Biosorption potential of a novel powder, prepared from Ficus auriculata leaves, for sequestration of hexavalent chromium from aqueous solutions

Biosorption potential of a novel powder, prepared from Ficus auriculata leaves, for sequestration... A novel biosorbent, powdered Ficus auriculata leaves (FALP), has been used to remove hexavalent chromium from aqueous solutions by use of a batch technique. The biosorbent was characterized by surface area analysis, Fourier-transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, and scanning electron microscopy. The effects on adsorption of pH, initial Cr(VI) ion concentration, amount of FALP, agitation speed, and temperature were investigated. Equilibrium data from the biosorption study were evaluated by use of two and three-variable isotherm models. The equilibrium data were better fitted by use of a three-variable isotherm model. The kinetics of biosorption were examined by use of pseudo-first-order and pseudo-second-order kinetic models and an intraparticle diffusion model. The biosorption data were best fit by the pseudo-second-order kinetic model. Thermodynamic investigation revealed that biosorption of hexavalent chromium ions by FALP is spontaneous in nature, endothermic, and results in increased randomness. The study suggests that FALP could be used as a potential biosorbent for removal of hexavalent chromium from wastewaters. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Biosorption potential of a novel powder, prepared from Ficus auriculata leaves, for sequestration of hexavalent chromium from aqueous solutions

Loading next page...
 
/lp/springer_journal/biosorption-potential-of-a-novel-powder-prepared-from-ficus-auriculata-QM9uyD1br1
Publisher
Springer Netherlands
Copyright
Copyright © 2014 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-014-1900-6
Publisher site
See Article on Publisher Site

Abstract

A novel biosorbent, powdered Ficus auriculata leaves (FALP), has been used to remove hexavalent chromium from aqueous solutions by use of a batch technique. The biosorbent was characterized by surface area analysis, Fourier-transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, and scanning electron microscopy. The effects on adsorption of pH, initial Cr(VI) ion concentration, amount of FALP, agitation speed, and temperature were investigated. Equilibrium data from the biosorption study were evaluated by use of two and three-variable isotherm models. The equilibrium data were better fitted by use of a three-variable isotherm model. The kinetics of biosorption were examined by use of pseudo-first-order and pseudo-second-order kinetic models and an intraparticle diffusion model. The biosorption data were best fit by the pseudo-second-order kinetic model. Thermodynamic investigation revealed that biosorption of hexavalent chromium ions by FALP is spontaneous in nature, endothermic, and results in increased randomness. The study suggests that FALP could be used as a potential biosorbent for removal of hexavalent chromium from wastewaters.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Dec 25, 2014

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off