层状过渡金属含氧酸盐与功能色素复合及电催化性能研究

发布时间：2018-01-09 12:18

本文关键词：层状过渡金属含氧酸盐与功能色素复合及电催化性能研究　出处：《中国矿业大学》2015年硕士论文　论文类型：学位论文

【摘要】：无机层状材料由于其独特的层状主体结构以及层间离子的可交换性,可以使不同的有机分子通过离子交换进入层间而不改变其层状结构,并且保证了较高的稳定性。这些有机-无机插层复合材料在吸附、分离、电化学催化、化学传感器和生物传感器等方面体现出了良好的性能。本文以Bi2Sr Ta2O9、Li Nb Mo O6、Li Nb WO6和Li Ta WO6为主体材料,以水溶性金属卟啉(Mn TMPy P和Fe TMPy P)和亚甲基蓝(MB)为客体材料,合成插层复合材料并对其性质进行表征与测试。本文主要内容概括如下:1.利用高温固相合成法制备了Bi2Sr Ta2O9、Li Nb Mo O6、Li Nb WO6和Li Ta WO6等主体材料,并通过XRD、IR和SEM等手段对其进行表征。2.采用客体-客体离子交换的方法将水溶性金属卟啉(Mn TMPy P和Fe TMPy P)以及亚甲基蓝(MB)成功插入到Bi2Sr Ta2O9、Li Nb Mo O6、Li Nb WO6和Li Ta WO6的层间。并用XRD、IR、UV-vis和SEM等手段对插层复合材料的结构、形貌和性质进行表征。3.采用简单滴涂法制备Mn TMPy P-Sr Ta2O7/GCE、Fe TMPy P-Nb Mo O6/GCE、MB+-Nb WO6/GCE和MB+-Ta WO6/GCE修饰电极,利用循环伏安法和脉冲伏安法测试修饰电极在磷酸盐缓冲溶液中对氧气和抗坏血酸的电化学催化性能。结果显示修饰电极存在良好的稳定性,并且对氧气的还原和抗坏血酸的氧化有明显的催化作用。
[Abstract]:Because of its unique layered host structure and interlayer ion exchangeability, inorganic layered materials can make different organic molecules enter the interlayer without changing their layered structure through ion exchange. These organic-inorganic intercalation composites are adsorbed, separated and electrochemical catalyzed. Chemical sensors and biosensors showed good properties. In this paper, Bi2Sr Ta2O9 and Li NB MoO6 were used. Li NB WO6 and Li Ta WO6 were used as host materials and water soluble metalloporphyrins mn TMPy P and Fe TMPy P) and methylene blue blue MBs were used as guest materials. The intercalation composites were synthesized, characterized and tested. The main contents of this paper are summarized as follows: 1. Bi2Sr Ta2O9 LiNb MoO6 was prepared by high temperature solid state synthesis. The main materials, such as Li NB WO6 and Li Ta WO6, pass through XRD. Ir and SEM were used to characterize them. 2. Water soluble metalloporphyrins mn TMPy P and Fe TMPy P and methylene blue (mn TMPy P and Fe TMPy P) were characterized by the method of guest guest ion exchange. MBs successfully inserted into the Bi2Sr Ta2O9. The interlaminar structure of Li NB WO6 and Li Ta WO6 was studied by means of SEM and SEM. The morphology and properties were characterized. 3. Mn TMPy P-Sr Ta2O7 / GCE-Fe TMPy P-Nb Mo O 6 / GCE was prepared by simple drop coating method. MB NB WO6/GCE and MB Ta WO6/GCE modified electrodes. The electrochemical catalytic performance of modified electrode for oxygen and ascorbic acid in phosphate buffer solution was tested by cyclic voltammetry and pulse voltammetry. The results showed that the modified electrode had good stability. And it can catalyze the reduction of oxygen and oxidation of ascorbic acid.
【学位授予单位】：中国矿业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TB33

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