Biological Synthesis of Semiconductor Zinc Sulfide Nanoparticles by Immobilized Rhodobacter sphaeroides
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A novel, clean biological transformation reaction by immobilized Rhodobacter sphaeroides has been developed for the synthesis of zinc sulfide (ZnS) nanoparticles with an average diameter of 8 nm. The nanoparticles were examined by X-ray diffraction, transmission electron microscopy, energy dispersive analyses of X-rays, UV–vis optical absorption and photoluminescence spectra. The average diameter of ZnS nanoparticles varied according to the culture time.
Key wordsBiological synthesis Nanoparticles Rhodobacter sphaeroides Zinc sulfide
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We thank Dr. Wei Deng from Applied Digital Signal and Image Processing Research Centre, University of Central Lancashire, UK, and Dr. Yi-Hao Duan from College of Environmental and Resource, Shanxi University, P.R. China for revising the manuscript. The project was supported by the National Key Technologies Research and Development Program of China (Grant No. 2001BA540C).
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