CuO@MWCNTs催化臭氧化降解腐殖酸的研究  

Removing humic acid by CuO nanoparticle-filling carbon nanotube catalyzed ozonation

作　　者：张岩[1] 贾冬梅[1] 薛健[2] 

机构地区：[1]滨州学院化工技术研究中心,山东滨州256603 [2]滨化集团股份有限公司,山东滨州256603

出　　处：《应用化工》2012年第7期1193-1196,共4页Applied Chemical Industry

基　　金：山东省自然科学基金(ZR2011BL013)

摘　　要：以填充氧化铜的多壁碳纳米管(CuO@MWCNTs)为催化剂,对腐殖酸(HA)进行催化臭氧化降解。考察了腐殖酸初始质量浓度、催化剂用量、初始pH值、温度等因素对腐殖酸去除率的影响,并利用三维荧光技术研究了HA的降解过程。结果表明,初始浓度降低,初始pH值(3～10)升高,催化剂用量增加,均能显著提高腐殖酸去除率,43 min内UV254最高达78.42%;适当提高初始溶液温度,有利于腐殖酸的去除,最佳温度为25℃。CuO@ MWCNTs catalyzed ozonation was studied by the degradation of humic acid （HA）. The effects of factors on removal of HA were investigated, such as initial mass concentration of HA, catalyst dosage,initial pH value, temperature, etc, and three-dimensional excitation emission matrix fluorescence spectroscopy was applied to characterize degradation process of HA. The results indicated that the removal efficiency of HA is improved greatly with the decreasing of catalyst dosage, initial pH value and initial mass concentration of HA, the UV2s4 removal rates was up to 78.42% in 43 rain. The appropriate increase of initial temperature could improve the removal rates of humic acid, the best value temperature is 25℃.

关 键 词：CuO@MWCNTs 催化臭氧化 腐殖酸 去除 

分 类 号：TQ09[化学工程] X592[环境科学与工程—环境工程]