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Cited by 107Arsenic contamination and mitigationAdsorption and biosorption for pollutant removalEnvironmental remediation with nanomaterials

The DOI matches its Crossref record; 65 of the 65 references it cites were found in a registry or an index.

Chitosan functionalized iron nanosheet for enhanced removal of As(III) and Sb(III): Synergistic effect and mechanism

Open access
Zeng, Jianqiang, Qi, Pengfei, Shi, Junjie, Pichler, Thomas, Wang, Fuwei, Wang, Yan, Sui, Kunyan·2020·Chemical Engineering Journal

Abstract

Abstract Neutral trivalent arsenic (As(III)) and antimony (Sb(III)) species are more toxic and harder to remove from wastewater environment than their pentavalent counterparts. Herein, a natural polysaccharide chitosan (CS) functionalized iron nanosheet using an in-situ doping method was designed, aiming to attract As(III) and Sb(III) from aqueous solution. The surface area of the optimum sample was 111.8 cm2/g, a good dispersion of the iron nanocomposite was observed by the TEM and element mapping characterization. In the batch adsorption experiment the factors of doping contents of CS and solution properties (pH, co-existing anions and humic acid) were studied systematically. The result showed that 0.5 wt% CS functionalized iron nanosheet had higher removal capacity, affinity, selectivity and reusability for Sb(III) than As(III). The optimum adsorption were achieved at the adsorbent dosage of 0.4 g/L at a wide pH values, and the maximum adsorption capacity were 108.6 and 138.8 mg/g for As(III) and Sb(III) calculated from Langmuir non-linear fitting, respectively. Both As(III) and Sb(III) removal were independent on pH values, indicating electrostatic attraction was not the dominate removal mechanism. The detailed removal mechanism was confirmed by a synergetic interaction of As-Fe/Sb-Fe complexes and hydrogen bonding using the combined characterization of FTIR and XPS spectra. This study demonstrated that the CS functionalized iron nanosheet with the properties of environmental friendly, low-cost and facile preparation could have potential applications in water purification.

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Crossref · 10.1016/j.cej.2019.122999

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Metadata

Authors
Zeng, J., Qi, P., Shi, J., Pichler, T., Wang, F., Wang, Y., & Sui, K.
Affiliations
  • Qingdao University (CN)
  • Yantai University (CN)
  • University of Bremen (DE)
Corresponding author
  • Qi, Pengfei
  • Sui, Kunyan
Venue
Chemical Engineering Journal
Publisher
Elsevier BV
Published
2020-02
Volume
382
Pages
122999
ISSN
1385-8947 (ISSN-L)
OpenAlex
W2978114545
Cited by
107
References
65
Citations by year
2026: 6 · 2025: 14 · 2024: 12 · 2023: 17 · 2022: 21 · 2021: 28 · 2020: 9
FWCI
6.32
Type
journal article
Language
en
Open access
Licence
  • cc-by-nc-nd
  • www.elsevier.com/tdm/userlicense/1.0/ (tdm)
  • www.elsevier.com/legal/tdmrep-license (tdm)
Locations
  • Chemical Engineering Journal (publishedVersion)
  • Media (https://www.suub.uni-bremen.de/) (submittedVersion, cc-by-nc-nd)
  • Staats- und Universitätsbibliothek Bremen
Funders
Natural Science Foundation of Shandong Province
Topics
  • Physical Sciences › Environmental Science › Environmental Chemistry › Arsenic contamination and mitigation
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
  • Physical Sciences › Environmental Science › Environmental Engineering › Environmental remediation with nanomaterials
Keywords
chitosan, arsenic(III) removal, antimony(III) removal, adsorption, in situ doping, polysaccharide functionalization, hydrogen bonding, adsorption mechanism, heavy metal removal from water, adsorbent reusability, pH effect, humic acid

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