以钛酸异丙酯和硝酸锶为原料,通过炭吸附沉淀法制备纳米钛酸锶(SrTiO3)催化剂.通过热重/差热仅(TG-DTA)、X射线衍射仪(XRD)、透射电镜(TEM)和紫外可见光谱仪(UV-Vis)等对所得催化剂的煅烧温度、物相、微粒尺寸及光吸收性能进行表征.结果表明:炭黑的吸附有效阻止了钛酸锶催化剂在制备过程中的团聚和烧结,煅烧温度为700℃时,SrTiO3粒子分散均匀,粒径小,没有明显的团聚现象,平均晶粒尺寸为22 nm,比表面积为78.64m2/g.对亚甲基蓝的光催化反应结果表明,在60 min内亚甲基蓝在SrTiO3催化剂上几乎完全分解.
参考文献
| [1] | Liu JW;Chen G;Li ZH;Zhang ZG .Electronic structure and visible light photocatalysis water splitting property of chromium-doped SrTiO3[J].International Journal of Quantum Chemistry,2006(12):3704-3708. |
| [2] | Wang JS.;Yin S.;Zhang QW.;Saito F.;Sato T. .Mechanochemical synthesis of SrTiO3-xFx with high visible light photocatalytic activities for nitrogen monoxide destruction[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2003(9):2348-2352. |
| [3] | Yuan-Fu Deng;Zhao-Hui Zhou .A stable water-soluble molecular precursor for the preparation of stoichiometric strontium titanate[J].Inorganic Chemistry Communications,2008(9):1064-1066. |
| [4] | Preparation and photocatalytic properties of strontium titanate powders via sol-gel process[J].Journal of Crystal Growth,2009(3):746. |
| [5] | 潘红梅,何翔.纳米钛酸锶粉体的制备及光催化研究[J].佛山陶瓷,2006(10):4-6. |
| [6] | 辛钢,郭威,马廷丽.熔盐法制备钛酸锶的光解水研究[J].大连理工大学学报,2011(01):20-24. |
| [7] | 蒋勤,吴艳波,张守臣,于兴和.溶胶-凝胶法制备钛酸锶粉体及其光催化性能的研究[J].工业催化,2006(12):60-63. |
| [8] | 张昊,畅柱国,崔斌.化学共沉淀法制备钛酸锶纳米粉体新工艺[J].电子元件与材料,2009(06):12-15. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%