| 纳米氧化锌表面包覆二氧化硅的性能研究 |
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| 引用本文： | 邱文杰,才红,张永利. 纳米氧化锌表面包覆二氧化硅的性能研究[J]. 当代化工, 2010, 39(3): 242-244 |
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| 作者姓名： | 邱文杰 才红 张永利 |
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| 作者单位： | 韩山师范学院化学系,广东,潮州,521041;韩山师范学院化学系,广东,潮州,521041;韩山师范学院化学系,广东,潮州,521041 |
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| 基金项目： | 韩山师范学院青年基金 |
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| 摘 要： | 采用直接沉淀法制备了纳米ZnO,以ZnSO4·7H2O和Na2CO3为原料,并用硅酸钠水解生成的SiO2对其进行了表面包覆改性。通过采用红外吸收光谱（FT-IR）,X射线衍射（XRD）对改性前后的ZnO进行表征。结果表明,ZnO表面形成的包覆物是以非晶态形式存在的,改性后纳米ZnO对紫外光的屏蔽性能有所下降,光催化活性明显下降,进一步证明了纳米ZnO颗粒表面存在二氧化硅包覆层,使纳米ZnO稳定化。
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| 关 键 词： | 纳米氧化锌 二氧化硅 包覆 表面改性 |
Property Research of Nano-ZnO Coated by Silica on Its Surface |
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| QIU Wen-jie,CAI Hong,ZHANG Yong-li. Property Research of Nano-ZnO Coated by Silica on Its Surface[J]. Contemporary Chemical Industry, 2010, 39(3): 242-244 |
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| Authors: | QIU Wen-jie CAI Hong ZHANG Yong-li |
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| Affiliation: | (Department of Chemistry,Hanshan Normal University,Guangdong Chaozhou 521041,China) |
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| Abstract: | ZnO nanoparticles were prepared from ZnSO4·7H2O and Na2CO3 by precipitation method,and the sur-faces were coated by SiO2,which was obtained by the hydrolysis of Na2SiO3.Both the coated and uncoated ZnO nanoparticles were characterized by FT-IR,XRD.The results show that the coated layer on ZnO suiface is amor-phous after modification,UV screen and photocatalytic performance are decreased,which further illustrated that SiO2has been coated on the surface of ZnO anoparticlesto stablize it. |
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| Keywords: | Nano-ZnO SiO2 Coated Surface modification |
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