在硫酸介质中,Ti4+与H2O2生成桔黄色络合物,选出最佳测定波长为400 nm;研究了酸度、显色剂用量、显色时间及共存离子对测定结果的影响.结果表明,钛在0～10.5 μg/mL范围内遵守朗伯比尔定律,其表观摩尔吸光系数为1.73×103 L/(mol·cm).此方法简便、准确,用于锌基TiO2纳米微粒复合镀层中TiO2共析量的测定是可行的.
参考文献
| [1] | Michael R. Hoffmann;Scot T. Martin;Wonyong Choi;Detlef W. Bahnemann .Environmental Applications of Semiconductor Photocatalysis[J].Chemical Reviews,1995(1):69-96. |
| [2] | Mills A;Lehunte S .An overview of semiconductor photocatalisis[J].Journal of Photochemistry and Photobiology A:Chemistry,1997,108(01):1-35. |
| [3] | Rosana M. Alberici;Wilson F. Jardim .Photocatalytic destruction of VOCs in the gas-phase using titanium dioxide[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,1997(1/2):55-68. |
| [4] | Fujishima A .Titanium dioxide photocatalisis[J].Journal of Photochemistry and Photobiology C:Photochemistry Reviews,2000,1(01):1-21. |
| [5] | Deguchi T.;Imai K. .Photocatalytically Highly Active Nanocomposite Films Consisting of TiO_2 Particles and ZnO Whiskers Formed on Steel Plates[J].Journal of the Electrochemical Society,2000(6):2263-2267. |
| [6] | Deguchi T.;Matsui H.;Iwasaki M.;Tada H.;Ito S.;Imai K. .Rapid electroplating of photocatalytically highly active TiO2-Zn nanocomposite films on steel[J].Journal of Materials Science,2001(19):4723-4729. |
| [7] | Zhou M;Lin W Y;Tacconi N R et al.Metal/semiconductor electrocomposite photoelectrodes behavior of Ni/TiO2 photoanodes and comparison of photoactivity of anatase and rutile modifications[J].Journal of Electroanalytical Chemistry,1996,402:221-224. |
| [8] | 黄新民,钱利华,吴玉程,朱泓.纳米颗粒TiO2化学复合镀层的功能特性[J].金属功能材料,2004(02):16-19. |
| [9] | 张文峰,朱荻,薛玉君,赵飞.Ni-SiC纳米复合电镀工艺的研究[J].电镀与环保,2004(04):10-13. |
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%