摘要
主要采用纳米TiO2悬浮体系在中压汞灯照射下光催化氧化处理苯酚废水,利用756MC型紫外可见分光光度计测定苯酚溶液在270nm处的吸光度。考察了pH值、纳米TiO2的投加量、苯酚溶液的初始浓度以及处理时间对苯酚去除率的影响。结果表明:在本实验所设定的中压汞灯照射下,pH值为3,纳米TiO2的用量为40mg.L-1,苯酚的初始浓度为10mg.L-1,恒温磁力搅拌器搅拌的条件下,反应1h,去除率达69.01%。本实验是从理论和经济角度综合考虑,得出了以上最佳处理条件。
This paper is mainly on the research of using nanometer titania suspension system to catalyze the redox of phenol wastewater, which happened on the irradiation of the mercury vapanr lamp. Using 756MC UV-VIS spectrophotometer measure the absorbency of phenol solution on the wavelengh of 270nm. The influences of the pH , the amount of catalyst , the original concentration of phenol and reaction time on phenol of waste water using nanometer titania were studied. The results showed that, In the condition of this experiments, when the pH was 3, the concentration of Nanometer titania was 40mg.L^-1 and the initial concentration of phenol was10 mg.L^-1, the degradation rate was 69.01% on the reaction time was lh. The optimal conditions of this experiment was acquire by analysis theory and benefits.
出处
《黑龙江科技信息》
2008年第34期12-13,共2页
Heilongjiang Science and Technology Information
关键词
纳米TIO2
光催化氧化
苯酚废水
去除率
Nanometer titania
photocatalyst
wastewater of phenol
degradation rate
