基于La_(2)O_(3)/Nd_(2)O_(3)纳米材料的催化发光丙酮传感器

Cataluminescence acetone sensors based on La_(2)O_(3)/Nd_(2)O_(3)nanomaterials

采用水热法成功制备了La_(2)O_(3)/Nd_(2)O_(3)纳米材料,并构建了一种新型的基于La_(2)O_(3)/Nd_(2)O_(3)纳米材料的丙酮催化发光传感器。采用扫描电子显微镜(SEM)、X射线衍射仪(XRD)、X射线光电子能谱仪(XPS)对La_(2)O_(3)/Nd_(2)O_(3)的形貌、结构、化学组成等进行表征。在优化条件下,丙酮传感器的催化发光强度与丙酮浓度在5~35 mmol/L范围内有良好的线性关系,线性方程为y=1729.43x+1444.43,相关系数(R^(2))为0.9981,检出限(LOD)为4.34×10^(-5)mol/L,相对标准偏差(RSD)为2.5%。

La_(2)O_(3)/Nd_(2)O_(3)nanomaterials were successfully prepared by hydrothermal method.A novel acetonecataluminescence sensor based on La_(2)O_(3)/Nd_(2)O_(3)nanomaterials was constructed.The morphology,crystal structure and chemical composition of La_(2)O_(3)/Nd_(2)O_(3)were characterized by scanning electron microscopy(SEM),X-ray diffractometry(XRD)and X-ray photoelectron spectroscopy(XPS).Under the optimized conditions,there was a good linear relationship between the cataluminescence intensity and the concentration of acetone in the range of5-35 mmol/L.The calibration curve was y=1729.43x+1444.43,the correlation coefficient(R^(2))was 0.9981,the limit of detection(LOD)was 4.34×10^(-5)mol/L,and the relative standard deviation(RSD)was 2.5%.