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Burkholderia cepacia immobilized on eucalyptus leaves used to simultaneously remove malachite green (MG) and Cr(VI)

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dc.contributor.authorGan, L.
dc.contributor.authorZhou, F.
dc.contributor.authorOwens, G.
dc.contributor.authorChen, Z.
dc.date.issued2018
dc.description.abstractA multifunctional biomaterial capable of simultaneously removing malachite green (MG) and Cr(VI) was prepared by immobilizing Burkholderia cepacia (B. cepacia) on eucalyptus leaves (EL). The maximum uptake of MG (60 mg/L) and Cr(VI) (20 mg/L) were 94.8% and 71.9% respectively, which was more efficient than when using EL or free cells alone. SEM-EDS demonstrated that B. cepacia was attached to EL and that Cr(VI) was biosorbed into the immobilized cells. FTIR showed that the degradation by functional groups of immobilized cells was in keeping with the products, detected by GC-MS, which suggested that MG could be degraded to 4-dimethylamino benzophenone and 4-dimethylamino phenol. The removal of both MG and Cr(VI) by EL immobilized cells fit the pseudo-second order adsorption kinetic model well (with both R<sup>2</sup>>0.983). The equilibrium adsorption capacity of MG was 9.59, 18.67 and 28.64 mg/g for initial MG concentrations of from 30, 60, 90 mg/L, respectively when the concentration of Cr(VI) was held constant at 20 mg/L. The adsorption capacity of Cr(VI) increased from 3.49, 7.68 to 9.79 mg/g as the initial Cr(VI) concentrations increased (10, 20, 30 mg/L) while the MG concentration was kept constant at 60 mg/L. The results showed that eucalyptus leaves as a low cost and eco-friendly material have some potential to be an effective immobilization for environmental applications.
dc.identifier.citationColloids and Surfaces B: Biointerfaces, 2018; 172:526-531
dc.identifier.doi10.1016/j.colsurfb.2018.09.008
dc.identifier.issn0927-7765
dc.identifier.issn1873-4367
dc.identifier.orcidOwens, G. [0000-0002-4606-3678]
dc.identifier.urihttps://hdl.handle.net/11541.2/134041
dc.language.isoen
dc.publisherELSEVIER
dc.relation.fundingKey Program of Fujian Provincial Department of Education , Program number: JK2015010
dc.relation.fundingFujian Sciences and Technology project , Project: 2016Y0026
dc.relation.fundingARC FT120100799
dc.relation.granthttp://purl.org/au-research/grants/arc/JK2015010
dc.rightsCopyright 2018 Elsevier Access Condition Notes: Accepted manuscript available after 1 October 2020
dc.source.urihttps://doi.org/10.1016/j.colsurfb.2018.09.008
dc.subjectCells, Immobilized
dc.subjectBurkholderia cepacia
dc.subjectEucalyptus
dc.subjectPlant Leaves
dc.subjectChromium
dc.subjectRosaniline Dyes
dc.subjectSpectroscopy, Fourier Transform Infrared
dc.subjectKinetics
dc.subjectAdsorption
dc.subjectBiodegradation, Environmental
dc.subjectGas Chromatography-Mass Spectrometry
dc.titleBurkholderia cepacia immobilized on eucalyptus leaves used to simultaneously remove malachite green (MG) and Cr(VI)
dc.typeJournal article
pubs.publication-statusPublished
ror.fileinfo12165446580001831 13165446570001831 Gan_et_al_Burkholderia cepacia immobilized on eucalyptus leaves used to.pdf
ror.mmsid9916230101501831

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