离子液体[BMIM]Cl对土壤理化性质及其微生物的影响  

Influence of ionic liquid 1-butyl-3-methylimidazolium chloride on soil physic-chemical property and soil microbiological community

作　　者：童彦杰[1] 王启军[2] 马亚丽[1] 吕椰子[1] 刘洋洋[1] 张瑞[1] 吴元欣[1] 朱圣东[1] 

机构地区：[1]武汉工程大学化工与制药学院绿色化工过程省部共建教育部重点实验室湖北省新型反应器和绿色工艺重点实验室,湖北武汉430074 [2]西南大学园艺园林学院南方山地园艺学教育部重点实验室,重庆400715

出　　处：《武汉工程大学学报》2011年第8期25-29,共5页Journal of Wuhan Institute of Technology

摘　　要：针对离子液体的毒性研究是离子液体开发与利用研究的一个重要环节,对目前研究最为深入的离子液体1-丁基-3-甲基咪唑氯化盐对荒地和苗圃两种土壤理化性质以及土壤微生物群落影响进行研究.结果表明:随着土壤中加入1-丁基-3-甲基咪唑氯化盐的含量逐渐增大,土壤pH值逐渐降低、有机质含量和可溶盐含量逐渐增大.土壤微生物群落的生长和代谢随着1-丁基-3-甲基咪唑氯化盐浓度的增大有着逐渐增强的抑制作用,1-丁基-3-甲基咪唑氯化盐对荒地土壤样品中细菌和放线菌的半有效浓度分别为0.032 5 g.kg-1和0.043 8 g.kg-1,1-丁基-3-甲基咪唑氯化盐对苗圃土壤样品中细菌和放线菌的半有效浓度分别为0.486 g.kg-1和0.447 g.kg-1.Development and exploitation of ionic liquids had become a significant research realm of green chemistry and their toxic research was an important part in their development and exploitation.This research investigated the influence of ionic liquid 1-butyl-3-methylimidazolium chloride（[BMIM]Cl） on the physic-chemical property and microbiological community of the uncultured soil and nursery garden soil.The results showed that the contents of soluble salts and organic mass in the uncultured soil samples and nursery garden soil samples increased with the concentration of Cl increasing,but their pH value decreased.Furthermore,activity and numbers of soil microbiological community were inhibited by the increased concentration of [BMIM]Cl.The median effect concentration（EC50） of Cl on bacteria was 0.032 5 g·kg-1 and actinomycetes was 0.043 8 g·kg-1 in the uncultured soil samples,and the EC50 of [BMIM]Cl on bacteria was 0.486 g·kg-1 and actinomycetes was 0.447 g·kg-1 in the nursery garden soil samples.

关 键 词：离子液体 1-丁基-3-甲基咪唑氯化盐 理化性质 土壤微生物群落 半有效浓度 

分 类 号：TQ209[化学工程—有机化工] Q142.3[生物学—生态学]