摘要：

以250 W紫外灯作光源,以TiO2为催化剂,研究了林可霉素光催化降解的合适条件。结果表明,在TiO2用量为0.4 g/L,pH为5.0,林可霉素初始质量浓度为60 mg/L,光催化反应90 min的条件下,林可霉素降解率达到100%。掺杂1%(以物质的量计)Cu²⁺的TiO2复合催化剂,其光催化活性高于纯TiO2。将优化的光催化降解体系用于林可霉素生产厂废水的处理,可实现林可霉素的完全去除。

关键词: 林可霉素, TiO2, 光催化

Abstract:

Using a 250 W ultraviolet lamp as the light source， TiO₂ as catalyst，the conditions of photocatalyticdegradation of lincomycin have been investigated. The results show that when the TiO₂ dosage is 0.4 g/L，the solutionpH 5.0, the initial lincomycin concentration 60 mg/L and the photo reaction time 90 min， the degradation rateof lincomycin could reach 100%. The experiments also demonstrate that when the composite TiO₂ is doped with 1%of Cu₂₊，its photocatalytic activity is higher than pure TiO₂. When this optimized photocatalytic degradation systemis used for treating lincomycin wastewater， Lincomycin can be removed completely from the wastewater.

Key words: lincomycin, TiO₂, photocatalysis

中图分类号: 

• X703.1