A novel magnetic biochar efficiently sorbs organic pollutants and phosphate
Abstract
Biochar derived from agricultural biomass waste is increasingly recognized as a multifunctional material for agricultural and environmental applications. Three novel magnetic biochars (MOP250, MOP400, MOP700) were prepared by chemical co-precipitation of Fe3+/Fe2+ on orange peel powder and subsequently pyrolyzing under different temperatures (250, 400 and 700 °C), which resulted in iron oxide magnetite formation and biochar preparation in one-step. The MOP400 was comprised of nano-size magnetite particles and amorphous biochar, and thus exhibited hybrid sorption capability to efficiently remove organic pollutants and phosphate from water. For organic pollutants, MOP400 demonstrated the highest sorption capability, and even much larger than the companion non-magnetic biochar (OP400). For phosphate, magnetic biochars, especially MOP250, demonstrated much higher sorption capability than the companion non-magnetic biochars. No significantly competitive effect between organic pollutant and phosphate was observed. These suggest that the magnetic biochar is a potential sorbent to remove organic contaminants and phosphate simultaneously from wastewater.
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Organic pollutants such as phenols, antibiotics, and herbicides can be highly adsorbed onto biochar.
“Organic pollutants such as phenols, antibiotics, herbicides can be highly adsorbed onto biochar (Chen etal. 2011a, b).”
From Mechanisms and adsorption capacities of biochar for the removal of organic and inorganic pollutants from industrial wastewater (2021) · cites this paper as Chen et al. 2011a, b
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- Authors
- Chen, B., Chen, Z., & Lv, S.
- Affiliations
- Zhejiang University (CN)
- Corresponding author
- Chen, Baoliang
- Venue
- Bioresource Technology
- Publisher
- Elsevier BV
- Published
- 2011-01
- Volume
- 102
- Issue
- 2
- Pages
- 716-723
- ISSN
- 0960-8524 (ISSN-L)
- OpenAlex
- W2025515113
- Cited by
- 1,026
- References
- 3
- Citations by year
- 2026: 54 · 2025: 57 · 2024: 84 · 2023: 78 · 2022: 104 · 2021: 119 · 2020: 114 · 2019: 94 · 2018: 68 · 2017: 71 · 2016: 68 · 2015: 42 · 2014: 33 · 2013: 25 · 2012: 9
- FWCI
- 12.66
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Bioresource Technology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Ministry of Education of the People's Republic of China (J20091588)
- Foundation for the Author of National Excellent Doctoral Dissertation of the People's Republic of China (200765)
- Natural Science Foundation of Zhejiang Province
- National Natural Science Foundation of China (20737002, 20977081)
- 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 › Waste Management and Disposal › Phosphorus and nutrient management
- Keywords
- magnetic biochar, orange peel, co-precipitation synthesis, pyrolysis temperature, organic pollutant sorption, phosphate removal, wastewater treatment, agricultural waste biomass, hybrid sorbents, competitive adsorption
- MeSH terms
- Adsorption, Charcoal, Elements, Magnetics, Naphthalenes, Phosphates, Regression Analysis, Temperature, Toluene, Water Pollutants, Chemical, Porosity, Spectroscopy, Fourier Transform Infrared, Microscopy, Electron, Transmission
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