Synthesis and characterization of γ-Fe2O3 encapsulated NaY zeolites as solid adsorbent for degradation of ceftriaxone through heterogeneous catalytic advanced oxidation processes

Afshin Takdastan, Hadi Sadeghi, Sina Dobaradaran, Lin Ma, Armin Sorooshian, Maryam Ravanbakhsh, Maryam Hazrati Niari

Research output: Contribution to journalArticle

Abstract

Abstract: The degradation of ceftriaxone (CTX) by heterogeneous catalytic advanced oxidation processes has been explored using γ-Fe2O3 NaY zeolites synthesized (γ-Fe2O3@NaY) in the laboratory through hydrothermal and chemical co-precipitation methods. γ-Fe2O3@NaY zeolite was characterized by scanning electron microscopy, energy-dispersive X-ray spectroscopy and X-ray diffractometer analyses. The effects of the initial concentration of CTX and catalyst, pH and hydrogen peroxide (H2O2) dose with the presence UV light on the degradation efficiency of CTX have been studied by conducting experiments in a batch reactor at room temperature. Experimental results reveal that CTX can be efficiently removed after 90 min at pH 4.0, CTX 20 mg/L, catalyst 1.17 g/L, H2O2 30 mM and presence of UV light. A kinetic and isotherm model was developed for investigation of the adsorption mechanism, and results show that model and data are in good agreement. The reusability of γ-Fe2O3@NaY was high as it degrades CTX in the presence of UV light and H2O2 even after five consecutive cycles. Also, due to having magnetic properties, this composite is easily separated from the solution by magnetism. This work indicates that bench synthesized γ-Fe2O3 NaY zeolite is a heterogeneous recoverable catalyst that can efficiently remove CTX from wastewater. Graphic abstract: [Figure not available: see fulltext.]

Original languageEnglish (US)
Pages (from-to)725-734
Number of pages10
JournalJournal of the Iranian Chemical Society
Volume17
Issue number3
DOIs
StatePublished - Mar 1 2020

Keywords

  • Advanced oxidation processes (AOPs)
  • Ceftriaxone removal
  • Heterogeneous catalysis
  • γ-Fe2O3 NaY zeolite

ASJC Scopus subject areas

  • Chemistry(all)

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