average diameter of ZnO/TiO_2 is 50?nm. and there is a chemical bond in ZnO and TiO_2. The UV shielding characteristic is investigated by UV-Vis. The UV shielding capability of ZnO/TiO_2 was higher than that of rutile ultra-fine TiO_2 in UVA region, and its shielding rate was to 85?% in UVA and UVB region, that prove the composite particle has a prosperous applied future as a broad spectrum sunscreen. |
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| Keywords: | broad spectrum sunscreen nanometer ZnO/TiO_2 composite particle ultraviolet light absorption |
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