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基于 ZnO 修饰纳米线结构二氧化锰薄膜的 QCM 二甲膦酸传感器研究。

Study of a QCM dimethyl methylphosphonate sensor based on a ZnO-modified nanowire-structured manganese dioxide film.

机构信息

National Key Laboratory of Industrial Control Technology, Department of Control Science and Engineering, Zhejiang University, Hangzhou 310027, China.

出版信息

Sensors (Basel). 2010;10(9):8275-90. doi: 10.3390/s100908275. Epub 2010 Sep 2.

DOI:10.3390/s100908275
PMID:22163653
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3231230/
Abstract

Sensitive, selective and fast detection of chemical warfare agents is necessary for anti-terrorism purposes. In our search for functional materials sensitive to dimethyl methylphosphonate (DMMP), a simulant of sarin and other toxic organophosphorus compounds, we found that zinc oxide (ZnO) modification potentially enhances the absorption of DMMP on a manganese dioxide (MnO(2)) surface. The adsorption behavior of DMMP was evaluated through the detection of tiny organophosphonate compounds with quartz crystal microbalance (QCM) sensors coated with ZnO-modified MnO(2) nanofibers and pure MnO(2) nanofibers. Experimental results indicated that the QCM sensor coated with ZnO-modified nanostructured MnO(2) film exhibited much higher sensitivity and better selectivity in comparison with the one coated with pure MnO(2) nanofiber film. Therefore, the DMMP sensor developed with this composite nanostructured material should possess excellent selectivity and reasonable sensitivity towards the tiny gaseous DMMP species.

摘要

为了反恐目的，对化学战剂进行敏感、选择性和快速的检测是必要的。在寻找对二甲氨基甲基膦酸酯（DMMP）敏感的功能材料的过程中，DMMP 是沙林和其他有毒有机磷化合物的模拟物，我们发现氧化锌（ZnO）修饰可能会增强 DMMP 在二氧化锰（MnO(2)）表面上的吸收。通过使用涂有 ZnO 修饰的 MnO(2)纳米纤维和纯 MnO(2)纳米纤维的石英晶体微天平（QCM）传感器检测微小的有机磷酸酯化合物来评估 DMMP 的吸附行为。实验结果表明，与涂有纯 MnO(2)纳米纤维膜的 QCM 传感器相比，涂有 ZnO 修饰的纳米结构 MnO(2)薄膜的 QCM 传感器具有更高的灵敏度和更好的选择性。因此，用这种复合纳米结构材料开发的 DMMP 传感器应该对微小的气态 DMMP 具有优异的选择性和合理的灵敏度。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9bf/3231230/c593c4dbf6e4/sensors-10-08275f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9bf/3231230/ff9e4e3d9195/sensors-10-08275f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9bf/3231230/8c6e580ccf4c/sensors-10-08275f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9bf/3231230/540664a3695a/sensors-10-08275f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9bf/3231230/4c0cf3835817/sensors-10-08275f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9bf/3231230/c99bf6f04934/sensors-10-08275f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9bf/3231230/513bab5c0cfd/sensors-10-08275f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9bf/3231230/36f3f62c4f45/sensors-10-08275f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9bf/3231230/c593c4dbf6e4/sensors-10-08275f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9bf/3231230/ff9e4e3d9195/sensors-10-08275f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9bf/3231230/8c6e580ccf4c/sensors-10-08275f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9bf/3231230/540664a3695a/sensors-10-08275f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9bf/3231230/4c0cf3835817/sensors-10-08275f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9bf/3231230/c99bf6f04934/sensors-10-08275f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9bf/3231230/513bab5c0cfd/sensors-10-08275f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9bf/3231230/36f3f62c4f45/sensors-10-08275f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9bf/3231230/c593c4dbf6e4/sensors-10-08275f8.jpg

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