基于MOFs衍生金属氧化物/碳材料构建的甲基对硫磷传感器MOFs-derived Metal Oxide/Carbon Materials Modified Electrode as a Sensor for Determination of Methyl Parathion
杨玉香;李枚珊;游建勇;陈乃华;陈前火;马秀玲;
摘要(Abstract):
合成了以对苯二甲酸为配体的MIL-125 (Ti)和UiO-66 (Zr),并以其为前驱体,分别制备了TiO_2/C_(1000)、ZrO_2/C_(1000)纳米材料.利用X射线衍射仪、扫描电镜、气体吸附仪对材料进行物相、形貌、比表面积的研究.结果表明:ZrO_2/C_(1000)主要表现为介孔材料,而TiO_2/C_(1000)为明显的微/介孔材料.采用循环伏安法对比TiO_2/C_(1000)、ZrO_2/C_(1000)纳米材料修饰玻碳电极(GCE)检测甲基对硫磷(MP)的电化学行为,结果表明BET较小的TiO_2/C_(1000)对MP有较好的检测效果.最优条件下,MP在TiO_2/C_(1000)/GCE上的线性范围为2~40μg·m L(-1),检测限为1. 27μg·m L(-1),检测限为1. 27μg·m L(-1)(S/N=3).
关键词(KeyWords): 甲基对硫磷;电化学传感器;金属有机框架;热解衍生物
基金项目(Foundation): 国家自然科学基金资助项目(21573042);; 福建省自然科学基金资助项目(2018J07001);; 平潭综合试验区环境与国土资源局项目(DH-1374)
作者(Authors): 杨玉香;李枚珊;游建勇;陈乃华;陈前火;马秀玲;
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