Regeneration of magnetic biochar derived from eucalyptus leaf residue for lead(II) removal
Abstract
Regeneration of Pb-loaded magnetic biochar prepared with eucalypts leaf residue was studied by using EDTA-2Na as a regenerant. The desorption efficiency was found to be 84.1% in 120 min with iron leaching amount of 1.1 mg g(-1). Higher SBET and pore volume were observed in regenerated magnetic biochars and no significant band shifts occurred in FTIR spectra during 6 regeneration cycles. The decrease of Pb(II) adsorption capacity (from 52.4 to 41.5 mg g(-1)) was only found in the first regeneration cycle. Magnetic separation performance of adsorbents was not significantly affected by multiple regeneration cycles.
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Unmodified magnetic biochar has poor adsorption performance.
“However, the absorption effect of unmodified magnetic biochar is poor.”
From Effect of CeO2-Reinforcement on Pb Absorption by Coconut Coir-Derived Magnetic Biochar (2023) · cites this paper as [20]
Biochar magnetically treated with Fe2+/Fe3+ solution or natural hematite can be easily separated from solution by external magnets.
“In general, biochar magnetically treated by means of Fe2+/Fe3+ solution or natural hematite can be easily separated from the solution by external magnets, but magnetic biochar without modification has poor adsorption performance [20].”
From Effect of CeO2-Reinforcement on Pb Absorption by Coconut Coir-Derived Magnetic Biochar (2023) · cites this paper as [20]
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Effect of CeO2-Reinforcement on Pb Absorption by Coconut Coir-Derived Magnetic Biochar
Yang, Y., Shan, R., Xiao, Y., Zhao, F., Yuan, H., & Chen, Y. (2023) · International Journal of Molecular Sciences · doi:10.3390/ijms24031974 · Cited by 20 · see citing works
- Authors
- Wang, S.-Y., Tang, Y.-K., Chen, C., Wu, J.-T., Huang, Z., Mo, Y.-Y., Zhang, K.-X., & Chen, J.-B.
- Affiliations
- Guangxi University (CN)
- ORCID
- Chen, Cheng
- Venue
- Bioresource Technology
- Publisher
- Elsevier BV
- Published
- 2015-06
- Volume
- 186
- Pages
- 360-364
- ISSN
- 0960-8524 (ISSN-L)
- OpenAlex
- W2001903369
- Cited by
- 117
- References
- 0
- Citations by year
- 2026: 8 · 2025: 7 · 2024: 15 · 2023: 18 · 2022: 14 · 2021: 13 · 2020: 5 · 2019: 13 · 2018: 6 · 2017: 12 · 2016: 5 · 2015: 1
- FWCI
- 5.30
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Bioresource Technology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Natural Science Foundation of China (51168001)
- Special Fund from the Central Government of China for Heavy Metal Pollution Prevention (20140944)
- 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
- magnetic biochar, lead removal, adsorbent regeneration, heavy metal adsorption, iron leaching, adsorption capacity, magnetic separation, biomass-derived adsorbents
- MeSH terms
- Adsorption, Charcoal, China, Edetic Acid, Eucalyptus, Iron, Lead, Magnetics, Water Pollutants, Chemical, Spectroscopy, Fourier Transform Infrared, Water Purification, Plant Leaves
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