Publons ID | 36330775 |
Wos ID | WOS:000330961900019 |
Doi | 10.1007/s00128-014-1205-x |
Title | Characteristics of Adsorption Interactions of Cadmium(II) onto Humin from Peat Soil in Freshwater and Seawater Media |
First Author | Andreas, Roy; Zhang, Jing; |
Last Author | |
Authors | Andreas, R; Zhang, J; |
Publish Date | MAR 2014 |
Journal Name | BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY |
Citation | 19 |
Abstract | The present study examined Cd solubility in pH 2-12 fresh and seawater media with and without humin to determine Cd species composition. The study, based on the Langmuir-Hinshelwood kinetics model, was conducted to determine the kinetic parameters of Cd(II) adsorption onto humin. We employed the Langmuir and Freundlich models to derive thermodynamic parameters. Aquo (Cd(H2O) (6) (2+) ) and chloro- (CdCl+ and CdCl2) complexes were responsible for Cd(II) adsorption onto humin. Results showed Cd as Cd(II) and Cd(H2O) (6) (+2) was water soluble at 2 < pH < 7; with a portion of the soluble Cd precipitating as Cd(OH)(2). The Cd(II) rate constant (k) in freshwater was 0.5 x 10(-3) (min(-1)), occurring in a single phase, while in seawater fast and slow phase values for k were 31.88 x 10(-3) and 6.2 x 10(-3) (min(-1)), respectively. The adsorption curves showed a better fit with the Langmuir than the Freundlich model. |
Publish Type | Journal |
Publish Year | 2014 |
Page Begin | 352 |
Page End | 357 |
Issn | 0007-4861 |
Eissn | 1432-0800 |
Url | https://www.webofscience.com/wos/woscc/full-record/WOS:000330961900019 |
Author | ROY ANDREAS, S.Si, M.Si, Ph.D |
File | 14202.pdf |
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