| 金属-有机骨架[Zn(BDC)(H2O)2]n膜的原位制备及其对硝基苯类有机物的可逆检测 |
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| 引用本文： | 李宗群,张敏,薛文,裘灵光.金属-有机骨架[Zn(BDC)(H2O)2]n膜的原位制备及其对硝基苯类有机物的可逆检测[J].发光学报,2011,32(5):514-518. |
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| 作者姓名： | 李宗群 张敏 薛文 裘灵光 |
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| 作者单位： | 1. 蚌埠学院 应用化学与环境工程系, 安徽 蚌埠 233000;
2. 安徽大学化学化工学院 先进多孔材料实验室, 安徽 合肥 230039 |
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| 基金项目： | 安徽省教育厅自然科学基金，国家自然科学基金，教育部新世纪优秀人才支持计划 |
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| 摘 要： | 采用水热法,将锌片与对苯二甲酸(H2BDC)反应原位合成Zn(BDC)(H2O)2]n薄膜.利用XRD和SEM分别对薄膜的结构、形貌和尺寸等进行了表征.结果表明,薄膜是由一维链状结构的金属-有机骨架材料纳米晶构成的,随着水热时间的增加,薄膜中的Zn(BDC)(H2O)3]n纳米晶晶粒尺寸逐渐减小.该薄膜在紫外光的激...
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| 关 键 词： | 金属-有机骨架 原位制备 薄膜 荧光猝灭 传感 |
| 收稿时间： | 2010-11-12 |
In-situ Preparation of Metal-organic Framework[Zn(BDC)(H_2O)_2]_n Films and Reversible Detection of Nitrobenzenes |
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| LI Zong-qun,ZHANG Min,XUE Wen,QIU Ling-guang.In-situ Preparation of Metal-organic Framework[Zn(BDC)(H_2O)_2]_n Films and Reversible Detection of Nitrobenzenes[J].Chinese Journal of Luminescence,2011,32(5):514-518. |
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| Authors: | LI Zong-qun ZHANG Min XUE Wen QIU Ling-guang |
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| Institution: | 1. Department of Applied Chemistry and Environmental Engineering, Bengbu College, Bengbu 233000, China;
2. Laboratory of Advanced Porous Materials, School of Chemistry and Chemical Engineering, Anhui University, Hefei 230039, China |
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| Abstract: | Zn(BDC)(H2O)]n metal-organic framework films have been synthesized on the surface of zinc substrate by a hydrothermal reaction between zinc slice and 1,4-benzenedicarboxylic acid (H2BDC) at 140 ℃ for different reaction times. The films were characterized and analyzed with X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The results showed that the films were constructed from nano- or microcrystals of Zn(BDC)(H2O)2]n, a one-dimensional zig-zag type MOF. With increasing the hydrothermal reaction time, the particle sizes reduced gradually and then the nanoscaled crystals of Zn(BDC)-(H2O)2]n films were obtained after 12 h. The formation mechanism of the films on the zinc substrate was preliminarily discussed. All samples of the films exhibited strong solid state fluorescence at room temperature with an emission maximum at 395 nm under excitation of 332 nm. Strong fluorescence quenching of the films was observed due to energy transfer between nitrobenzene quenchers and the MOFs chains through the electrostatic interaction. Fluorescence quenching efficiency increased linearly with the concentration of nitrobenzene in 0.25‰~2%, which indicate this film has a high efficiency, fast response,and reversible for nitrobenzene. |
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| Keywords: | metal-organic frameworks in-situ preparation thin films fluorescence quenching sensor |
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