CaTi_2O_4(OH)_2添加不同分散剂的结构分析与光催化性能研究

Analysis on Structure and Photocatalytic Properties of CaTi_2O_4(OH)_2 Synthesized with Different Dispersants

利用水热法合成了添加不同分散剂的CaTi_2O_4(OH)_2纳米片状结构,讨论了不同分散剂对CaTi_2O_4(OH)_2片状结构光催化性能的影响,通过X射线衍射(XRD)、扫描电镜(SEM)和紫外-可见(UV-Vis)光谱等分析测试技术对产物的微观结构和光学性能进行分析,以罗丹明B为降解对象,研究了添加不同分散剂的CaTi_2O_4(OH)_2对罗丹明B的降解情况。结果表明,添加不同分散剂后产物沿(040)与(251)面取向性生长为片状结构。通过对罗丹明B的降解情况可知,当加入3%的碳酸钠时所制备的CaTi_2O_4(OH)_2的催化活性最高为94.7%。

In this study, CaTi2O4（OH）2 nanosheet structure was prepared by hydrothermal method. The influence of different dispersants on photocatalytic properties of CaTi2O4（OH）2 was investigated. The microstructure and optical properties of the samples were characterized by X-ray diffraction（XRD）, scanning electron microscopy（SEM） and Uv-vis absorption spectroscopy. CaTi2O4（OH）2 added with different dispersants in the degradation of rhodamine B was studied. The results show that adding different of dispersants, it is helpful for the growth of lamellar structure of CaTi2O4（OH）2 with the preferential growth habit on the（040） and（251） planes. According to the degradation of rhodamine B, when adding 3% sodium carbonate, the prepared CaTi2O4（OH）2 has the highest catalytic activity was 94.7%.