| 有色粉体材料对太阳辐射吸收性能的UV-Vis-NIR光谱法表征 |
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| 引用本文： | 郭洪猷,李秀艳,吴念祖,王平.有色粉体材料对太阳辐射吸收性能的UV-Vis-NIR光谱法表征[J].高等学校化学学报,2003,24(8):1482-1484. |
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| 作者姓名： | 郭洪猷 李秀艳 吴念祖 王平 |
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| 作者单位： | 1. 北京化工大学材料科学与工程学院, 北京 100029;
2. 北京服装学院材料工程系, 北京 100029;
3. 北京大学分子动态与稳态结构国家重点实验室, 北京 100871 |
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| 基金项目： | 国家重点基础研究发展规划项目 (批准号 :G2 0 0 0 775 0 3)，分子动态与稳态结构国家重点实验室开放基金资助 |
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| 摘 要： | 进一步研究了粉体材料对太阳辐射吸收能力的定量表征方法.结果表明,当Vcolored/V(TiO2)(有色粉体与TiO2的体积比)<5%时,lg(1/R)(R是试样对太阳辐射的反射率)和Vcolored/V(TiO2)呈直线关系.从直线的斜率和截距可得出粉体材料的吸光系数和最大穿透厚度.该方法具有普遍性,适用于各种有色粉体的测定.
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| 关 键 词： | 粉体材料 紫外-可见-近红外反射光谱 吸光系数 |
| 文章编号： | 0251-0790(2003)08-1482-03 |
| 收稿时间： | 2002-04-23 |
UV-Vis-NIR Reflectance Spectra Characterization of Absorptance Properties of Colored Powdery Materials |
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| GUO Hong-You ,LI Xiu-Yan ,WU Nian-Zu ,WANG Ping.UV-Vis-NIR Reflectance Spectra Characterization of Absorptance Properties of Colored Powdery Materials[J].Chemical Research In Chinese Universities,2003,24(8):1482-1484. |
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| Authors: | GUO Hong-You LI Xiu-Yan WU Nian-Zu WANG Ping |
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| Institution: | 1. College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China;
2. Department of Materials Engineering, Beijing Institute of Clothing Technology, Beijing 100029, China;
3. State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Peking University, Beijing 100871, China |
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| Abstract: | UV-Vis-NIR reflectance spectra were used to characterize the absorptivities of colored powdery materials to solar radiation. It was found that the plots of lg(1/R)(R means the reflectance of coating to solar radiation) against V colored/V(TiO 2)(volume ratio of the colored powdery materials to TiO 2) were straight lines in the range of V colored/V(TiO 2) less than 0.05. From the slopes and intercepts of the straight lines, the absorption coefficients and the maximum depth of penetration can be measured quantitatively. The method can be applied to characterization of the colored powdery materials. |
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| Keywords: | Powdery materials UV-Vis-NIR reflectance spectra Absorption coefficients |
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