活性炭/铁氧化物复合材料催化降解水中的苯酚  

Activated carbon/iron oxide composite material for phenol catalytic degradation from aqueous system

作　　者：谭万春[1] 李芬[1] 万俊力[1] 李杰华[1] 廖晓希[1] 

机构地区：[1]长沙理工大学水利工程学院,长沙410014

出　　处：《环境工程学报》2013年第5期1744-1748,共5页Chinese Journal of Environmental Engineering

基　　金：湖南省自然科学基金资助项目(12JJ3056)

摘　　要：为了获得优良催化性能和分离性的复合材料,通过采用化学共沉淀法,把活性炭和铁氧化物进行复合,制备得到活性炭/铁氧化物复合材料。利用非均相Fenton反应处理模拟苯酚废水,考察了不同因素对苯酚去除率的影响。结果表明,在100 mL 100 mg/L的苯酚模拟废水中,复合材料m=0.1 g,温度为35℃,H2O2投加量为3 mL,pH=3,苯酚的去除率达到99%以上。制备得到的活性炭/铁氧化物复合材料具有磁性,能通过简单的磁分离技术就能快速从溶液中分离出来。通过对复合吸附材料降解稳定性的研究,发现经过5次循环使用后,苯酚去除率均在93%以上,表明其具有良好的循环使用性能。In order to obtain composite material with excellent catalytic and dissociative ability, activated carbon/iron oxide composite material could be prepared by compounding activated carbon and iron oxides through chemical coprecipitation. In this study the simulated phenol wastewater was treated by heterogeneous Fenton re-action, and the impacts of various factors on phenol removal were investigated. The result showed that the phenol removal rate reached 99% （mass of the composite material = 0. 1 g, T = 35℃ , dosage of H2O2 = 3 mL, pH = 3 ） in 100 mL simulated wastewater containing 100 mg/L phenol. Activated carbon/iron oxide composite material could be separated from solution by simple magnetic separation technology. In the study on the stability of com-posite material degradation, phenol removal rates were still above 93% after 5 times recycle which indicated a satisfied recycling performance.

关 键 词：非均相Fenton反应 活性炭 铁氧化物 氧化降解 

分 类 号：X703[环境科学与工程—环境工程]