NDLI: Adsorptive Removal of Pb(II) by a Novel Extracellular Biopolymer Produced by Pseudomonas Fluorescence: Equilibrium and Kinetics

Content Provider	IEEE Xplore Digital Library
Author	Feng-Cui Li Rong-Nian Wang Song-Yue Song Xin-Zhi Liu Jun-Cao Shi Ling-Hong Zhu Tian-Hai Wang
Copyright Year	2009
Abstract	An extracellular biopolymer (PS-2) produced by Pseudomonas fluorescence C-2 was used as an alternative biosorbent to remove toxic Pb(II) metallic ions from aqueous solutions. The prepared biosorbent PS-2 were characterized by FTIR and SEM. The effect of experimental parameters such as pH, dosage of biosorbent , Pb(II) initial concentration and contact time on the adsorption was studied. It was found that pH played a major role in the adsorption process, the optimum pH for the removal of Pb(II) was 6.0. SEM images showed that the surfaces of particles was rough and irregular with large area for metal-surface interaction, the FTIR spectra showed carboxyl , hydroxyl and amino groups of the PS-2 were involved in chemical interaction with the Pb(II) ions. Equilibrium studies showed that Pb(II) adsorption data followed Langmuir model. The maximum adsorption capacity (qmax) for Pb(II) ions was estimated to be 94.58 mg/g. The kinetic studies showed that the kinetic rates were best fitted to the pseudo-second-order model. The study suggestted that the novel extracellular biopolymer biosorbent have potential applications for removing Pb(II) from wastewater.
Starting Page	175
Ending Page	180
File Size	744355
Page Count	6
File Format	PDF
ISBN	9780769538198
DOI	10.1109/ICEET.2009.508
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-10-16
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Surface contamination Extracellular biopolymer Adsorption isotherm Fluorescence Pb(II) Batteries Rough surfaces Extracellular Chemicals Surface treatment Microorganisms Biosorption FTIR SEM Adsorption kinetics Kinetic theory Power engineering and energy
Content Type	Text
Resource Type	Article

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