articleEnvironmental Science & TechnologyMay 8, 2015Closed access

Heterogeneous Degradation of Organic Pollutants by Persulfate Activated by CuO-Fe 3 O 4 : Mechanism, Stability, and Effects of pH and Bicarbonate Ions

YLYang LeiCCChuh-Shun ChenYTYao-Jen TuYHYao-Hui HuangHZHui Zhang

Wuhan University · National Cheng Kung University · +1 more institution

PubMed
Indexed incrossrefpubmed

Abstract

Magnetic CuO-Fe3O4 composite was fabricated by a simple hydrothermal method and characterized as a heterogeneous catalyst for phenol degradation. The effects of pH and bicarbonate ions on catalytic activity were extensively evaluated in view of the practical applications. The results indicated that an increase of solution pH and the presence of bicarbonate ions were beneficial for the removal of phenol in the CuO-Fe3O4 coupled with persulfate (PS) process. Almost 100% mineralization of 0.1 mM phenol can be achieved in 120 min by using 0.3 g/L CuO-Fe3O4 and 5.0 mM PS at pH 11.0 or in the presence of 3.0 mM bicarbonate. The positive effect of bicarbonate ion is probably due to the suppression of copper leaching…

Citation impact

731
total citations
FWCI
46.41
Percentile
100%
References
38
Citations per year

Authors

5

Topics & keywords

Topics
Keywords
  • Persulfate
  • Bicarbonate
  • Catalysis
  • Chemistry
  • Phenol
  • Inorganic chemistry
  • Leaching (pedology)
  • Mineralization (soil science)
UN Sustainable Development Goals
  • Clean water and sanitation
No related works found for this paper.

Funding