纳米级二氧化钛对水中土霉素的光降解实验研究

摘要

Titanium dioxide was chosen as an adsorption and photodegradation material for oxyteracycline (OTC) adsorption and photodegradation in aqueous.The effects of reaction time, pH value and titanium dioxide dosage were investigated respectively, and then the corresponding mechanism of adsorption and photodegradation was calculated to analyze.The results showed that the photodegradation of OTC played a significant role in the removal of OTC, and the effects of titanium dioxide dosage took a more important role than pH value.%采用纳米级二氧化钛作为吸附和光催化降解材料,对水中土霉素进行吸附和光催化降解实验,实验过程中考察了反应时间、pH以及二氧化钛投加量对二氧化钛去除土霉素的影响,并分析并判断反应作用机制.结果表明,二氧化钛去除水中土霉素需在紫外灯光的照射下才能发生降解,比较pH和二氧化钛投加量对结果的影响之后发现,二氧化钛的投加量对去除水中土霉素的影响较大.