【摘要】 钨酸铋作为Aurivillius型结构中最简单的化合物之一，具有较好的物理及化学性能，在可见光范围内有良好的光吸收能力，是一种新型可见光催化剂。以硝酸铋为铋源、钨酸钠为钨源、乙二醇为溶剂，使用水热法制备了旋钮状钨酸铋，通过扫描电子显微镜(SEM)、能谱(EDS)、X射线衍射(XRD)等表征了钨酸铋半导体的形貌、表面化学组成和晶体结构，探究了实验参数对钨酸铋形貌的影响，并据此提出了可能的生长机制。更多还原

【Abstract】 Bi₂WO₆ is one of the simplest members of the layered Aurivillius-related oxide family. It has good physical and chemical properties. Bi₂WO₆ possesses promising photo-absorption properties in visible range. It′s a new visible light catalyst. In this paper, knob Bi₂WO₆micro nano materials were prepared by hydrothermal method with Bi（NO₃）₃·5 H₂O as bismuth source, Na₂WO₄·2 H₂O as tungsten source and ethylene glycol as solvent. The morphology, surface chemical composition and crystal structure of Bi₂WO₆ were characterized by SEM, EDS, XRD, etc. According to the influence of experimental parameters on the morphology of Bi₂WO₆, the possible formation mechanism of knob-like Bi₂WO₆ micro nano materials was discussed.更多还原