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Magnetic Chitosan–Iron(III) Hydrogel as a Fast and Reusable Adsorbent for Chromium(VI) Removal
Abstract
The magnetic chitosan–iron(III) hydrogel (MCh-Fe) was synthesized and characterized by SEM, TG, XRD, and FT-IR and used to remove toxic chromium(VI) (Cr VI ) from aqueous solution. The adsorption of Cr VI onto the MCh-Fe adsorbent was fast and could reach equilibrium in less than 30 min. The adsorption was well described by the pseudo-second-order rate model. The equilibrium isotherm was better matched with the Langmuir model. The adsorption of Cr VI onto MCh-Fe was an endothermic and spontaneous process. The loading capacity of Cr VI on the adsorbent remained at a high level even after five cycles, showing that MCh-Fe can be used for repeated Cr VI removal. Column adsorption results indicated that below 0.5 mg L –1 Cr VI was found in the effluent up to about 30 and 350 bed volumes for two wastewaters containing 115.0 and 5.6 mg L –1 Cr VI, respectively. The Cr VI removal mechanism of MCh-Fe was also investigated.
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Gupta, V. K., Rastogi, A., & Nayak, A. (2010) · Journal of Colloid and Interface Science · doi:10.1016/j.jcis.2009.09.065 · Cited by 644
Cited by
Reddy, D. H. K., & Lee, S.-M. (2013) · Advances in Colloid and Interface Science · doi:10.1016/j.cis.2013.10.002 · Cited by 689
Chitosan modifications for adsorption of pollutants – A review
Saheed, I. O., Oh, W. D., & Suah, F. B. M. (2021) · Journal of Hazardous Materials · doi:10.1016/j.jhazmat.2020.124889 · Cited by 616
Review on recent progress in chitosan-based hydrogels for wastewater treatment application
Mohammadzadeh Pakdel, P., & Peighambardoust, S. J. (2018) · Carbohydrate Polymers · doi:10.1016/j.carbpol.2018.08.070 · Cited by 578
Thines, K. R., Abdullah, E. C., Mubarak, N. M., & Ruthiraan, M. (2017) · Renewable and Sustainable Energy Reviews · doi:10.1016/j.rser.2016.09.057 · Cited by 391
Wang, T., Zhang, L., Li, C., Yang, W., Song, T., Tang, C., Meng, Y., Dai, S., Wang, H., Chai, L., et al. (2015) · Environmental Science & Technology · doi:10.1021/es5061275 · Cited by 384
Metadata
- Authors
- Yu, Z., Zhang, X., & Huang, Y.
- Venue
- Industrial & Engineering Chemistry Research
- Publisher
- American Chemical Society (ACS)
- Published
- 2013-08-09
- Volume
- 52
- Issue
- 34
- Pages
- 11956-11966
- ISSN
- 0888-5885 (ISSN-L)
- 1520-5045
- OpenAlex
- W2028779559
- Cited by
- 180
- References
- 1
- FWCI
- 8.22
- Type
- journal article
- Language
- en
- Open access
- closed
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- Yu, Z., Zhang, X., & Huang, Y. (2013). Magnetic Chitosan–Iron(III) Hydrogel as a Fast and Reusable Adsorbent for Chromium(VI) Removal. Industrial & Engineering Chemistry Research. https://doi.org/10.1021/ie400781n
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