Removal of Cd(II) and Cu(II) from Aqueous Solution by Na+-Modified Pisha Sandstone
Joint Authors
Wang, Xia
Cui, Yongxing
Peng, Qi
Fan, Chenbin
Zhang, Zhiqin
Zhang, Xingchang
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-03-09
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Heavy metals have caused serious environmental issues, which are enriched during open-cast coal mining.
It is urgent to develop sustainable remediation materials to protect and restore the contaminated soil and aquifers in mining areas.
The feasibility of applying Pisha sandstone (PS) and Na+-modified Pisha sandstone (Na-PS) for adsorption of heavy metals was evaluated.
Na-PS exhibited maximum Cd(II) and Cu(II) removal rates of 65.9% and 99.8%, respectively, exceeding the corresponding values for PS (8.2% and 1.3%, respectively) in 1 × 10−3 M solution.
Efficient heavy metals adsorption occurred in the pH range 5.0–6.0.
The adsorption of Cu(II) and Cd(II) on PS and Na-PS was characterized by kinetic models and adsorption isotherms and was well represented by pseudo-second-order kinetics (R2 > 0.99) and the Langmuir and Freundlich isotherm models.
The values of the thermodynamic parameters indicated that the interactions were spontaneous endothermic reactions.
Binary solutions adsorption isotherms indicated that the linearity of the adsorption amount and initial concentration of Cu(II) and Cd(II) was better in certain ranges and the adsorbents were selective towards Cu(II) rather than Cd(II).
Therefore, PSs can be used as excellent adsorbents for Cu(II) and Cd(II) remediation from contaminated surface water.
American Psychological Association (APA)
Wang, Xia& Cui, Yongxing& Peng, Qi& Fan, Chenbin& Zhang, Zhiqin& Zhang, Xingchang. 2020. Removal of Cd(II) and Cu(II) from Aqueous Solution by Na+-Modified Pisha Sandstone. Journal of Chemistry،Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1181532
Modern Language Association (MLA)
Wang, Xia…[et al.]. Removal of Cd(II) and Cu(II) from Aqueous Solution by Na+-Modified Pisha Sandstone. Journal of Chemistry No. 2020 (2020), pp.1-13.
https://search.emarefa.net/detail/BIM-1181532
American Medical Association (AMA)
Wang, Xia& Cui, Yongxing& Peng, Qi& Fan, Chenbin& Zhang, Zhiqin& Zhang, Xingchang. Removal of Cd(II) and Cu(II) from Aqueous Solution by Na+-Modified Pisha Sandstone. Journal of Chemistry. 2020. Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1181532
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1181532