Cited by 486Microbial Fuel Cells and BioremediationEnvironmental remediation with nanomaterialsAdsorption and biosorption for pollutant removal

Applications of biochar in redox-mediated reactions

Yuan, Yong, Bolan, Nanthi, Prévoteau, Antonin, Vithanage, Meththika, Biswas, Jayanta Kumar, Ok, Yong Sik, Wang, Hailong·2017·Bioresource Technology

Abstract

Biochar is chemically more reduced and reactive than the original feedstock biomass. Graphite regions, functional groups, and redox-active metals in biochar contribute to its redox characteristics. While the functional groups such as phenolic species in biochar are the main electron donating moieties (i.e., reducers), the quinones and polycondensed aromatic functional groups are the components accepting electrons (oxidants). The redox capacity of biochar depends on feedstock properties and pyrolysis conditions. This paper aims to review and summarize the various synthesis techniques for biochars and the methods for probing their redox characteristics. We review the abiotic and microbial applications of biochars as electron donors, electron acceptors, or electron shuttles for pollutant degradation, metal(loid)s (im)mobilization, nutrient transformation, and discuss the underlying mechanisms. Furthermore, knowledge gaps that exist in the exploration and differentiation of the electron transfer mechanisms involving biochars are also identified.

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Crossref · 10.1016/j.biortech.2017.06.154

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103 of 103 references verified0 citation errors · 0 not checkable

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  • Biochar can also be produced by other thermochemical processes, including hydrothermal carbonization, gasification, torrefaction, and microwave-assisted pyrolysis.

    “However, recent studies have shown that biochar can also be produced by other thermochemical processes, e.g., hydrothermal carbonization, gasification, torrefaction, and microwave-assisted pyrolysis (Kambo and Dutta 2015;Vithanage et al. 2017;Yuan et al. 2017).”

    From Biochar and its importance on nutrient dynamics in soil and plant (2020) · cites this paper as Yuan et al. 2017

  • The electron-shuttle scenario reflects the electrochemical properties of biochar and proves superior electron accepting capacity and electron donating capacity from the sp2-hybridized graphitic carbon lattice.

    “The electron-shuttle scenario reflects the electrochemical properties of biochar, which further proves the superior electron accepting capacity (EAC) and electron donating capacity (EDC) from the sp 2hybridized graphitic carbon lattice.27”

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Authors
Yuan, Y., Bolan, N., Prévoteau, A., Vithanage, M., Biswas, J. K., Ok, Y. S., & Wang, H.
Affiliations
  • Guangdong University of Technology (CN)
  • CRC CARE (AU)
  • Ghent University (BE)
  • University of Sri Jayewardenepura (LK)
  • University of Kalyani (IN)
  • Korea University (KR)
  • Zhejiang A & F University (CN)
Corresponding author
Yuan, Yong
Venue
Bioresource Technology
Publisher
Elsevier BV
Published
2017-12
Volume
246
Pages
271-281
ISSN
0960-8524 (ISSN-L)
OpenAlex
W2731374170
Cited by
486
References
103
Citations by year
2026: 55 · 2025: 58 · 2024: 51 · 2023: 64 · 2022: 51 · 2021: 79 · 2020: 56 · 2019: 41 · 2018: 24 · 2017: 5
FWCI
3.20
Type
journal article
Language
en
Open access
closed
Locations
  • Bioresource Technology (publishedVersion)
  • PubMed (publishedVersion)
  • Ghent University Academic Bibliography (Ghent University) (publishedVersion)
  • Ghent University Academic Bibliography (Ghent University) (submittedVersion)
  • NOVA (University of Newcastle Australia) (submittedVersion)
Funders
  • National Natural Science Foundation of China (51678162)
  • Guangdong Natural Science Funds for Distinguished Young Scholar (2014A030306033)
  • Department of Science and Technology
  • Government of India under INSPIRE Fellowship Programme (1F131101)
Topics
  • Physical Sciences › Environmental Science › Environmental Engineering › Microbial Fuel Cells and Bioremediation
  • Physical Sciences › Engineering › Biomedical Engineering › Environmental remediation with nanomaterials
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
Keywords
biochar, redox properties, electron shuttles, electron donors, electron acceptors, pyrolysis conditions, biochar production, phenolic functional groups, quinones, redox-active metals, pollutant degradation, nutrient transformation, microbial applications, electron transfer mechanism
MeSH terms
Charcoal, Graphite, Oxidation-Reduction, Biomass

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