Pb(II) sorption from aqueous solution by novel biochar loaded with nano-particles
Abstract
Novel sorbent (HBC) is prepared by introducing nano-particles (Maghemite and EDTA functionalized layered double hydroxides) on biochar surface. FTIR, XRD, SEM and EDS are used to characterize the biochar nanocomposites. Pb(II) sorption is highly dependent on solution pH. Sorption kinetics and isotherms indicate that Pb(II) sorption onto the sorbents follows pseudo-second order model and Langmuir isotherm. The maximum sorption capacity of Pb(II) onto HBC is up to146.84 mg g-1, higher than previously reported sorbents. The magnetic particles enable easy separation of HBC from aqueous solution by external magnetic fields. HBC can be used as effective sorbent for removal of heavy metals from wastewater.
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XRD peaks at 30.2°, 35.6°, 43.3°, 53.7°, 57.2°, and 62.9° correspond to γ-Fe2O3.
“The characteristic peaks of the spectrum were located at 30.2°, 35.6°, 43.3°, 53.7°, 57.2°, and 62.9° for γ-Fe2O3 (JCPDS no. 85-1436) [48].”
From Effect of CeO2-Reinforcement on Pb Absorption by Coconut Coir-Derived Magnetic Biochar (2023) · cites this paper as [48]
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- Authors
- Wang, C., & Wang, H.
- Affiliations
- Zhengzhou University (CN)
- Central South University (CN)
- Corresponding author
- Wang, Chongqing
- Venue
- Chemosphere
- Publisher
- Elsevier BV
- Published
- 2018-02
- Volume
- 192
- Pages
- 1-4
- ISSN
- 0045-6535 (ISSN-L)
- OpenAlex
- W2765887195
- Cited by
- 134
- References
- 3
- Citations by year
- 2026: 8 · 2025: 12 · 2024: 18 · 2023: 17 · 2022: 14 · 2021: 19 · 2020: 22 · 2019: 13 · 2018: 11
- FWCI
- 6.71
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Chemosphere (publishedVersion)
- PubMed (publishedVersion)
- 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
- lead(II) sorption, biochar nanocomposites, maghemite nanoparticles, heavy metal removal, wastewater treatment, magnetic adsorbent, sorption kinetics, Langmuir isotherm, pH effect on sorption, sorption capacity
- MeSH terms
- Adsorption, Charcoal, Edetic Acid, Ferric Compounds, Kinetics, Lead, Solutions, Water, Water Pollutants, Chemical, Nanoparticles
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