绿色有机蒙脱石的制备、表征及其抗菌活性  

Preparation,Characterization and Antibacterial Activity of Green Organic Montmorillonite

作　　者：陈鹏涛[1] 姜昕宇[1] 马澜[1] 王少东[1] 李俊明[1] 周飞[1] 

机构地区：[1]西安工程大学环境与化学工程学院,陕西西安710048

出　　处：《广州化工》2013年第14期62-64,共3页GuangZhou Chemical Industry

基　　金：陕西省科技攻关项目(2012K08-10);西安工程大学大学生创新训练项目(201204060)

摘　　要：为了提高天然粘土矿物的除藻能力,并降低其对环境的毒性,本研究使用环境友好型季铵盐[1,5-(戊撑)双(N,N'-乙酸十二酯溴化铵)对粘土矿物进行了改性,制备了新型的有机粘土矿物O-MMT2。对O-MMT2进行了结构表征和抗菌特性的研究。结果表明,相对于天然粘土矿物有机粘土矿物O-MMT2的表面疏水性有了明显的提高。O-MMT2的抗菌活性不但优于天然的粘土矿物,而且也优于单季铵盐十六烷基三甲基溴化铵改性的粘土矿物O-MMT1。在使用量分别为0.6 g/L和1.0 g/L时,O-MMT2就可以完全杀死藻类和细菌,而对于O-MMT1要达到同样的效果,则分别需要1.0 g/L和1.2 g/L。To raise algae removal capacity of natural clay -mineral and reduce its toxicity to environment, montmo- rillonite was modified by using a eco - friendly quaternary ammonium salt, 1,5 - （pentamethylene） bis （ N, N＇ - diethyl dodecyl acetate ammonium bromide） to prepare organic clay -mineral O -MMrI＇2, and its chemical construction charac- terization and antibacterial activity characteristics were carried out. Results showed that surface hydrophobicity of organic clay - mineral 0 - MMT2 was obviously high comparing with one of nature clay - mineral. The antibacterial activity of O - MMT2 was more excellent than that of both nature montmorillonite and clay mineral modified by cetrimonium bromide. For killing algae and bacteria completely, the 0. 6 g/L and 1.0 g/L dosage of O - MMT2 were needed, but if O - MMT1 made the same effect, the dosage should be 1.0 g/L and 1.2 g/L, respectively.

关 键 词：抗菌活性 有机粘土矿物 表面疏水性 绿色季铵盐 十六烷基三甲基溴化铵 

分 类 号：X52[环境科学与工程—环境工程]