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Cited by 167Adsorption and biosorption for pollutant removalEnvironmental remediation with nanomaterialsCoagulation and Flocculation Studies

Simultaneous functionalization and magnetization of biochar via NH3 ambiance pyrolysis for efficient removal of Cr (VI)

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Mian, Md Manik, Liu, Guijian, Yousaf, Balal, Fu, Biao, Ullah, Habib, Ali, Muhammad Ubaid, Abbas, Qumber, Mujtaba Munir, Mehr Ahmed +1 more·2018·Chemosphere
DOI 10.1016/j.chemosphere.2018.06.021
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Abstract

Enhancing biochar adsorption capabilities and recollection ability is essential for efficient biochar application. In this study, Nitrogen-doped magnetic biochar was prepared via one-step heating of FeCl 3-laden agar biomass under NH 3 environment. Synthesized magnetic biochar ABF-N 800 shows a maximum Cr (VI) adsorption capacity up to 142.86 mg g-1, outperforming that of magnetic biochar and many other previously reported materials. Moreover, a significant increase of magnetic properties obtained by NH 3 ambiance pyrolysis enables easy separation of the adsorbent from the solution after treated with Cr (VI). The physiochemical properties of composites characterized by SEM, EDS, XRD, XPS, VSM, BET surface and pore, Elemental content, and FTIR analysis. The NH 3 ambiance pyrolysis confirmed as an efficient process for surface modification, increased magnetic properties and activated N-functional groups. The Langmuir isotherm model and pseudo-second-order model are applicable for describing adsorption behavior. The thermodynamic study shows that the adsorption was spontaneous and endothermic. The present results warrant the application of simultaneous functionalized and magnetized biochar for Cr (VI) contaminated wastewater treatment.

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Crossref · 10.1016/j.chemosphere.2018.06.021

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  • The N2 adsorption isotherms of both samples belonged to the type IV mode with a clear hysteresis loop, indicating mesoporous structures.

    “As seen from Figure 2a, the N2 adsorption isotherms of both samples belonged to the type IV mode with a clear hysteresis loop according to the International Union of Pure and Applied Chemistry (IUPAC) classification, which indicates the presence of mesoporous structures in them [28,29,30].”

    From Effect of CeO2-Reinforcement on Pb Absorption by Coconut Coir-Derived Magnetic Biochar (2023) · cites this paper as [28]

  • Mian et al. fabricated magnetic N-doped biochar under 800 °C with ammonia purging and found that introduced nitrogen dopants caused reduction of Cr(VI) into Cr(III).

    “Mian et al. fabricated a magnetic N-doped biochar under similar operational conditions (800 °C with ammonia purging) and found those introduced nitrogen dopants caused the reduction of Cr(Ⅵ) into Cr(Ⅲ).165”

    From Sustainable remediation with an electroactive biochar system: mechanisms and perspectives (2020) · cites this paper as [165]

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References 71 · Cited by 167

Authors
Mian, M. M., Liu, G., Yousaf, B., Fu, B., Ullah, H., Ali, M. U., Abbas, Q., Mujtaba Munir, M. A., & Ruijia, L.
Affiliations
University of Science and Technology of China (CN)
Corresponding author
Liu, Guijian
ORCID
Venue
Chemosphere
Publisher
Elsevier BV
Published
2018-10
Volume
208
Pages
712-721
ISSN
0045-6535 (ISSN-L)
DOI
10.1016/j.chemosphere.2018.06.021
OpenAlex
W2805946478
Cited by
167
References
71
Citations by year
2026: 12 · 2025: 17 · 2024: 21 · 2023: 16 · 2022: 40 · 2021: 18 · 2020: 24 · 2019: 17 · 2018: 2
FWCI
6.67
Type
journal article
Language
en
Open access
Licence
Locations
  • Chemosphere (publishedVersion)
  • PubMed (publishedVersion)
  • OpenMETU (Middle East Technical University) (submittedVersion, cc-by-nc-nd)
Funders
  • National Basic Research Program of China (2014CB238903)
  • National Natural Science Foundation of China (41672144, 41173032, 41373110)
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
  • Physical Sciences › Engineering › Biomedical Engineering › Environmental remediation with nanomaterials
  • Physical Sciences › Environmental Science › Water Science and Technology › Coagulation and Flocculation Studies
Keywords
biochar, nitrogen doping, magnetic biochar, Cr(VI) adsorption, adsorbent regeneration, wastewater treatment, adsorption kinetics, adsorption thermodynamics, Langmuir isotherm, pseudo-second-order kinetics
MeSH terms
Adsorption, Ammonia, Charcoal, Chromium, Magnetics, Thermodynamics, Water Pollutants, Chemical, Wastewater

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