CAJ | 학술논문

采用水热法制备了钙钛矿型化合物Ag-NbO3晶体,对化合物进行粉末X射线表征。Rietveld精修结果表明化合物AgNbO3属于三方晶系,空间群为R-3C。并对化合物进行了扫描电子显微镜（SEM）、BET法测定比表面积和对固体紫外漫反射光谱进行表征。对该化合物的光催化性质进行了测试,在可见光照射下降解染料龙胆紫。结果表明此化合物在室温下具有很高的光催化性质,在光催化性能方面具有潜在的应用价值。
채용수열법제비료개태광형화합물Ag-NbO3정체,대화합물진행분말X사선표정。Rietveld정수결과표명화합물AgNbO3속우삼방정계,공간군위R-3C。병대화합물진행료소묘전자현미경（SEM）、BET법측정비표면적화대고체자외만반사광보진행표정。대해화합물적광최화성질진행료측시,재가견광조사하강해염료룡담자。결과표명차화합물재실온하구유흔고적광최화성질,재광최화성능방면구유잠재적응용개치。
The perovskite-type AgNbO3 crystals was prepared by mild hydrothermal method and determined by powder X-ray diffraction. Rietveld refinements indicate that AgNbO3 crystallize in trigonal system with space group R-3C. The compounds were characterized by scanning electron microscopy （SEM）, brunauer-emmet-tell- er surface area （BET）, XPS, FT-IR and UV-Vis diffuse reflectance spectra （UV-Vis DRS）. The photocatalytic activity of AgNbO3 powders were evaluated by degradation of gentian violet under visible-light irradiation. The results show that the titled compounds have high photocatalytic activity at room temperature and potential fu- ture applications in photocatalysis.