Structure Activity of Pb2+ Adsorbed by Modified Streptomyces erythreus

Jun Feng Wang; Chang Ming Zhong; Qi Liang; Xiao Bo Li; Hua Zhu

doi:10.4028/www.scientific.net/AMR.662.348

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 662Structure Activity of Pb2+ Adsorbed by Modified...

Structure Activity of Pb²⁺ Adsorbed by Modified Streptomyces erythreus

Abstract:

Using Streptomyces erythreus isolated from pharmaceutical residues as a biosorbent, the characteristics and mechanism of its absorbing Pb2+ was studied. The results showed that absorptive ability of bacterial mycelia modified by sodium hydroxide was improved greatly. The reaction mechanism of modified bacterial mycelia uptake Pb2+ was analyzed by back scattered electron microscope(BSEM) and infrared spectroscopy (IR). The results of experiments indicated that some chemical groups such as -COO-、C-H and O-H among cell walls of bacterial mycelia might play the key functions adsorbing Pb2+. It was presumed that the process of modified bacterial mycelia lead uptake might be a chemical and physical process collaboratively which occurred on the cell surface of bacterial mycelia chiefly based on exchangeable reaction.

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Periodical:

Advanced Materials Research (Volume 662)

Pages:

348-351

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.662.348

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Online since:

February 2013

Authors:

Jun Feng Wang, Chang Ming Zhong, Qi Liang, Xiao Bo Li, Hua Zhu

Keywords:

Back Scattered Electron Microscope, Infrared Spectroscopy, Pb²⁺, Streptomyces erythreus

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