摘要
利用可见光响应型TiO2光催化剂对由酸性品红和酸性橙Ⅱ、酸性绿B和酸性橙Ⅱ组成的双组分染料进行光催化降解,采用联立方程法求解混合组分中每一组分染料的浓度,以一级动力学反应速率为考查指标,研究双组分染料的光催化降解。结果表明,增加某一组分的浓度,两个组分的降解速率都会受到抑制,但是自抑制作用明显强于它抑制作用。
The binary mixtures of three dyes with acid fuchsine, acid orange II and Green B are decolorized with visible light-activated TiO2. The concentration of each dye in the mixture is calculated via simultanious equations. Taking the pseudo-first-order kinetics reaction rate as the indicator, the photo catalytic degradation of the binary mixture is analyzed. The results show that the degradation rate of the two dyes will be inhibited with the increase in the concentration of the acid dye in the mixture. The self inhibition effect is significantly stronger than that of other-party inhibition.
出处
《印染》
北大核心
2012年第21期13-16,共4页
China Dyeing and Finishing
关键词
酸性染料
光催化
降解
二氧化钛
acid dyes
photocatalytic
degradation
titanium dioxide
