Cited by 70Carbon Dioxide Capture TechnologiesThermochemical Biomass Conversion ProcessesAdsorption and biosorption for pollutant removal

Nitrogen enriched biochar used as CO2 adsorbents: a brief review

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Qiao, Yuanting, Wu, Chunfei·2022·Carbon Capture Science & Technology

Abstract

It is widely acknowledged that the increasing CO2 concentration has led to the rise of temperature in the earth. Thus, capturing CO2 to alleviate environmental catastrophic is becoming important and urgent. Among the CO2 sorbents reported, solid adsorbents are advantageous in CO2 adsorption, CO2/N2 selectivity, easy operation and good regeneration ability. Biochar-based sorbents are promising for CO2 capture because they are self-sufficient in energy requirements, wide availability, renewability, low cost, and high porous structure. In addition, N-containing functional groups are used to improve the capability of CO2 adsorption of biochar. This review aims to evaluate the preparation and performance of nitrogen-enriched biochar for CO2 capture. Throughout this review paper, the current N-containing precursors and biomass, as well as the technologies for the preparation of N-rich biochar are discussed. It is concluded that cheaper and more sustainable ways should be proceeded to produce N-rich biochar in the field of CO2 capture research.

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Authors
Qiao, Y., & Wu, C.
Affiliations
Queen's University Belfast (GB)
Corresponding author
Wu, Chunfei
Venue
Carbon Capture Science & Technology
Publisher
Elsevier BV
Published
2022-03
Volume
2
Pages
100018
ISSN
2772-6568 (ISSN-L)
OpenAlex
W3216062932
Cited by
70
References
108
Citations by year
2026: 7 · 2025: 15 · 2024: 14 · 2023: 18 · 2022: 16
FWCI
5.13
Type
journal article
Language
en
Open access
Locations
  • Carbon Capture Science & Technology (publishedVersion, cc-by)
  • Research Portal (Queen's University Belfast) (publishedVersion, cc-by)
  • Cronfa (Swansea University) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • H2020 Marie Skłodowska-Curie Actions (823745)
  • China Scholarship Council (201706880031)
  • Horizon 2020
Topics
  • Physical Sciences › Engineering › Mechanical Engineering › Carbon Dioxide Capture Technologies
  • Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
Keywords
CO2 capture, CO2 adsorption, CO2/N2 selectivity, biomass precursors, biochar preparation, porous carbon, adsorbent regeneration

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