| BiVO4/SiO2复合材料的制备及光学性能 |
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| 引用本文： | 次立杰,张绍岩,张玉军.BiVO4/SiO2复合材料的制备及光学性能[J].人工晶体学报,2010,39(3):797-801. |
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| 作者姓名： | 次立杰 张绍岩 张玉军 |
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| 作者单位： | 石家庄学院化工学院,石家庄,050035;山东大学材料液固结构演变与加工教育部重点实验室,济南,250061;石家庄学院化工学院,石家庄,050035;山东大学材料液固结构演变与加工教育部重点实验室,济南,250061 |
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| 基金项目： | 河北省科学技术研究与发展计划项目 |
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| 摘 要： | 以Bi(NO3)3 、NH4VO3 和Na2SiO3为原料,采用沉淀法制备了BiVO4/SiO2复合材料.利用扫描电镜(SEM)、X 射线衍射(XRD)及紫外-可见光吸收测试(UV-vis)对样品的晶相组成、微观结构和紫外-可见光吸收特性进行了表征.紫外-可见光吸收光谱分析表明:BiVO4/SiO2复合材料具有较宽的紫外-可见光吸收范围,计算其光学带隙为2.39 eV.光催化降价亚甲基蓝性能测试表明:BiVO4包覆SiO2能有效提高其催化性能.
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| 关 键 词： | BiVO4/SiO2 复合材料 光学带隙 光催化降解 |
Preparation and Optical Properties of BiVO_4/SiO_2 Composite |
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| CI Li-jie,ZHANG Shao-yan,ZHANG Yu-jun.Preparation and Optical Properties of BiVO_4/SiO_2 Composite[J].Journal of Synthetic Crystals,2010,39(3):797-801. |
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| Authors: | CI Li-jie ZHANG Shao-yan ZHANG Yu-jun |
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| Institution: | CI Li-jie1,2,ZHANG Shao-yan1,ZHANG Yu-jun2(1.College of Chemical Engineering,Shijiazhuang University,Shijiazhuang 050035,China,2.Key Laboratory for Liquid-solid Structural Evolution , Processing of Materials,Ministry of Education,Sh,ong University,Jinan 250100,China) |
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| Abstract: | BiVO4/SiO2 composites were fabricated by a simple and facile chemical precipitation process using Bi(NO3)3,NH4VO3 and Na2SiO3 as raw materials.The microstructure,phase composition and UV-visible absorption properties of the as-synthesized BiVO4/SiO2 composites were investigated by scanning electron microscopy,X-ray diffraction and UV-visible absorption spectra.UV-visible absorption measurements show that the as-prepared BiVO4/SiO2 composites present a broad absorption peak in a wide range from UV to visible... |
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| Keywords: | BiVO4/SiO2 |
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