Document
type: Class

Continuant
type: Class

Entity
type: Class

Adsorption Science and Technology
type: Journal
type: Collection
type: Thing
type: Information Content Entity
type: Entity
type: Generically Dependent Continuant
type: Periodical
type: Document
publication venue for: Adsorption of heavy metal ions from aqueous solution onto sepiolite
type: Continuant

Generically Dependent Continuant
type: Class

RDF description of Adsorption of heavy metal ions from aqueous solution onto sepiolite - http://orbis.uaslp.mx/vivo/individual/scopus2779
rights: termsOfUse
date: 2026-08-28T02:11:27
publisher: vivo
type: Document

Article
type: Class

Information Content Entity
type: Class

Adsorption of heavy metal ions from aqueous solution onto sepiolite
type: Entity
type: Information Content Entity
accesstype: All Open Access, Bronze
related by: authorship_16323
has publication venue: Adsorption Science and Technology
estado: published
crisid: 2780
page end: 584
abstract: The adsorption capacity of sepiolite towards the removal of heavy metal ions from aqueous solution was studied in this work, with adsorption equilibrium data being obtained with a bath adsorber. The sepiolite sample was chemically stable over the pH range 2-12, but dissolved in acidic solutions with pH values less than 2. The Langmuir isotherm gave a better fit of the experimental adsorption equilibrium data, since the average absolute percentage deviation of the Langmuir isotherm was lower than that of the Freundlich isotherm. The adsorption capacity of sepiolite towards metal ions decreased in the following order: Cr(III) > Cd(II) > Cu(II) > Zn(II) > Ni(II) > Ag(I). Increasing the temperature from 15 °C to 35 °C led to an increase in the adsorption capacity. The capacity of sepiolite towards the adsorption of Cd(II) ions was diminished considerably on reducing the solution pH from 7 to 3. The effect of the solution pH was attributed to electrostatic interaction between the negatively charged sepiolite surface and the positively charged Cd(II) ions in the aqueous solution. The surface charge of sepiolite became less negative when Cd(II) ions were adsorbed onto the sepiolite surface. This result indicates that electrostatic interaction between the sepiolite surface and the Cd(II) ions in the aqueous solution played a very important role in determining the adsorption capacity of sepiolite. The adsorption of Cd(II) ions onto sepiolite at pH 7 was reversible when desorption was undertaken at pH 3, but not when desorption was undertaken at pH 7.
page start: 569
related by: authorship_16321
issue: 6
related by: authorship_16324
date time value: article date 2780
type: Thing
most specific type: Document
most specific type: Article
origen: scopus
related by: authorship_16322
doi: 10.1260/0263-6174.29.6.569
related by: authorship_16319
type: Document
e iscopus: 2-s2.0-84855246329
type: Continuant
type: Generically Dependent Continuant
volume: 29
related by: authorship_16320
type: Article
freetext keyword: Acidic solutions; Adsorbers; Adsorption capacities; Adsorption equilibria; Freundlich isotherm; Langmuir isotherm; Percentage deviation; pH range; pH value; Positively charged; Solution pH; Adsorption isotherms; Cadmium compounds; Chemicals removal (water treatment); Chromium; Chromium compounds; Desorption; Electrostatic separators; Electrostatics; Heavy metals; Metal ions; pH effects; Silver compounds; Solutions; Zinc compounds; Adsorption