Degradation of substituted phenols with different oxygen sources catalyzed by Co(II) and Cu(II) phthalocyanine complexes

SAKA E. T., DUGDU E., ÜNVER Y.

JOURNAL OF COORDINATION CHEMISTRY, vol.72, pp.1119-1130, 2019 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 72
  • Publication Date: 2019
  • Doi Number: 10.1080/00958972.2019.1589461
  • Journal Name: JOURNAL OF COORDINATION CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1119-1130
  • Keywords: Degradation, substituted phenols, catalyst, phthalocyanine, PHOTOCATALYTIC DEGRADATION, COBALT PHTHALOCYANINE, CYCLOHEXENE OXIDATION, ZINC PHTHALOCYANINE, METAL-FREE, M-CPBA, C-H, METALLOPHTHALOCYANINES, EFFICIENT, WATER
  • Karadeniz Technical University Affiliated: Yes

Abstract

Research on substituted phenol degradations has received substantial attention. In this work, effective Co(II) and Cu(II) phthalocyanine complexes as catalysts were studied to degrade toxic phenols to harmless products. The effect of various process parameters, such as initial concentration of phenol, catalyst, oxygen sources, and temperature on the degradation reaction was investigated to achieve maximum degradation efficiency. The catalytic activities of Co(II) and Cu(II) phthalocyanines were evaluated for oxidation of phenolic compounds such as p-nitrophenol, o-chlorophenol, 2,3-dichlorophenol, and m-methoxyphenol. Co(II) phthalocyanine displayed good catalytic performance in degradation of 2,3-dichlorophenol to 2,3-dichlorobenzaldehyde and 2,3-dichloro-1,4-benzoquinone with the highest TON and TOF values within 3h at 50 degrees C. The fate of catalyst during the degradation process was followed by UV-Vis spectroscopy.