Use of Forestry Wastes for Biosorption of Dyes and Cr (VI)
Joint Authors
Ayan, Ebru Mavioglu
Berraksu, Nariye
Yanik, Jale
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-11-07
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The pine cone and oak cups pulp were used as low-cost adsorbents for the removal of basic (Basic Red 18) and acidic (Acid Red 111) dyes and Cr (VI) from aqueous solutions.
The adsorbents were modified by HNO3 to improve their biosorption capacity.
The adsorbents were characterized using scanning electron microscopy and FTIR spectroscopy.
The zeta potential was determined as a function of the pH, in order to explain the effect of pH on electrostatic adsorption ability of biosorbent.
Modification of adsorbents with nitric acid led to an increase in accessibility of some functional groups on the surface or a decrease in negativity of surface charge.
The modification of pine cone increased its adsorption capacity for the basic dye, whereas the modification of oak cups pulp decreased the adsorption ability for basic dye to some extent.
The adsorption isotherms fitted the Langmuir model.
The adsorption capacities were found to be 142.85, 158.73, and 156.20 mg g-1 for modified and raw pine cone and oak cups pulp, respectively.
The acidic dye and Cr (VI) adsorptions were much lower compared to basic dye on all tested adsorbents.
The results indicated that the forest wastes (pine cone and oak cups pulp) were an attractive candidate for basic dyes from aqueous solution.
American Psychological Association (APA)
Berraksu, Nariye& Ayan, Ebru Mavioglu& Yanik, Jale. 2012. Use of Forestry Wastes for Biosorption of Dyes and Cr (VI). Journal of Chemistry،Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-471391
Modern Language Association (MLA)
Berraksu, Nariye…[et al.]. Use of Forestry Wastes for Biosorption of Dyes and Cr (VI). Journal of Chemistry No. 2013 (2013), pp.1-10.
https://search.emarefa.net/detail/BIM-471391
American Medical Association (AMA)
Berraksu, Nariye& Ayan, Ebru Mavioglu& Yanik, Jale. Use of Forestry Wastes for Biosorption of Dyes and Cr (VI). Journal of Chemistry. 2012. Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-471391
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-471391