摘要
以Bi(NO3)3·5H2O和(C4H9O)4Ti为原料,分别以柠檬酸、乙酸、EDTA为络合剂,采用溶胶-凝胶法制备了Bi4Ti3O12,探讨了不同络合剂对所得粉体组成和光催化性能的影响.结果表明,以柠檬酸为络合剂时,600℃煅烧即可得到均匀分布的纯相Bi4Ti3O12粉末;以乙酸为络合剂时,800℃煅烧才可得到纯相Bi4Ti3O12.但是在600℃煅烧温度下,以乙酸为络合剂的产物的光催化性能最强,经紫外光照射120 min,对罗丹明B降解率达到了84%.
With Bi （NO3）3·5H2O and （C4H9O）4Ti as raw material, Bi4Ti3O12 powders was synthesized by Sol-Gel process with eomplexant of citric acid, acetic acid, EDTA as complexing agent respectively. The influence on obtained powders composition and photocatalytic properties were studied in different complexant. The results show that Bi4Ti3Ol2 powders could he synthesised at 600 ℃ with citric acid while he prepared at 800 ℃ with aerie acid as the complexing agent. And BigTi3O12 powders prepared with acetic acid owns the best photoeatalytic properties at the same calcination temperature; its Rhodamine B degradation reached 82% by UV irradiation in 120 min.
出处
《宁夏工程技术》
CAS
2015年第1期43-46,49,共5页
Ningxia Engineering Technology
基金
国家民委科研项目(12BFZ001)
宁夏自然科学基金资助项目(NZ12204)
