2015
DOI: 10.1080/1064119x.2015.1093048
|View full text |Cite
|
Sign up to set email alerts
|

Adsorption Behavior of Cr(VI) on Al-Fe Cointercalated Bentonite

Abstract: An efficient Al-Fe co-intercalated bentonite composite material (Al-Fe/Bent) able to remove hexavalent chromium (Cr(VI)) from aqueous solutions was prepared. The batch experiments studies were conducted to evaluate the adsorption performance of Cr(VI) contained in aqueous solution. The XRD results showed the spacing of layers of bentonite was increased due to the Downloaded by [University of Otago] at 14:26 08 October 2015 aluminum and iron polycation intercalated into the layer of bentonite. The removal rate … Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

0
6
0

Year Published

2019
2019
2022
2022

Publication Types

Select...
1
1

Relationship

0
2

Authors

Journals

citations
Cited by 2 publications
(6 citation statements)
references
References 35 publications
0
6
0
Order By: Relevance
“…The BC only adsorbed 7.1% of Cr(VI) within 120 min, indicating that BC was inactive for removal of Cr(VI). The Cr(VI) existed in the forms of anions (HCrO 4 − , Cr 2 O 7 2− and CrO 4 2− ) in solution, 25,26 and the surface of BC was negatively charged 27 . Therefore, a strong electrostatic repulsion force between Cr(VI) and BC resulted in the poor performance of Cr(VI) removal.…”
Section: Resultsmentioning
confidence: 99%
See 4 more Smart Citations
“…The BC only adsorbed 7.1% of Cr(VI) within 120 min, indicating that BC was inactive for removal of Cr(VI). The Cr(VI) existed in the forms of anions (HCrO 4 − , Cr 2 O 7 2− and CrO 4 2− ) in solution, 25,26 and the surface of BC was negatively charged 27 . Therefore, a strong electrostatic repulsion force between Cr(VI) and BC resulted in the poor performance of Cr(VI) removal.…”
Section: Resultsmentioning
confidence: 99%
“…The ionic forms of Cr(VI) and the activity of NZVI/BC under different pH values were responsible for these observations. The Cr(VI) species presented in the form of HCrO 4 − , Cr 2 O 7 2− and CrO 4 2− under varying pH conditions in the aqueous phase 25,26 . At low pH, the predominant species of Cr(VI) were HCrO 4 − and Cr 2 O 7 2− , and their removal was more easily due to the low adsorption free energy 26 .…”
Section: Resultsmentioning
confidence: 99%
See 3 more Smart Citations