Abstract
The characteristics and influence factors of the reduction of complexes TiF62-to titanium were investigated by Pseudomonas sp.MBR with organic carbon source as electron donor in the presence of oxygen.The results indicated that the initial concentration of TiF62-could be 0.5~8.0 mmol/L,the optimum pH was 7.0,and citrate was the best carbon source.Furthermore,the best reduction effect was obtained when the molar ratio of the electron donor to TiF62-was 100 : 1.The results of scanning electron micrograph and transmission electron micrograph showed that the morphology of cells supplied with TiF62-had no remarkable difference compared to blank control,and the titanium nanoparticles distributed around the plasma membrane.
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