Cited by 534Thermochemical Biomass Conversion ProcessesAdsorption and biosorption for pollutant removalBiodiesel Production and Applications

A review of biochar-based catalysts for chemical synthesis, biofuel production, and pollution control

Open access
Xiong, Xinni, Yu, Iris K.M., Cao, Leichang, Tsang, Daniel C.W., Zhang, Shicheng, Ok, Yong Sik·2017·Bioresource Technology

Abstract

This review addresses the use of biochar as a green and versatile catalyst support for emerging high-end applications beyond soil remediation, including chemical synthesis and biodiesel production from biomass, and pollutant degradation in the environment. Their catalytic performances are comparable or even superior to the conventional resin-, silica-, or carbon-based catalysts, owing to the favourable intrinsic features of biochar (various functional groups, intricate network of structures, etc.). Yet, distinctive active sites are needed for different applications. It is highlighted that the active site accessibility for substrates critically determines the performance, which is associated with the biochar physicochemical characteristics (-SO3H site density, pore size distribution, surface area, etc.). They show varying significance depending on the catalytic sites on biochar, which may be controlled via novel pre-/post-synthesis modifications. This review elucidates the links among catalytic performances, physicochemical properties, and pyrolysis/modification-induced features, advising the tailored production of application-oriented biochar-based catalyst in the future.

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Crossref · 10.1016/j.biortech.2017.06.163

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  • An abundant oxygen-containing functional group on the biochar matrix favors metal decoration.

    “Therefore, an abundant oxygen-containing functional group on the biochar matrix favors metal decoration (Xiong et al. 2017).”

    From Role of biochar toward carbon neutrality (2023) · cites this paper as Xiong et al. 2017

  • Owing to its controllable and tailorable electrical conductivity and inherent functional groups, biochar could be designed to have photonic, electronic, acoustic, and bio/redox interactions, making it a viable alternative to replace unsustainable solid C-based catalysts.

    “Owing to its controllable and tailorable electrical conductivity and inherent functional groups, biochar could be easily designed to have photonic, electronic, acoustic, and bio/redox interactions with other reactive substances, making it a viable alternative to replace unsustainable solid C-based catalysts.250, 251, 252, 253, 254”

    From Technologies and perspectives for achieving carbon neutrality (2021) · cites this paper as [251]

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Authors
Xiong, X., Yu, I. K. M., Cao, L., Tsang, D. C. W., Zhang, S., & Ok, Y. S.
Affiliations
  • Hong Kong Polytechnic University (HK)
  • Fudan University (CN)
  • Korea University (KR)
Corresponding author
Tsang, Daniel C.W.
Venue
Bioresource Technology
Publisher
Elsevier BV
Published
2017-12
Volume
246
Pages
254-270
ISSN
0960-8524 (ISSN-L)
OpenAlex
W2727927980
Cited by
532
References
93
Citations by year
2026: 28 · 2025: 45 · 2024: 58 · 2023: 56 · 2022: 71 · 2021: 81 · 2020: 82 · 2019: 76 · 2018: 30 · 2017: 4
FWCI
4.21
Type
journal article
Language
en
Open access
Locations
  • Bioresource Technology (publishedVersion)
  • PubMed (publishedVersion)
  • PolyU Institutional Research Archive (Hong Kong Polytechnic University) (submittedVersion, cc-by-nc-nd)
  • PolyU Institutional Research Archive (Hong Kong Polytechnic University) (submittedVersion)
  • Rare & Special e-Zone (The Hong Kong University of Science and Technology) (submittedVersion)
Funders
  • Environment and Conservation Fund (K-ZB78)
  • Hong Kong International Airport Environmental Fund (K-ZJKC)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
  • Physical Sciences › Engineering › Biomedical Engineering › Biodiesel Production and Applications
Keywords
biochar, catalyst supports, chemical synthesis, biodiesel production, biomass conversion, pollutant degradation, active site accessibility, pyrolysis, biochar modification, physicochemical properties, surface functional groups, pore size distribution, soil remediation
MeSH terms
Charcoal, Soil, Biomass, Biofuels

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