Biochar based catalysts for the abatement of emerging pollutants: A review

Tam Do Minh, Jianzhi Song, Anjan Deb, Ligen Cha, Varsha Srivastava, Mika Sillanpää

Research output: Contribution to journalReview articlepeer-review

151 Citations (Scopus)

Abstract

Biochar has emerged as a new class of biomass-derived functional materials that can be obtained using a plethora of thermochemical conversion techniques. Biochar-based environmental catalysts have potential applications toward a positive, planet-level impact. Here, recent observations in the activated conversions of emerging contaminants are reviewed, highlighting the most influential advancements, including metal-free processes. The status quo of the underlying interaction mechanisms are summarized, revealing the active functional moieties, persistent free radicals, graphitic degree and electron transfer capacity collectively and synergistically regulate the catalytic potency. These remarkable features convey biochar's high activity and flexibility into viable chemo-redox, photo-, bio-, sono-, and electrocatalysis. Advanced coupling processes and some perspectives on future possibilities are proposed at the end.

Original languageEnglish
Article number124856
JournalChemical Engineering Journal
Volume394
DOIs
Publication statusPublished - 15 Aug 2020
Externally publishedYes

Keywords

  • Advanced coupling technologies
  • Biochar
  • Catalytic remediation
  • Emerging contaminants
  • Interaction mechanism

ASJC Scopus subject areas

  • General Chemistry
  • Environmental Chemistry
  • General Chemical Engineering
  • Industrial and Manufacturing Engineering

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