Surface Modified Magnetic Silica Particles for the Immobilization of Laccase and its Use for Pentachlorophenol Removal in Water

Ying Wang; Di Zhang; Xue Li; Bo Li

doi:10.4028/www.scientific.net/AMM.178-181.657

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 178-181Surface Modified Magnetic Silica Particles for the...

Surface Modified Magnetic Silica Particles for the Immobilization of Laccase and its Use for Pentachlorophenol Removal in Water

Abstract:

Magnetic Cu²⁺-chelated silica particles using polyacrylamide (PAM) as a metal-chelating ligand were developed and used for the immobilization of laccase by coordination. The particles were characterized by (XRD). The effect of Cu²⁺ and PAM concentrations on the enzymatic activity and the catalytic capacity for pentachlorophenol (PCP) degradation were evaluated. The results showed that the optimum Cu²⁺ and PAM concentrations were 0.2 mol/L and 2 g/L, respectively. The immobilized laccase prepared in this work exhibited a good catalytic capacity for PCP removal from aqueous solutions.

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Periodical:

Applied Mechanics and Materials (Volumes 178-181)

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657-660

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.178-181.657

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Online since:

May 2012

Authors:

Ying Wang, Di Zhang, Xue Li, Bo Li

Keywords:

Catalytic, Laccase, Magnetic Silica, Pentachlorophenol

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