Please use this identifier to cite or link to this item: https://doi.org/10.1021/ie1000373
DC FieldValue
dc.titleBiosorption of lanthanum, cerium, europium, and ytterbium by a brown marine alga, turbinaria conoides
dc.contributor.authorVijayaraghavan, K.
dc.contributor.authorSathishkumar, M.
dc.contributor.authorBalasubramanian, R.
dc.date.accessioned2014-06-17T08:14:35Z
dc.date.available2014-06-17T08:14:35Z
dc.date.issued2010-05-05
dc.identifier.citationVijayaraghavan, K., Sathishkumar, M., Balasubramanian, R. (2010-05-05). Biosorption of lanthanum, cerium, europium, and ytterbium by a brown marine alga, turbinaria conoides. Industrial and Engineering Chemistry Research 49 (9) : 4405-4411. ScholarBank@NUS Repository. https://doi.org/10.1021/ie1000373
dc.identifier.issn08885885
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/65241
dc.description.abstractThe ability of a brown marine alga, Turbinaria conoides, to remove four rare-earth elements (REEs; lanthanum, cerium, europium, and ytterbium) was evaluated. Results showed that T. conoides was an excellent biosorbent for all four REEs. The equilibrium pH was found to severely affect the biosorption performance; pH 4.9 ± 0.2 was found to be an optimum pH for favorable biosorption of REEs. The biosorption mechanism was found to proceed mainly by ion-exchange reactions between the lanthanide ions and the carboxyl groups present on the algal surface, confirmed by the pH edge, desorption, and scanning electron microscopy/energy-dispersive X-ray results. Biosorption isotherms were modeled using the Langmuir, Freundlich, and Toth isotherms, with the latter-described REE isotherms with very high correlation coefficients and lower error values. Maximum biosorption uptakes, according to the Langmuir model, were recorded as 154.7, 152.8, 138.2, and 121.2 mg/g for La, Ce, Eu, and Yb, respectively. Biosorption kinetics of REEs was found to be rapid, achieving 90% of total biosorption within 50 min. Desorption was successful with 0.05 M HCl, and the biomass was regenerated and reused for three sorption-desorption cycles without a significant loss in the biosorption capacity. © 2010 American Chemical Society.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1021/ie1000373
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentDIVISION OF ENVIRONMENTAL SCIENCE & ENGG
dc.contributor.departmentCIVIL ENGINEERING
dc.description.doi10.1021/ie1000373
dc.description.sourcetitleIndustrial and Engineering Chemistry Research
dc.description.volume49
dc.description.issue9
dc.description.page4405-4411
dc.description.codenIECRE
dc.identifier.isiut000277041700041
Appears in Collections:Staff Publications

Show simple item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

94
checked on Sep 17, 2021

WEB OF SCIENCETM
Citations

83
checked on Sep 9, 2021

Page view(s)

121
checked on Sep 16, 2021

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.