高等学校化学学报Issue(2)：372-376,5.DOI:10.7503/cjcu20130578
氧化亚铁硫杆菌的胞外电子传递研究
Research on Extracellular Electron Transfer of Acidithiobacillus Ferrooxidans
摘要
Abstract
Extracellular electron transfer of Acidithiobacillus ferrooxidans( At. f) was investigated using cyclic voltammetry and chronoamperometry. Compared with cyclic voltammograms with ferrous ion or sulfur as elec-tron donors, At. f has the extracellular electron transfer capability, and the reduction peak is produced by At. f under the condition of a constant potential-0.4 V, adding ferrous ion to the system could improve extra-cellular electron transfer. The current produced/changed under aerobic condition is more than one order of magnitude than under anaerobic condition. It illustrates that At. f has the stronger electrochemical activity un-der aerobic condition. In addition, surface characteristics of At. f were analyzed using X-ray diffraction, Fou-rier transform infrared spectra and scanning electron microscopy. These results could provide a basis for impro-ving metal leaching rate.关键词
氧化亚铁硫杆菌/电子传递/浸矿/循环伏安/计时电流Key words
Acidithiobacillus ferrooxidan/Electron transfer/Bioleaching/Cyclic voltammetry/Chronoam-perometry分类
化学化工引用本文复制引用
梁方圆,吴冉冉,曹昌丽,郑越,杨朝晖,赵峰..氧化亚铁硫杆菌的胞外电子传递研究[J].高等学校化学学报,2014,(2):372-376,5.基金项目
中国科学院知识创新工程重要方向项目(批准号：KZCX2-EW-402)、中国科学院百人计划和国家自然科学基金(批准号:21177122)资助.@@@@Supported by the Main Direction Program of Knowledge Innovation(No. KICX2-EW-402), the Hundred Talents Program of CAS and the National Natural Science Foundation of China(No.21177122) （批准号：KZCX2-EW-402）
