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Cited by 41Heavy metals in environmentArsenic contamination and mitigationAdsorption and biosorption for pollutant removal

Effect of arsenate on adsorption of Cd(II) by two variable charge soils

Liang, Jing, Xu, Renkou, Jiang, Xin, Wang, Yong, Zhao, Anzhen, Tan, Wenfeng·2007·Chemosphere
DOI 10.1016/j.chemosphere.2006.11.057
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Abstract

The effect of arsenate on Cd(II) adsorption in two variable charge soils and the desorption of Cd(II) pre-adsorbed in the presence of arsenate were studied. The batch type experiments showed, the presence of arsenate led to increase in Cd(II) adsorption and the desorption of pre-adsorbed Cd(II). Further it was observed that the extent of adsorption and desorption of Cd(II) was greatly influenced by the initial concentrations of arsenate and Cd(II), the solution pH, and the nature of the soils. In general the increase in arsenate concentration and pH favored the uptake of Cd(II). Moreover, the arsenate concentration influenced more in Hyper-Rhodic Ferralsol than Rhodic Ferralsol at least for the Cd(II) adsorption/desorption. This may be due to the content of Fe/Al oxides in these soils. The larger the content of Fe/Al oxides, the more the adsorption of arsenate by the soil, hence greater the uptake of Cd(II). It can be assumed that the enhanced Cd(II) adsorption was mainly due to the increase in net negative surface charge of the soil induced by the adsorption of arsenate, because the presence of arsenate led to the decrease in zeta potential of these soil suspensions. The increase of electrostatically adsorbed Cd(II) was responsible for the increase in the desorption of Cd(II) pre-adsorbed in the presence of arsenate.

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Crossref · 10.1016/j.chemosphere.2006.11.057

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  • Heavy metals sorbed through electrostatic attraction were replaced by neutral salts (e.g., KNO3).

    “However, the heavy metals sorbed through the electrostatic attraction were replaced by neutral salts (e.g., KNO3).”

    From Chemical Processes Affecting the Mobility of Heavy Metals and Metalloids in Soil Environments (2016) · cites this paper as [46]

  • Liang et al. reported that the presence of arsenate and chromate increased the sorption of Zn, Cd, and Cu onto variable charge minerals and soils due to the increase in negative surface charge for the specific adsorption of these anions.

    “Liang et al. [45, 46] also reported that the presence of arsenate and chromate increased the sorption of Zn, Cd, and Cu onto variable charge minerals and soils due to the increase in negative surface charge for the specific adsorption of these anions.”

    From Chemical Processes Affecting the Mobility of Heavy Metals and Metalloids in Soil Environments (2016) · cites this paper as [46]

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References 52 · Cited by 41

Authors
Liang, J., Xu, R., Jiang, X., Wang, Y., Zhao, A., & Tan, W.
Affiliations
  • Chinese Academy of Sciences (CN)
  • Huazhong Agricultural University (CN)
ORCID
Venue
Chemosphere
Publisher
Elsevier BV
Published
2007-05
Volume
67
Issue
10
Pages
1949-1955
ISSN
0045-6535 (ISSN-L)
DOI
10.1016/j.chemosphere.2006.11.057
OpenAlex
W2053629413
Cited by
41
References
52
Citations by year
2026: 2 · 2025: 1 · 2024: 3 · 2023: 2 · 2022: 6 · 2021: 4 · 2020: 2 · 2019: 1 · 2018: 1 · 2016: 1 · 2015: 4 · 2014: 1 · 2013: 2 · 2012: 5
FWCI
1.68
Type
journal article
Language
en
Open access
closed
Licence
www.elsevier.com/tdm/userlicense/1.0/ (tdm)
Locations
  • Chemosphere (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Natural Science Foundation of China
Topics
  • Physical Sciences › Environmental Science › Pollution › Heavy metals in environment
  • Physical Sciences › Environmental Science › Environmental Chemistry › Arsenic contamination and mitigation
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
Keywords
arsenate, cadmium adsorption, cadmium desorption, variable charge soils, Rhodic Ferralsol, soil surface charge, zeta potential, electrostatic adsorption, solution pH, heavy metal contamination
MeSH terms
Adsorption, Arsenates, Hydrogen-Ion Concentration, Soil, Soil Pollutants, Solutions, Cadmium Compounds

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