ABOUT INDEXING BOARD ARCHIVES AUTHOR GUIDELINES SUBMIT PAPER AUTHOR'S PAGE NEWS, EVENTS
REVISTA DE CHIMIE
Cite as: Rev. Chim.
https://doi.org/10.37358/Rev.Chim.1949

OSIM Nr. R102355
ISSN Print 0034-7752
ISSN Online 2668-8212
Journal Metrics
* Impact Factor 2019: 1.755
* 5-Year IF: 1.351
* CiteScore: 2.2
* H index: 28

SPECIAL ISSUE >>>

REVISTA DE CHIMIE Latest Issue

LATEST ISSUE >>>

   Volume 71, 2020
   Volume 70, 2019
   Volume 69, 2018
   Volume 68, 2017
   Volume 67, 2016
   Volume 66, 2015
   Volume 65, 2014
   Volume 64, 2013
   Volume 63, 2012
   Volume 62, 2011
   Volume 61, 2010
   Volume 60, 2009
   Volume 59, 2008
   Volume 58, 2007
 
<<<< back

Revista de Chimie (Rev. Chim.), Year 2010, Volume 61, Issue 1,





Daniela Simina Stefan, Mihai Belcu, Mircea Stefan, Ioana Andreea Marinescu
Sorption of Hg2+ and Pb2+ Ions from Aqueous Solutions
on Corn Cobs Biomaterials
I. Study of sorption equilibrium of Hg2+ and Pb2+ cations on corn cobs

Abstract:

The sorption capacities of grinded corn cobs for Hg2+ and Pb2+ cations from wastewaters were established for various particle dimensions and pH values. The (local) structure of Hg2+ and Pb2+ sorbed on corn cobs biomass has been investigated by secondary electron microscopy (SEM) and energy-dispersive X-ray analysis (EDX). The sorption isotherms indicate a slightly greater affinity for the Pb2+ cations, compared to the Hg2+ ones. The Langmuir model equation satisfactorily characterizes the experimental results. The values of calculated free energy changes correspond to physical actions, IR spectres and the structural modifications evidenced by electronic microscopy (SEM) analysis on biomass samples after Hg2+ or Pb2+ ions retention indicate that the heavy -metals binding mechanism is mainly a physical interaction and ion exchange process. Keywords: copolymers, amide functional groups, mercury, lead, sorption, wastewaters

Issue: 2010, Volume 61, Issue 1
Pages:
download pdf   Download Pdf Article
Creative Commons License
This article is published under the Creative Commons Attribution 4.0 International License
 
<<<< back
 
PUBLISHING SECTION
Author Guidelines
 * Paper Drafting
 * Paper Template
 * Ethical Statement
 * Paper Submission
 * Author Payments
Ghidul Autorului (ro)
Submit Paper
Author's Page
Publishing Ethics
Open Access Policy
 Search Authors
 LATEST NEWS
REvista de Chimie Revista de Chimie - 70 de ani de aparitie neintrerupta.. detalii
dictionar English-Romanian Dictionary for Mechanical Engineering
(download pdf)
  News, Events
Crossref Member Badge
 DOI  logo
 Gold Open Access | Source=http://www.plos.org/  | Author=art designer at PLoS
Creative Commons License
 Conferences of Contemporary
 Chemistry
 Biblioteca Chimiei
 Materiale Plastice