摘要
文章研究运用超声波浸渍法制备活性炭载铁催化剂作为非均相Fenton体系的催化剂.采用电镜扫描、比表面积分析及XRD分析对催化剂进行了表征.以双酚A作为降解目标物,考察催化剂用量、H_2O_2用量、pH值、温度对双酚A氧化降解效果的影响.并运用Langmuir动力学模型对实验结果进行了拟合,模型值与实验值吻合良好.研究结果表明:初始pH=4,催化剂用量=4 g/L,H_2O_2用量=0.05 mol/L,铁离子负载量=10%是实验用催化剂氧化降解双酚A的最佳操作条件,在此条件下反应60 min后,双酚的去除率达到90%以上;所采用的动力学模型能较好的预测双酚A的氧化降解效果,为有效去除水中双酚A开阔了新的思路.
The study mainly focuses on the use of ultrasonic impregnation preparation of activated carbon supported ferric catalyst as heterogeneous Fenton catalyst. The catalysts were characterized by using scanning electron microscopy （SEM）, surface area analysis and XRD analysis. With bisphenol A as degradation target, the effects of catalyst dosage, H202 dosage, pH value, temperature and iron load of bisphenol A degradation effect were investigated. Langmuir kinetic models of the experimental results were fitted and the model values were in good agreement with the experimental values. The results of the study show that： initial pH, catalyst dosage -4 g/L, H2O2 dosage = 5 tool/L, iron ion load quantity 10 % are the optimal operating conditions of catalytic oxidation of bisphenol A. Under these conditions, the reaction time is 60 min, the removal rate of bisphenol A reaches more than 90 %; the dynamic model can better predict the oxidative degradation effect of bisphenol A, and open a new way of thinking for effective removal of bisphenol A in water.
出处
《江西理工大学学报》
CAS
2016年第5期7-13,共7页
Journal of Jiangxi University of Science and Technology
基金
江西省教育厅科学技术重点研究项目(GJJ150614)
江西省研究生创新基金项目(YC2014-349)
