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设计了一种简单的水热合成法合成晶型可控的立方结构的α-Fe_2O_3,通过扫描电子显微镜,透射电子显微镜,和X射线衍射对所制备产物的结构和形态特征进行了分析。制备的立方结构的α-Fe_2O_3的尺寸范围在130~150 nm之间。研究结果表明,α-Fe_2O_3纳米材料作为一种有效的光催化剂,在过氧化氢存在的条件下可以用来光催化降解废水中的有机物(如罗丹明B),这为设计和开发高效率可见光催化剂在去除工业废水中有机染料的应用提供了新的探索和基础。
A simple hydrothermal method was used to synthesizeα-Fe_2O_3 with controlled crystal structure. The structure and morphology of the product were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction. The cubic structure of α-Fe_2O_3 has a size range of 130 ~ 150 nm. The results show that α-Fe 2 O 3 nanomaterials can be used as a photocatalyst to photocatalytically degrade organics (such as rhodamine B) in the presence of hydrogen peroxide in the presence of hydrogen peroxide. This is a good choice for the design and development of high efficiency visible light The catalyst provides a new exploration and foundation for the removal of organic dyes in industrial wastewater.