中文会议： 第六届中国国际纳米科技研讨会论文集

会议日期： 2007-01-01

会议地点： 成都

主办单位： 中国微米纳米技术学会

作　　者： ; ; ; ;

机构地区： 中南大学物理与电子学院

出　　处： 《第六届中国国际纳米科技研讨会》

摘　　要： THE LANTHANUM-DOPED TIO2 THIN FILMS ON GLASS SURFACE WERE PREPARED BY SOL-GEL METHOD. THE EFFECT OF RE DOPING WAS STUDIED BY XRDANDAFM . THERE PHOTOCATALYTIC ACTIVITIES WERE EVALUATED BY DEGRADATION OF METHLYNEN BLUE. THE INFLUENCE OF VARIANT DOPING AMOUNT OF LANTHANUM (LA), CALCINATION TEMPERATURE AND THE PH VALUES WERE STUDIED AND ANALYZED THE PHOTOCATALYTIC MECHANISM OF LA-DOPED TITANIA THIN FILMS. THE RESULTS SHOW THAT DOPING WITH OPTIMUM LA COULD RESTRAIN THE CRYSTAL STRUCTURE CHANGING, IMPROVE THE PHOTOCATALYTIC EFFICIENCY AND THE REACTIONS FIX WITH THE FIRST ORDER KINETIC EQUATION. TITANIA DOPED WITH LANTHANUM NITRATE SOLUTION WITH N (LA):N(TIO2)=0.5％ WHICH WERE CALCINED UNDER 400 C O EXHIBIT THE HIGHEST PHOTOCATALYTIC EFFICIENCY.

领　　域： [文化科学]