Bi_2O_3纳米片的水相一步合成及其光催化性能  

One-step aqueous synthesis of Bi_2O_3 nanosheets and their photocatalytic activity

作　　者：金光德[1] 王轶[1] 

机构地区：[1]延边大学理学院化学系,吉林延吉133002

出　　处：《延边大学学报（自然科学版）》2015年第1期34-36,共3页Journal of Yanbian University（Natural Science Edition）

摘　　要：以Bi(NO_3)_3·5H_2O为原料,NaOH为沉淀剂,丙三醇为控制剂,采用水相一步沉淀法在90℃的温度下制备了厚度约为5 nm的Bi_2O_3纳米片.利用X射线衍射(XRD)、扫描电镜(SEM)、紫外-可见(UV-vis)漫反射(DRS)吸收光谱、紫外-可见分光光度计对样品的结构形貌和光催化性能进行了表征和分析.结果表明,所得产物为单斜结构的纳米片,且具有较好的可见光催化性能.Bi2 O3 nanosheets were synthesized by precipitating bismuth nitrate with sodium hydroxide under one-step aqueous process at 90 ℃ in the presence of glycerol.The thickness of Bi2 O3 nanosheets was about 5 nm.The crystal structure,morphology and photocatalytic activity of the product were characterized by X-ray diffraction （XRD）,scanning electron microscope （SEM）,UV-visible diffuse reflectance spectrum （UV-vis DRS）and UV-vis spectrophotometer.The results indicated that the product was nanosheets with monoclinic structure and had better performance on visible light photocatalysis.

关 键 词：Bi2O3纳米片 水相一步法 光催化 

分 类 号：N55[自然科学总论]