| 一种新的光致变色膜：Na2WO4-PAA-Glycerol体系研究 |
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| 引用本文： | 尚通明,贺竞辉,韩敏,石乃恩,徐正. 一种新的光致变色膜：Na2WO4-PAA-Glycerol体系研究[J]. 无机化学学报, 2007, 23(1): 124-127 |
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| 作者姓名： | 尚通明 贺竞辉 韩敏 石乃恩 徐正 |
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| 作者单位： | 1. 南京大学配位化学国家重点实验室,南京,210093;江苏技术师范学院贵金属深加工及应用江苏省重点建设实验室,常州,213001
2. 南京大学配位化学国家重点实验室,南京,210093 |
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| 基金项目： | 国家自然科学基金;江苏省自然科学基金 |
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| 摘 要： | A method for preparing Na2WO4-PAA-Glycerol photochromic films was reported. The film was composed of Na2WO4, PAA and Glycerol, which were coated on a glass substrate. The film turned blue in the sun, and bleached to transparent in the darkness. The UV-Visible spectra showed strong absorbance at 300～500 nm, and the ABS changed signifanctly at 500～800 nm. The film showed the best photochromic behavior when nNa2WO4∶nPAA is 4%～5%. The mechanism was suggested that after irradiation, poly tunstate produced by Na2WO4 and PAA formed the tungsten blues. The tungsten blues were bleached due to oxidation back to poly tunstate by oxygen. The film showed not only an excellent photochromism property with rapid response and good reversibility, but also the simple techniques and good stability.
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| 关 键 词： | WO3； 多钨酸盐； 光致变色； PAA； 智能窗 |
| 文章编号： | 1001-4861(2007)01-0124-04 |
| 修稿时间： | 2006-09-16 |
A New Photochromic Film: Na2WO4-PAA-Glycerol System |
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| SHANG Tong-Ming,HE Jing-Hui,HAN Min,SHI Nai-En and XU Zheng. A New Photochromic Film: Na2WO4-PAA-Glycerol System[J]. Chinese Journal of Inorganic Chemistry, 2007, 23(1): 124-127 |
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| Authors: | SHANG Tong-Ming HE Jing-Hui HAN Min SHI Nai-En XU Zheng |
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| Abstract: | A method for preparing Na2WO4-PAA-Glycerol photochromic films was reported. The film was composed of Na2WO4, PAA and Glycerol, which were coated on a glass substrate. The film turned blue in the sun, and bleached to transparent in the darkness. The UV-Visible spectra showed strong absorbance at 300~500 nm, and the ABS changed signifanctly at 500~800 nm. The film showed the best photochromic behavior when Nna2wo4is 4%~5%. The mechanism was suggested that after irradiation, poly tunstate produced by Na2WO4 and PAA formed the tungsten blues. The tungsten blues were bleached due to oxidation back to poly tunstate by oxygen. The film showed not only an excellent photochromism property with rapid response and good reversibility, but also the simple techniques and good stability. |
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| Keywords: | tungsten oxide poly tunstate photochromism PAA smart window |
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