Application of laccase immobilized rice straw biochar for anthracene degradation.
Adsorption isotherm
Anthracene
Laccase
Operational stability
Rice straw biochar
Trametes maxima
Journal
Environmental pollution (Barking, Essex : 1987)
ISSN: 1873-6424
Titre abrégé: Environ Pollut
Pays: England
ID NLM: 8804476
Informations de publication
Date de publication:
01 Jan 2021
01 Jan 2021
Historique:
received:
08
06
2020
revised:
07
10
2020
accepted:
10
10
2020
pubmed:
24
10
2020
medline:
19
12
2020
entrez:
23
10
2020
Statut:
ppublish
Résumé
The present study explores the immobilization of ligninolytic enzyme-laccase on the surface of rice straw biochar and evaluates its application for anthracene biodegradation. The rice straw biochar was acid-treated to generate carboxyl functionality on its surface, followed by detailed morphological and chemical characterization. The surface area of functionalized biochar displayed a two-fold increase compared to the untreated biochar. Laccase was immobilized on functionalized biochar, and an immobilization yield of 66% was obtained. The immobilized enzyme demonstrated operational stability up to six cycles while retaining 40% of the initial activity. Laccase immobilization was further investigated by performing adsorption and kinetic studies, which revealed the highest immobilization concentration of 500 U g
Identifiants
pubmed: 33096462
pii: S0269-7491(20)36516-7
doi: 10.1016/j.envpol.2020.115827
pii:
doi:
Substances chimiques
Anthracenes
0
biochar
0
Charcoal
16291-96-6
Laccase
EC 1.10.3.2
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
115827Informations de copyright
Copyright © 2020 Elsevier Ltd. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.