溶液燃烧法制备纳米SnO_2粉末及其荧光性能

Synthesis and photoluminescence properties of SnO_2 powder by solution combustion method

通过溶液燃烧法制备了纳米SnO2粉末,使用XRD、SEM、BET等仪器研究了柠檬酸、硝酸铵添加量及煅烧温度对产物的影响。并且在柠檬酸与Sn摩尔比为2∶1,硝酸铵与Sn摩尔比为12∶1,煅烧温度600℃的情况下得到了结晶度较好、粒径约为33nm的纯净SnO2粉末。通过紫外光谱及荧光仪分析了产物的紫外波段的吸收峰及光致发光性能,最终在激发波长为436nm时,在553、661nm获得了两处激发峰。

SnO2 powder was synthesized by solution combustion method without annealing process. The specimens prepared with different citric acid/Sn, NH NO/Sn ratio, and calcined temperature were characterized by X-ray diffraction （XP, D）, scanning electron microscopy （SEM） ,fourier transform infrared spectrometry, ultraviolet spectrometer （UV） and photoluminescence spectra （PL）. With the optimal citric acid/Sn ratio of 2,NH NO/Sn ratio ratio of 12, calcined at 600℃, SnO2 powder with 33nm grain size, showing the highest XRD peak, UV absorptionrelatively pure and better luminescence property was obtained. Two peaks at 553 and 661 nm in PL spectra were obtained.