Simultaneous adsorption of heavy metal ions and anions from aqueous solutions on chitosan Investigated by spectrophotometry and SEM-EDX analysis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F16%3A10336713" target="_blank" >RIV/00216208:11310/16:10336713 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.colsurfa.2016.08.033" target="_blank" >http://dx.doi.org/10.1016/j.colsurfa.2016.08.033</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.colsurfa.2016.08.033" target="_blank" >10.1016/j.colsurfa.2016.08.033</a>

Result language

angličtina

Original language name

Simultaneous adsorption of heavy metal ions and anions from aqueous solutions on chitosan Investigated by spectrophotometry and SEM-EDX analysis

Original language description

Chitosan (flakes with a degree of deacetylation of 90%) was used as adsorbent for heavy metal ions in solution (copper, iron, nickel). The adsorption capacities were determined in dependence on the adsorption time and the initial metal salt concentration. With increasing adsorption time as well as the initial metal salt concentration the adsorption capacities increased. Highest adsorption capacity was achieved for copper(II)ions with 110 mg/L. Iron(II)- and nickel(II)ions adsorbed with an adsorption capacity of 80 mg/L. The surface of chitosan flakes were investigated before and after the adsorption process by SEM and SEM-EDX, respectively. The formation of crystal-like structures was observed by SEM analysis for the investigation of copper(II)sulfate and iron(II)sulfate. It has been noticed that iron(II)ions oxidized before the adsorption on chitosan occurs. In comparison, the adsorption of nickel salt resulted in a smooth layer on the chitosan surface. SEM-EDX analysis revealed that sulfate adsorbs on the chitosan surface besides the metal cations used. (C) 2016 Published by Elsevier B.V.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CC - Organic chemistry

OECD FORD branch

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Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Colloids and Surfaces A: Physicochemical and Engineering Aspects

ISSN

0927-7757

e-ISSN

—

Volume of the periodical

510

Issue of the periodical within the volume

DEC 5 2016

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

8

Pages from-to

275-282

UT code for WoS article

000386862300034

EID of the result in the Scopus database

2-s2.0-84992735559