摘要
纳米ZnO材料因特殊的禁带宽度和开放性结构,易掺杂其他金属或者非金属元素,具有良好的催化性能。本文通过溶胶-凝胶法,制备了Fe、Ce单复合掺杂纳米ZnO粉体,对样品进行了表征分析,并以甲基橙为目标降解物,测定了单复合掺杂纳米氧化锌粉体在不同紫外光催化下的性能,考察了紫外灯强度、光照时间对催化效率的影响。结果表明,相比纯的纳米ZnO粉体、Fe、Ce单复合掺杂纳米ZnO的降解效果更好。当催化剂用量为3g/L、在紫外灯30W光照下、光照时间为4h,Fe/Ce共掺杂纳米ZnO材料的降解率可达12.31%。
Nano-Zn O material has good catalytic properties because of the special band gap width and open structure and it is easy to doping other metals or non-metallic elements. In this paper,Ce、Fe doped Zn O and Ce、Fe co-doped Zn O nanopowders were synthesized by using sol-gel method. Structure of nano-Zn O materials were characterized by XRD and the photocatalytic activity of these materials were studied by degrading methyl orange solution at different irradiation of ultraviolet light. Moreover,intensity of ultraviolet light and illumination time were investigated. The results showed that the photocatalytic properties of Fe/Ce co-doped Zn O were better than those of Zn O,Fe-doped,Ce-doped. Moreover,The degradation rate of Fe/Ce co-doped Zn O was 12.31%. When amount of catalyst was 3 g/L and illumination time was 4 hours,the photocatalytic properties were better at the irradiation of 30 W ultraviolet light.
出处
《功能材料与器件学报》
CAS
2018年第1期79-84,共6页
Journal of Functional Materials and Devices
关键词
纳米氧化锌
掺杂
光催化性能
降解
甲基橙
ZnO
doping
photocatalytic properties
degradation
methyl orange
