Cited by 688Advanced oxidation water treatmentEnvironmental remediation with nanomaterialsPer- and polyfluoroalkyl substances research

Activation of Persulfates by Graphitized Nanodiamonds for Removal of Organic Compounds

Lee, Hongshin, Kim, Hyoung-il, Weon, Seunghyun, Choi, Wonyong, Hwang, Yu Sik, Seo, Jiwon, Lee, Changha, Kim, Jae-Hong·2016·Environmental Science & Technology

Abstract

This study introduces graphited nanodiamond (G-ND) as an environmentally friendly, easy-to-regenerate, and cost-effective alternative catalyst to activate persulfate (i.e., peroxymonosulfate (PMS) and peroxydisulfate (PDS)) and oxidize organic compounds in water. The G-ND was found to be superior for persulfate activation to other benchmark carbon materials such as graphite, graphene, fullerene, and carbon nanotubes. The G-ND/persulfate showed selective reactivity toward phenolic compounds and some pharmaceuticals, and the degradation kinetics were not inhibited by the presence of oxidant scavengers and natural organic matter. These results indicate that radical intermediates such as sulfate radical anion and hydroxyl radical are not majorly responsible for this persulfate-driven oxidation of organic compounds. The findings from linear sweep voltammetry, thermogravimetric analysis, Fourier transform infrared spectroscopy, and electron paramagnetic resonance spectroscopy analyses suggest that the both persulfate and phenol effectively bind to G-ND surface and are likely to form charge transfer complex, in which G-ND plays a critical role in mediating facile electron transfer from phenol to persulfate.

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Crossref · 10.1021/acs.est.6b02079

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  • Partially graphitized nanodiamond composed of a sp3-hybridized core surrounded by a sp2-hybridized carbon layer exhibits excellent electrocatalysis compared with inert pristine nanodiamond, confirming the critical role of conjugated carbon units.

    “Lee et al. further verified that partially graphitized nanodiamond composed of a sp 3 -hybridized core surrounded by sp 2hybridized carbon layer exhibited excellent electrocatalysis compared with inert pristine nanodiamond, confirming the critical role of conjugated carbon units.24”

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Authors
Lee, H., Kim, H.-I., Weon, S., Choi, W., Hwang, Y. S., Seo, J., Lee, C., & Kim, J.-H.
Affiliations
  • Yale University (US)
  • Pohang University of Science and Technology (KR)
  • Korea Institute of Toxicology (KR)
  • Ulsan National Institute of Science and Technology (KR)
Corresponding author
  • Lee, Changha
  • Kim, Jae-Hong
Venue
Environmental Science & Technology
Published
2016-09-02
Volume
50
Issue
18
Pages
10134-10142
ISSN
  • 0013-936X (ISSN-L)
  • 1520-5851
OpenAlex
W2509538092
Cited by
688
References
42
Citations by year
2026: 28 · 2025: 49 · 2024: 78 · 2023: 82 · 2022: 128 · 2021: 90 · 2020: 83 · 2019: 78 · 2018: 44 · 2017: 27 · 2016: 1
FWCI
29.65
Type
journal article
Language
en
Open access
closed
Locations
  • Environmental Science & Technology (publishedVersion)
  • PubMed (publishedVersion)
  • Open Access System for Information Sharing (Pohang University of Science and Technology) (submittedVersion)
  • Scholarworks@UNIST (Ulsan National Institute of Science and Technology) (submittedVersion)
Funders
  • National Research Foundation of Korea (NRF-2015R1A2A1A15055840, NRF-2015R1A5A7037825)
  • Korea Institute of Toxicology
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Advanced oxidation water treatment
  • Physical Sciences › Engineering › Biomedical Engineering › Environmental remediation with nanomaterials
  • Physical Sciences › Environmental Science › Environmental Chemistry › Per- and polyfluoroalkyl substances research
Keywords
persulfate activation, peroxymonosulfate, persulfate, advanced oxidation processes, phenol degradation, pharmaceutical removal, organic pollutant removal, charge-transfer complexes, electron transfer, sulfate radical anion, hydroxyl radicals, natural organic matter, catalyst regeneration
MeSH terms
Organic Chemicals, Hydroxyl Radical, Phenol, Nanotubes, Carbon, Nanodiamonds

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