非整比纳米TiO_(2-X)膜光催化降解水中微量卤代烃

STUDY ON PHOTODEGRADATION OF MINIM HALOHYDROCARBON IN WATER BY NONSTOICHIOMETRIC NANO TiO_(2-X) MEMBRANE

采用溶胶 -凝胶法在石英板上经可控热处理制备出非整比 Ti O2 - X膜 ,膜中晶粒具有纳米结构特征 .在臭氧氧化条件下用无机非整比纳米 Ti O2 - X膜光催化氧化饮用水中微量卤代烃 ,结果表明 ,该方法可使卤代烃的降解率在 99.9%以上 ,适用于饮用水的深度处理 .

Nonstoichiometric TiO 2 X membrane can be prepared on quartz plate under controllable heat treatment condition by the method of sol gel.The membrane crystal has nano structure.The membrane is used as catalyst to degrade minim halohydrocarbon in drinking water,meanwhile ozonation is applied too.By this way the degradation rate is above 99.9% The experimental results indicate that this method suitable for drinking water treatment.