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Microbiological synthesis of nanophase PbS by Desulfotomaculum sp.
引用本文:GONG Jun1,2,ZHANG ZhaoMing1,BAI HongJuan1 & YANG GuanE1 1 Life Science and Technology Institute,Shanxi University,Taiyuan 030006,China 2 Department of Environmental Economics,Shanxi University of Finance and Economics,Taiyuan 030006,China. Microbiological synthesis of nanophase PbS by Desulfotomaculum sp.[J]. 中国科学E辑(英文版), 2007, 50(3): 302-307. DOI: 10.1007/s11431-007-0045-x
作者姓名:GONG Jun1  2  ZHANG ZhaoMing1  BAI HongJuan1 & YANG GuanE1 1 Life Science and Technology Institute  Shanxi University  Taiyuan 030006  China 2 Department of Environmental Economics  Shanxi University of Finance and Economics  Taiyuan 030006  China
作者单位:GONG Jun1,2,ZHANG ZhaoMing1,BAI HongJuan1 & YANG GuanE1 1 Life Science and Technology Institute,Shanxi University,Taiyuan 030006,China 2 Department of Environmental Economics,Shanxi University of Finance and Economics,Taiyuan 030006,China
基金项目:科技部资助项目;国家重点基础研究发展计划(973计划)
摘    要:The uniform nanoparticles PbS with diameters about 13 nm could be synthesized by Desulfotomaculum sp. under mild condition. The effects of the processing vari-ables such as pH and temperature were investigated. The obtained products were in detailed by means of transmission electron microscopy(TEM) and X-ray diffraction(XRD) ,respectively. The results revealed that the PbS crystallites were identical in structure,shape and size under different temperatures while their morphology changed from rod to spheroidal with pH increasing. In the biological synthetic process for PbS nanoparticles,Desulfotomaculum sp. can use sulfate as a terminal electron acceptor to produce sulfide which acts as the source of sulfur for the formation of PbS nanoparticles.


Microbiological synthesis of nanophase PbS by Desulfotomaculum sp.
GONG Jun,ZHANG ZhaoMing,BAI HongJuan,YANG GuanE. Microbiological synthesis of nanophase PbS by Desulfotomaculum sp.[J]. Science in China(Technological Sciences), 2007, 50(3): 302-307. DOI: 10.1007/s11431-007-0045-x
Authors:GONG Jun  ZHANG ZhaoMing  BAI HongJuan  YANG GuanE
Abstract:The uniform nanoparticles PbS with diameters about 13 nm could be synthesized by Desulfotomaculum sp. under mild condition. The effects of the processing vari-ables such as pH and temperature were investigated. The obtained products were in detailed by means of transmission electron microscopy(TEM) and X-ray diffraction(XRD) ,respectively. The results revealed that the PbS crystallites were identical in structure,shape and size under different temperatures while their morphology changed from rod to spheroidal with pH increasing. In the biological synthetic process for PbS nanoparticles,Desulfotomaculum sp. can use sulfate as a terminal electron acceptor to produce sulfide which acts as the source of sulfur for the formation of PbS nanoparticles.
Keywords:lead sulfide  microbial method  nanoparticles  transmission electron microscopy  X-ray diffraction
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