Reusable kaolin impregnated aminated chitosan composite beads for efficient removal of Congo red dye: isotherms, kinetics and thermodynamics studies


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kaolin chitosan

Author contributions
A.M.O. and M.A.T. proposed the research concept; M.M.A. conducted the experiments. M.M.A., A.M.O. ana-
lyzed, interpreted the data and wrote the manuscript; M.A.T., A.M.O., M.S.E., and A.M.H. revised the manuscript.
Funding
Open access funding provided by The Science, Technology & Innovation Funding Authority (STDF) in coopera-
tion with The Egyptian Knowledge Bank (EKB).
Competing interests
The authors declare no competing interests.
Additional information
Supplementary Information The online version contains supplementary material available at 
https:// doi. org/ 
10. 1038/ s41598- 022- 17305-w
.
Correspondence and requests for materials should be addressed to A.M.O.
Reprints and permissions information is available at 
www.nature.com/reprints
.
Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and 
institutional affiliations.


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Vol.:(0123456789)
Scientific Reports | (2022) 12:12972 | 
https://doi.org/10.1038/s41598-022-17305-w
www.nature.com/scientificreports/
Open Access This article is licensed under a Creative Commons Attribution 4.0 International 
License, which permits use, sharing, adaptation, distribution and reproduction in any medium or 
format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the 
Creative Commons licence, and indicate if changes were made. The images or other third party material in this 
article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the 
material. If material is not included in the article’s Creative Commons licence and your intended use is not 
permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from 
the copyright holder. To view a copy of this licence, visit 
http:// creat iveco mmons. org/ licen ses/ by/4. 0/
.
© The Author(s) 2022


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