Cited by 72Advanced oxidation water treatmentUltrasound and Cavitation PhenomenaAdvanced Photocatalysis Techniques

Influence of inorganic ions and selected emerging contaminants on the degradation of Methylparaben: A sonochemical approach

Sasi, Subha, Rayaroth, Manoj P., Devadasan, Dineep, Aravind, Usha K., Aravindakumar, Charuvila T.·2015·Journal of Hazardous Materials

Abstract

The study on the possible pathway of hydroxyl radicals mediated sonolytic degradation of paraben in water is reported. Methylparaben (MPB) which is the most utilized of paraben family is selected as a model emerging pollutant. The influence of common anions and some selected emerging contaminants that may coexist in typical water matrix on the degradation pattern is analyzed alongside. Among the anions, carbonate presents a negative influence which is attributed to the competition for OH radical. Some emerging contaminants also showed negative impact on degradation as was clear from HPLC data. The intermediates, analyzed by LC-Q-TOF-MS include hydroxylated and hydrolytic products. Three major steps (aromatic hydroxylation, hydroxylation at the ester chain and hydrolysis) are proposed to involve in the reaction of OH radical with MPB which ultimately leads to mineralization. The intensity of formation and decay of mono and dihydroxy products of MPB in the presence of additives have also been evaluated. COD analysis indicates a percentage reduction of 98% at 90 min of sonolysis and further increase in the degradation time resulted complete mineralization, which became evident from the mass spectrometric data. MTT assay revealed considerable decrease in the potential cytotoxicity.

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Crossref · 10.1016/j.jhazmat.2015.06.072

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  • The addition of carbonate ions reduced the sonochemical degradation of many pollutants; the degradation of methyl paraben reduced to 80% from 100% in 90 min with the addition of 100 ppm of carbonate ions.

    “The addition of carbonate ions reduced the sonochemical degradation of many pollutants. The degradation of methyl paraben reduced to 80% from 100% in 90 min with the addition of 100 ppm of carbonate ions [123].”

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Authors
Sasi, S., Rayaroth, M. P., Devadasan, D., Aravind, U. K., & Aravindakumar, C. T.
Affiliations
Mahatma Gandhi University (IN)
Corresponding author
  • Aravind, Usha K.
  • Aravindakumar, Charuvila T.
Venue
Journal of Hazardous Materials
Publisher
Elsevier BV
Published
2015-12
Volume
300
Pages
202-209
ISSN
0304-3894 (ISSN-L)
OpenAlex
W839441178
Cited by
72
References
56
Citations by year
2025: 2 · 2024: 4 · 2023: 6 · 2022: 8 · 2021: 11 · 2020: 6 · 2019: 10 · 2018: 13 · 2017: 6 · 2016: 5 · 2015: 1
FWCI
5.51
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Hazardous Materials (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • KSCSTE
  • DST
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Advanced oxidation water treatment
  • Physical Sciences › Materials Science › Materials Chemistry › Ultrasound and Cavitation Phenomena
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Advanced Photocatalysis Techniques
Keywords
methylparaben, sonolysis, hydroxyl radicals, emerging contaminants, inorganic anions, carbonate interference, mineralization, degradation intermediates, aromatic hydroxylation, hydrolysis, COD removal, cytotoxicity, parabens, wastewater treatment
MeSH terms
Ultrasonic Waves, Parabens, Phthalic Acids, Triclosan, Water Pollutants, Chemical, Hydroxyl Radical, Benzoic Acid

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