摘要
采用紫外可见分光技术研究了磁性瓜环(MQ[n])对水体污染物腐殖酸(HA)的去除性能、稳定性及磁性能。考察了MQ[n]的投加量、HA的初始浓度、溶液温度、作用时间及pH值等因素对去除HA的影响。结果表明,MQ[n]对HA具有很好的去除作用,其中,MQ[n]投加量与pH值对HA的去除效果影响较大。其较优条件为MQ[n]投加量20mg、HA初始质量浓度10 mg/L、吸附温度315 K、平衡时间360 min、pH值7.0,在此条件下,MQ[n]对HA的去除率达到98.73%。MQ[n]稳定性好,且易于磁性分离。
The removal capacity of magnetic cucurbiturils（MQ[n]） on humic acid（HA）,stability and magnetic properties were studied using uv-visible spectrophotometer technology.The influence of environment factors for removal of HA,such as the dosage of MQ[n],the initial concentration of HA solution,temperature,time,and the pH of aqueous solution on removal of HA were investigated.The results show that MQ[n] has good removal effect for HA and the dosage of MQ[n] and the pH of aqueous solution were found to be the key influential factors.It was found that a relatively large removal （98.73％） was attained from a solution at an optimized MQ[n] dosage of 20 mg,the initial concentration of HA solution 10.00 mg/L,temperature 315 K,reaction time 360 min and pH 7.0.Meanwhile,MQ[n] has good stability and can be separated from wastewater easily.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2014年第24期34-36,60,共4页
Materials Reports
基金
国家自然科学基金青年科学基金(21007050)
陕西省教育厅专项科研资助项目(12JK0455)
西安市碑林区科技局资助项目(GX1205)
大学生创新创业训练计划(201210703071)
关键词
磁性瓜环
腐殖酸
去除率
水处理材料
magnetic cucurbiturils
humic acid
removal rate
water treatment material
