摘要:本论文以钛酸四丁酯为原材料,选择无水乙醇作为溶剂,通过比较最终选择了更简洁方便的水热法制备了纳米BaTiO3。通过对制备物纳米BaTiO3粉末进行X-射线衍射(XRD)试验,对纳米BaTiO3在高压汞灯下催化的亚甲基蓝溶液进行紫外-可见吸收光谱(UV-Vis)试验,以及对制备物的扫描电镜(SEM)试验,对其结构进行了表征。制备的样品BaTiO3颗粒在亚甲基蓝溶液中进行充分溶解,并在高压汞灯照射下对亚甲基蓝溶液实施光催化降解实验。实验结果显示采用该方法制备的BaTiO3属于纳米级立方型,而且对亚甲基蓝溶液在高压汞灯照射下的光催化率比在一般条件下要高许多,降解率达到99 %左右。41145 毕业论文关键词:水热法;纳米钛酸钡;光催化;亚甲基蓝
The Preparation of Nano- BaTiO3 by Hydrothermal Method and The Study on Its Photology Performance
Abstract: In this paper, four butyl titanate as raw material, choose anhydrous ethanol as the solvent, through the screening of the final selection of more concise and convenient hydrothermal method to prepare nano BaTiO3. On the preparation of nanometer BaTiO3 powder by of X-ray diffraction (XRD) test, nano BaTiO3 under high pressure mercury lamp catalyzed by methylene blue solution by UV - visible absorption spectroscopy (UV VIS) test, and on the preparation of scanning electron microscopy (SEM) test. The structure was characterized. Preparation of samples of BaTiO3 particles in the methylene blue solution were fully dissolved, and under high pressure mercury lamp irradiation of methylene blue solution implementation of photocatalytic degradation experiments. Experimental results show that belongs to the nanometer cubic type employed in the preparation method of BaTiO3, but also for the methylene blue solution under the irradiation of high pressure mercury lamp light catalytic rate than in the general conditions is much higher, the degradation of methylene blue solution rate is almost 99 %.
Key Words: Hydrothermal Method; Nano- BaTiO3; Photocatalysis; Methylene Blue
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