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采用自蔓延高温合成-喷射法制备了SnO2纳米线和SnO2/Zn2SnO4纳米结构,利用XRD、SEM、UV-vis和FT-IR对其物相、形貌和谱学性质进行了表征。结果表明:SnO2纳米线凝胶对紫外-可见光的透光度随着SnO2纳米线加入量的增加而增加,但是,SnO2/Zn2SnO4凝胶对紫外-可见光的透光度却随着SnO2/Zn2SnO4的增加而减少;与SnO2纳米线相比,SnO2/Zn2SnO4在1090,1430,1640,3450cm-14个特征波长附近对红外光谱的选择吸收率明显提高,因而对H2O、CH4、CO和CO2等气体的敏感性将显著增强。
The SnO2 nanowires and SnO2 / Zn2SnO4 nanostructures were prepared by self-propagating high temperature synthesis-jet method. Their phases, morphology and spectroscopic properties were characterized by XRD, SEM, UV-vis and FT-IR. The results showed that the transmittance of UV-visible light on SnO2 nanowire gel increased with the increase of the amount of SnO2 nanowires. However, the transmittance of SnO2 / Zn2SnO4 gel to UV-visible light increased with the increase of SnO2 / Zn2SnO4 Increase and decrease; compared with SnO2 nanowires, SnO2 / Zn2SnO4 in the vicinity of 1090,1430,1640,3450cm-14 characteristic wavelength of the selective absorption rate of the infrared spectrum increased significantly, and thus for H2O, CH4, CO and CO2 gas Sensitivity will be significantly enhanced.