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Energy Sources, Part A: Recovery, Utilization, and Environmental Effects Volume 36, 2014 - Issue 17
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Original Articles

The Enhancement of Pyrene Biodegradation by Assembling MFe3O4 Nano-sorbents on the Surface of Microbial Cells

D. SaedEgyptian Petroleum Research Institute, Nasr City, Cairo, Egypt
,
H. N. NassarEgyptian Petroleum Research Institute, Nasr City, Cairo, Egypt
,
N. Sh. El-GendyEgyptian Petroleum Research Institute, Nasr City, Cairo, EgyptCorrespondence[email protected]
,
T. ZakiEgyptian Petroleum Research Institute, Nasr City, Cairo, Egypt
,
Y. M. MoustafaEgyptian Petroleum Research Institute, Nasr City, Cairo, Egypt
&
I. H. A. BadrFaculty of Science, Ain-Shams University, Cairo, Egypt
Pages 1931-1937 | Received 08 Jan 2014, Accepted 28 Jan 2014, Published online: 07 Jul 2014
 
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Abstract

Microbial cells of Gram +ve Micrococcus lutes RM1 was coated by magnetic MFe3O4 nanoparticles, which have good adsorption capacity towards pyrene (7.66 μmole/g). Transmission electron microscope analysis of the cells showed that the MFe3O4 nanoparticles were efficiently assembled on the surfaces of the microbial cell and strongly adsorbed by the surfaces of the cells. The coated cells not only showed higher biodegradation capabilities towards pyrene but could also be reused for three successive cycles characterized by operational stability and have the advantage of magnetic separation.

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