Biosorption of the metal-complex dye Acid Black 172 by live and heat-treated biomass of Pseudomonas sp. strain DY1: kinetics and sorption mechanisms.
作者： Lin-Na Du , Bing Wang , Gang Li , Sheng Wang , David E. Crowley
DOI: 10.1016/J.JHAZMAT.2011.12.001
关键词:
摘要: The ability of Pseudomonas sp. strain DY1 to adsorb Acid Black 172 was studied determine the kinetics and mechanisms involved in biosorption dye. Kinetic data for adsorption fit a pseudo-second-order model. Increased initial dye concentration could significantly enhance amount adsorbed by heat-treated biomass which maximum as high 2.98 mmol/g biomass, whereas it had no significant influence on sorption live biomass. As treated temperature increased, showed gradual increase ability. Experiments using potentiometric titration Fourier transform infrared spectroscopy (FTIR) indicated that amine groups (NH2) played prominent role 172. Scanning electron microscopy (SEM), atomic force (AFM) transmission (TEM) analysis heat treatment increased permeability cell walls denatured intracellular proteins. results experiments different components confirmed proteins contributed suggest produced this may have application removal metal-complex dyes from wastewater streams generated products industry.
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