Abstract: Fe/N,Cu/N co-doped and Fe,Cu,N single ion doped modified TiO₂ films have been prepared by sol-gel me-thod and dipping-drawing method,and characterized by SEM method. The photocatalytic degradation effect of these modified TiO₂ films on tetracycline hydrochloride have been investigated under UV and sunlight conditions. The resu-lts show that under UV condition the photocatalytic degradation effect of Cu and N single ion doped TiO₂ film on tetra-cycline hydrochloride is better than that of Fe/N and Cu/N co-doped TiO₂. Under sunlight condition,the degradation rate of tetracycline hydrochloride by using Cu/N doped TiO₂ film reaches 69%,which is better than the degradation effect of other modified TiO₂ films. Furthermore,the preparation conditions of it are simple and easy.

Key words: co-doped, modification, photocatalysis, titanium dioxide, tetracycline hydrochloride, antibiotic

摘要： 采用溶胶凝胶法及浸渍提拉法，制备了Fe/N、Cu/N共掺杂以及Fe、Cu、N单一离子掺杂改性的TiO₂薄膜，并进行SEM表征。在紫外光和太阳光照条件下，考察了改性TiO₂薄膜对盐酸四环素的光催化降解效果。结果表明：紫外光照下，Cu、N单一掺杂TiO₂薄膜对盐酸四环素的降解效果较Fe/N、Cu/N共掺杂TiO₂薄膜的效果好。太阳光照下，Cu/N掺杂TiO₂薄膜对盐酸四环素的降解率达到69%，比其他改性TiO₂薄膜的降解效果要好，且制备条件简单易行。

关键词: 共掺杂, 改性, 光催化, 二氧化钛, 盐酸四环素, 抗生素

CLC Number: 

• X703