NDLI: Biosorption of Cd(II) from Aqueous Solution by Pseudomonas plecoglossicida: Kinetics and Mechanism

Content Provider	Springer Nature Link
Author	Guo, Jun Zheng, Xiao dan Chen, Qi bin Zhang, Lu Xu, Xu ping
Copyright Year	2012
Abstract	In our present study, we investigated the mechanism of Cd(II) biosorption from aqueous solution by Pseudomonas plecoglossicida using different instrumental techniques. The adsorption kinetics fitted well with the pseudo second-order model, suggesting that the Cd(II) adsorption by P. plecoglossicida consisted of a chemisorption and a physisorption process. Compared with the dead P. plecoglossicida cells, the live cells demonstrated the same adsorption capacity of Cd(II). Scanning electron microscope with energy dispersive X-ray spectroscopy analysis revealed that the main mechanism of adsorption was the combination of Cd(II) with the organic functional groups in the cell wall of P. plecoglossicida. Furthermore, Fourier transform infrared spectroscopic analysis of the metal-loaded biosorbent confirmed the participation of –NH, –OH, –CH, and –CONH groups in the uptake of Cd(II). Moreover, cation transport test revealed that ionic exchange interactions were involved in the Cd(II) adsorption. However, it only played a minor role in the Cd(II) biosorption process.
Starting Page	350
Ending Page	355
Page Count	6
File Format	PDF
ISSN	03438651
Journal	Current Microbiology
Volume Number	65
Issue Number	4
e-ISSN	14320991
Language	English
Publisher	Springer-Verlag
Publisher Date	2012-06-17
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Microbiology Biotechnology
Content Type	Text
Resource Type	Article
Subject	Medicine Microbiology Applied Microbiology and Biotechnology

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