Photocatalytic Degradation of E.coli Membrane Cell in the Presence of ZnO Nanowires  

作　　者：王雪飞 刘鹏 

机构地区：[1]Department of Chemistry,School of Science,Wuhan University of Technology [2]State Key Laboratory of Advanced Technology for Material Synthesis and Processing,Wuhan University of Technology

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2011年第2期223-226,共4页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the National Natural Science Foundation of China (No. 50702040)

摘　　要：The photocatalytic degradation of E.coli membrane cell by ZnO nanowires was studied using field-emission scanning electron microscope（FE-SEM）,fluorescence microscopy,and Attenuated total reflection fourier transform infrared（ATR-FTIR）.The outer membrane of E.coli was removed completely in the presence of ZnO nanowires under UV irradiation,and the cells became twisted shapes without a mechanically strong network.After ZnO nanowires photocatalysis,the permeability of the treated cells increased to some degree that could be confirmed by quantum dots labeling technique.Structural changes in the cell wall membrane were revealed by the decay of the characteristic groups bands in ATR-FTIR spectra.The photocatalytic degradation of E.coli membrane cell by ZnO nanowires was studied using field-emission scanning electron microscope（FE-SEM）,fluorescence microscopy,and Attenuated total reflection fourier transform infrared（ATR-FTIR）.The outer membrane of E.coli was removed completely in the presence of ZnO nanowires under UV irradiation,and the cells became twisted shapes without a mechanically strong network.After ZnO nanowires photocatalysis,the permeability of the treated cells increased to some degree that could be confirmed by quantum dots labeling technique.Structural changes in the cell wall membrane were revealed by the decay of the characteristic groups bands in ATR-FTIR spectra.

关 键 词：PHOTOCATALYSIS E.COLI ZnO NANOWIRE PERMEABILITY 

分 类 号：X172[环境科学与工程—环境科学]