| Nowadays, the issue of Green Chemisty has been wildly concerned. According to the principle of Green Chemisty and the demand of Quartz Crystal Microbalance (QCM) technology, a kind of low temperature and template free hydrothermal method has been created. The highest hydrothermal temperature can be controlled as lower as120℃and reaction time not more than3hours by reaction conditions adjusting. Comparing to the traditional hydrothermal method, which often has as highest as about250℃hydrothermal temperature and above24hours reaction time, it’s a both energy saving and environment friendly method. Five sorts of elements, Sn, Fe, Zr, La and Mg, have been choosed because of their average locations in Element Periodic Table. Their five relative nano-oxides, SnO2,Fe2O3, ZrO2, La2O3and MgO, have been synthesized by the novel hydrothermal method. Then the X Ray Diffraction (XRD) and Scanning Electron Microscope (SEM) technologys have been applied to characterize them. The conclusion shows that the products have good rate surface area and promised morphology.Based on the QCM technology, the five kinds of nano-oxides were used as the sensing film materials and Dimethyl Methyl Phosphonate (DMMP) sensors were fabricated for the room temperature detection. The crucial parameters of the sensors, such as repeated response, sensive degree and selectivity, have been obtained. DMMP is a kind of fire proof reagent and is sdudied as a simulatent of warfare gas sarin usually because of their similar molecule structure. The experimental results of our work can give some significant advices to the sarin sensor and also can provide basic data support for the future sensor array of DMMP with the different materials as the sensing films.In addition, comparing experiments of synthsis and sensor sdudy to the five main nano-oxides have performed too. Some useful conclusions have been acquired from the analysis of their experimental data. |
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