摘要
文章介绍了具有合成H2O2 和光催化性能的双功能新型复合电极,并用X-射线衍射,SEM等方法进行了表征. 双功能复合电极是将TiO2/C光催化剂负载在具有合成H2O2性能的新型载体上形成的. 在光反应器中,复合电极作阴极,钌—钛不溶性电极作阳极,低压汞灯作光源,实现了光化学氧化与光催化氧化在同一电极/溶液界面上的联合作用. 实验结果表明,复合电极对提高偶氮染料分子活性艳红(K-2BP)的氧化降解速度起了重要作用,仅反应3min ,脱色率可达49%,80min,偶氮染料分子可降解47%.
A novel composite electrode which have functions of synthesizing H2O2 and photocatalysis was reported and characterized by X-rays and SEM. This double function composite electrode was prepared by loading photocatalyst TiO2/C on a novel carrier which can synthesize H2O2. In photo reactor, the composite electrode used as cathode, Ru-Ti electrode used as anode, lower pressure Hg lamp used as light source. Combining oxidation of photochemistry and photocatalysis exists at the same interface of electrode-solution. The experiment results showed that the composite electrode played important role in enhancing the oxidation rate of azo dye molecule, namely,in 3 min, the decolorizing rate could reach about 49%, and removing COD rate could reach about 47% only in 80 min.
出处
《襄樊学院学报》
2001年第5期53-58,共6页
Journal of Xiangfan University
基金
国家自然科学基金(20071026)资助项目
