Photocatalytic degradation of tetracycline in aqueous solution using copper sulfide nanoparticles

Murendeni P. Ravele, Opeyemi A. Oyewo, Sam Ramaila, Lydia Mavuru, Damian C. Onwudiwe

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

In this paper, spherical-shaped pure phase djurleite (Cu31 S16 ) and roxbyite (Cu7 S4 ) nanopar-ticles were prepared by a solvothermal decomposition of copper(II) dithiocarbamate complex in dodecanthiol (DDT). The reaction temperature was used to control the phases of the samples, which were represented as Cu31 S16 (120 C), Cu31 S16 (150 C), Cu7 S4 (220 C), and Cu7 S4 (250 C) and were characterized by using X-ray diffraction (XRD), scanning and transmission electron microscopy (SEM and TEM), and absorption spectroscopy. The samples were used as photocatalysts for the degradation of tetracycline (TC) under visible light irradiation. The results of the study showed that Cu7 S4 (250 C) exhibited the best activity in the reaction system with the TC degradation rate of up to 99% within 120 min of light exposure, while the Cu31 S16 (120 C) system was only 46.5% at the same reaction condition. In general, roxbyite Cu7 S4 (250 C) could be considered as a potential catalyst for the degradation of TC in solution.

Original languageEnglish
Article number1238
JournalCatalysts
Volume11
Issue number10
DOIs
Publication statusPublished - Oct 2021

Keywords

  • Copper sulfide
  • Djurleite
  • Photodegradation
  • Roxbyite
  • Tetracycline

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

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