Photocatalytic degradation of acetaminophen in aqueous solution by Zn 0.2 Cd 0.8 S catalyst and visible radiation

Mohammed A. Meetani*, Anas Alaidaros, Soleiman Hisaindee, Ahmed Alhamadat, Rengaraj Selvaraj, Faisal Al Marzouqi, Muhammad A. Rauf

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Photocatalytic degradation of acetaminophen in aqueous solution by Zn 0.2 Cd 0.8 S catalyst and visible light radiation was carried out under optimized conditions. The degradation was monitored spectrophotometrically. The degraded products were analyzed by gas chromatography–mass spectrometry and liquid chromatography–mass spectrometry (LC–MS) and their structures were proposed using tandem mass spectrometry data. Various mechanistic pathways were observed involving OH radicals. The parent compound was converted to lower molecular weight unsaturated carboxylic acids in addition to pyridine derivatives. Based on LC–MS and tandem mass spectrometry MS/MS results, a photocatalytic oxidative mechanism was suggested.

Original languageEnglish
Pages (from-to)270-279
Number of pages10
JournalDesalination and Water Treatment
Volume138
DOIs
Publication statusPublished - Jan 2019

Keywords

  • Acetaminophen
  • Degradation
  • LC-MS/MS
  • Photocatalyst
  • Visible radiation
  • Zn Cd S

ASJC Scopus subject areas

  • Water Science and Technology
  • Ocean Engineering
  • Pollution

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