Cited by 439Advanced oxidation water treatmentPharmaceutical and Antibiotic Environmental ImpactsEnvironmental remediation with nanomaterials

Thermo activated persulfate oxidation of antibiotic sulfamethoxazole and structurally related compounds

Ji, Yuefei, Fan, Yan, Liu, Kuo, Kong, Deyang, Lu, Junhe·2015·Water Research

Abstract

The widespread occurrence of sulfonamides (e.g., sulfamethoxazole) in natural environment has raised growing concerns due to their potential to induce antibiotic-resistant genes. In this study, the degradation of SMX and related sulfonamides by thermo activated persulfate (PS) oxidation was investigated. Experimental results demonstrated that SMX degradation followed pseudo-first-order reaction kinetics. The pseudo-first-order rate constant (k(obs)) was increased markedly with increasing temperature and pH. The presence of bicarbonate manifested promoting effect on SMX degradation while fulvic acid reduced it. Radical scavenging tests revealed that the predominant oxidizing species was SO4(•-) at neutral pH. Aniline moiety in SMX molecule was confirmed to be the primary reactive site for SO4(•-) attack by comparison with substructural analogues. Reaction products were enriched by solid phase extraction (SPE) and analyzed by liquid chromatography-electrospray ionization-triple quadrupole mass spectrometry (LC-ESI-MS/MS). A total of 7 products derived from hydroxylation, sulfonamide S-N bond cleavage, aniline moiety oxidation and coupling reaction were identified, and transformation pathways of SMX oxidation were proposed. Degradation of sulfonamides was appreciably influenced by the heterocyclic ring present in the molecules. Results reveal that thermo activated PS oxidation could be an efficient approach for remediation of water contaminated by SMX and related sulfonamides.

Integrity signals

Registry

Crossref · 10.1016/j.watres.2015.09.005

Cites

82 of 82 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Ji, Y., Fan, Y., Liu, K., Kong, D., & Lu, J.
Affiliations
  • Nanjing Agricultural University (CN)
  • Ministry of Ecology and Environment (CN)
Corresponding author
Lu, Junhe
Venue
Water Research
Publisher
Elsevier BV
Published
2015-12
Volume
87
Pages
1-9
ISSN
0043-1354 (ISSN-L)
OpenAlex
W1409743805
Cited by
439
References
82
Citations by year
2026: 15 · 2025: 42 · 2024: 38 · 2023: 47 · 2022: 58 · 2021: 49 · 2020: 46 · 2019: 54 · 2018: 44 · 2017: 29 · 2016: 16 · 2015: 1
FWCI
19.87
Type
journal article
Language
en
Open access
closed
Locations
  • Water Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • China Postdoctoral Research Funds (2015M570454)
  • Jiangsu Planned Projects for Postdoctoral Research Funds (1402013A)
  • Priority Academic Program Development (PAPD)
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Advanced oxidation water treatment
  • Physical Sciences › Environmental Science › Pollution › Pharmaceutical and Antibiotic Environmental Impacts
  • Physical Sciences › Engineering › Biomedical Engineering › Environmental remediation with nanomaterials
Keywords
sulfamethoxazole, sulfonamides, sulfate radicals, antibiotic degradation, antibiotic resistance genes, transformation pathways, pseudo-first-order kinetics, water remediation
MeSH terms
Aniline Compounds, Anti-Bacterial Agents, Hot Temperature, Kinetics, Oxidation-Reduction, Sulfamethoxazole, Sulfates, Water Pollutants, Chemical

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review