【摘要】 围绕目前常用的处理化学污染的方法存在效率低、易产生二次污染、消耗能量高等问题,针对现在被人们普遍关注的具有能隙窄、可见光催化活性高等优点的新型可见光响应型光催化材料钒酸饿（BiVO₄）,提出采用水热法合成BiVO₄光催化材料,通过对合成的样品进行XRD、SEM表征,以罗丹明B为催化降解剂,添加物质的量比不同的CTAB。在可见光下,探究BiVO₄的光催化活性性能。实验研究表明,反应物物质的量比n（Bi）∶n（V）∶n（CTAB）是1∶1∶1,温度180℃、时间24h的条件下可制备出结晶良好的片状BiVO₄晶体,且制备的样品具有最优的光催化性能。更多还原

【Abstract】 There are problems such as low efficiency,secondary pollution and high energy consumption in the commonly used methods to deal with chemical pollution.Bismuth vanadate（BiVO₄）,as a new photocatalytic material responsive to visible light,has been widely concerned due to its advantages of narrow energy gap and high visible light catalytic activity.In this paper,BiVO₄ photocatalytic materials are synthesized by hydrothermal synthesis,and the synthesized samples are characterized by XRD and SEM.Rhodamine B is used as the catalytic degradation agent,and CTAB with different mole ratios has been added to explore the photocatalytic activity of BiVO₄ in visible light.Experimental study shows that with the conditions of the ratio of reactants n（Bi）∶n（V）∶n（CTAB）=1∶1∶1,the temperature is 180 ℃,the time of 24 h,good flake BiVO₄ crystals can be prepared with good crystallization,and the preparation sample has the best photocatalytic propertiy.更多还原