Oxidative Decomposition of 2, 4, 6-Trichlorophenol Catalyzed by Polymer Supported Metalloporphyins

고분자결합 금속포르피린을 촉매로 한 2, 4, 6-트리클로로페놀의 산화 분해반응

  • 박혜옥 (서울여자대학교 자연과학대학 화학과) ;
  • 이보영 (서울여자대학교 자연과학대학 화학과) ;
  • 이인숙 (서울여자대학교 자연과학대학 화학과)
  • Received : 2000.12.29
  • Published : 2001.02.25

Abstract

Oxidative decomposition of 2, 4, 6-trichlorophenol(TCP) was studied in aqueous solution. Iron and manganese protoporphyrin [or tetrakis(p-carboxyphenylporphyrin)] and their polymer supported derivatives were used as catalysts, and $KHSO_5$ and tert-butyldroperoxide(TBHP) as oxidants. Metalloporphyrin itself shows very poor catalytic activity in oxidative decomposition of TCP with oxidant. However, very high catalytic activity was observed when metalloporphyrin was chemically bound to newly synthesized polymers or XAD2 resin. Additionally, it revealed much higher catalytic activity in the presence of water-soluble polymers having a electron-donating axial ligand such as pyridine and immidazole. Maleic acid and chloromaleic acid were found in the resulting solution by ESI-MS. Especially, XAD2-supported metalloporphyrins can be reused as catalysts due to insolubility to solvent, and stability against oxidant.

Keywords

metalloporphyrin;trichlorophenol;oxidative decomposition;polymer-supported metalloporphyrin

Acknowledgement

Supported by : 서울여자대학교

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