Cited by 260Advanced oxidation water treatmentEnvironmental remediation with nanomaterialsAdvanced Photocatalysis Techniques

A sustainable biochar catalyst synergized with copper heteroatoms and CO 2 for singlet oxygenation and electron transfer routes

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Wan, Zhonghao, Sun, Yuqing, Tsang, Daniel C. W., Yu, Iris K. M., Fan, Jiajun, Clark, James H., Zhou, Yaoyu, Cao, Xinde +2 more·2019·Green Chemistry

Abstract

Engineered biochar synergized from copper heteroatoms and CO 2 fosters non-radical persulfate activation for sustainable remediation.

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Crossref · 10.1039/c9gc01843c

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  • Ketonic group (C=O) with high electron density facilitates catalysis due to its nucleophilic nature.

    “while ketonic group (C=O) with high electron density facilitates plausible catalysis due to its nucleophilic nature.2,55”
  • Biochar pyrolyzed under high temperature (900 C) and carbon dioxide medium possesses higher density of ketonic C=O groups.

    “Our recent work revealed that biochar pyrolyzed under high temperature (900 °C) and carbon dioxide medium possessed higher density of ketonic C=O groups.55”
  • Wan et al. proved the formation of metastable oxyanion complexes on Cu species which posed nonnegligible direct oxidative potential towards electron donors, and that incorporation of Cu nanoparticles on biochar surface could benefit from the graphitic biochar structure to induce remarkable 1O2 generation.

    “Wan et al. proved the formation of metastable oxyanion complexes on Cu species which posed nonnegligible direct oxidative potential towards electron donors (i.e., organic pollutants), and the incorporation of Cu nanoparticles on biochar surface could benefit from the graphitic biochar structure to induce remarkable 1 O2 generation.55”
  • Copper-incorporated graphitic biochar was found to initiate the generation of 1O2 derived from surface reactive complexes attached on copper atoms and to accept unconfined electrons transferred from organic pollutants via graphitic carbon matrices.

    “The aforementioned copper incorporated graphitic biochar was found to initiate the generation of 1 O2 derived from surface reactive complexes attached on copper atoms and accept the unconfined electrons transferred from organic pollutants via graphitic carbon matrices.55”

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Cited by

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Authors
Wan, Z., Sun, Y., Tsang, D. C. W., Yu, I. K. M., Fan, J., Clark, J. H., Zhou, Y., Cao, X., Gao, B., & Ok, Y. S.
Affiliations
  • Hong Kong Polytechnic University (HK)
  • University of York (GB)
  • Shanghai Jiao Tong University (CN)
  • University of Florida (US)
  • Korea University (KR)
Corresponding author
Tsang, Daniel C. W.
Venue
Green Chemistry
Published
2019
Volume
21
Issue
17
Pages
4800-4814
ISSN
  • 1463-9262 (ISSN-L)
  • 1463-9270
OpenAlex
W2964404814
Cited by
260
References
85
Citations by year
2026: 20 · 2025: 22 · 2024: 30 · 2023: 27 · 2022: 47 · 2021: 42 · 2020: 57 · 2019: 15
FWCI
14.55
Type
journal article
Language
en
Open access
Locations
  • Green Chemistry (publishedVersion)
  • PolyU Institutional Research Archive (Hong Kong Polytechnic University) (submittedVersion)
  • White Rose Research Online (University of Leeds, The University of Sheffield, University of York) (submittedVersion)
  • Rare & Special e-Zone (The Hong Kong University of Science and Technology) (submittedVersion)
Funders
  • Research Grants Council, University Grants Committee (PolyU 15217818, E-PolyU503/17)
  • Hong Kong Polytechnic University
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Advanced oxidation water treatment
  • Physical Sciences › Engineering › Biomedical Engineering › Environmental remediation with nanomaterials
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Advanced Photocatalysis Techniques
Keywords
biochar catalyst, CO2 activation, singlet oxygenation, electron transfer, wastewater remediation, heterogeneous catalysis

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