载铂二氧化钛对3B艳红染料溶液光催化降解性能的研究

STUDY OF THE CATALYTIC PROPERTY OF Pt/TiO_2 TO THE PHOTOCATALYSIS OF DYES

本文以载铂 Ti O2 为催化剂 ,光催化降解可溶性染料 ;对引起染料 3B艳红脱色的作用机理进行了分析并探讨了铂的担载量、催化剂的重复使用性、染料水溶液的 p H值、光源波长、H2 O2 的添加等因素对催化降解效果的影响。结果表明 ,Ti O2 表面担载适宜量的金属铂后 ,对染料降解的催化活性有了明显提高 ;酸性溶液和添加适量的 H2 O2 均有利于催化降解。

The photocatalytic degradation of soluble dyes over Pt/TiO 2, the reaction mechanism and the effect of some factors on photocatalysis's results, such as, the loading amount of Pt over TiO 2, the reuse of catalyst, the pH of dying solution, the wave length of light sources and the additive of H 2O 2. The results showed that the catalytic action of TiO 2 remarkably improved loading amount of Pt. Both acid condition and the additive of H 2O 2 are beneficial to dyes's photocatalysis.