Enhanced degradation of chlorobenzene in aqueous solution using microwave-induced zero-valent iron and copper particles

Chien Li Lee, Chih Ju G. Jou, Hong-Paul Wang

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Microwaves were applied to reduce the activation energy of chlorobenzene in aqueous solution and enhance its removal using nanoscale zero-valent iron (Fe 0 ) or zero-valent copper (Cu 0 ) particles as dielectric media. When Fe 0 and Cu 0 particles absorb microwave energy, the electrical potential difference causes the metal electrons to rotate faster, thus producing more heat. The microwave-irradiated metal particles reduced the chlorobenzene activation energy by 6.1 kJ/mol (13.3 kJ/mol versus 19.4 kJ/mol) for Fe 0 and 5.4 kJ/mol (15.8 kJ/mol versus 21.4 kJ/mol) for Cu 0 and enhanced the chlorobenzene removal 4.1 times (82.8% versus 20.4%) for Fe 0 and 3.7 times (72.1% versus 19.5%) for Cu 0 . The Fe 0 has a higher standard reduction potential than Cu 0 ; it is capable of removing more chlorobenzene than Cu 0 (82.8% versus 72.1%). Using the microwave-induced nano-scale iron or copper particle is effective in treating toxic organic substances, as demonstrated in this study.

Original languageEnglish
Pages (from-to)642-647
Number of pages6
JournalWater Environment Research
Volume82
Issue number7
DOIs
Publication statusPublished - 2010 Jan 1

Fingerprint

chlorobenzene
Copper
Iron
aqueous solution
Microwaves
copper
iron
Degradation
degradation
activation energy
Activation energy
Metals
Poisons
metal
electron
microwave
particle
Electrons
energy
removal

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Ecological Modelling
  • Water Science and Technology
  • Waste Management and Disposal
  • Pollution

Cite this

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abstract = "Microwaves were applied to reduce the activation energy of chlorobenzene in aqueous solution and enhance its removal using nanoscale zero-valent iron (Fe 0 ) or zero-valent copper (Cu 0 ) particles as dielectric media. When Fe 0 and Cu 0 particles absorb microwave energy, the electrical potential difference causes the metal electrons to rotate faster, thus producing more heat. The microwave-irradiated metal particles reduced the chlorobenzene activation energy by 6.1 kJ/mol (13.3 kJ/mol versus 19.4 kJ/mol) for Fe 0 and 5.4 kJ/mol (15.8 kJ/mol versus 21.4 kJ/mol) for Cu 0 and enhanced the chlorobenzene removal 4.1 times (82.8{\%} versus 20.4{\%}) for Fe 0 and 3.7 times (72.1{\%} versus 19.5{\%}) for Cu 0 . The Fe 0 has a higher standard reduction potential than Cu 0 ; it is capable of removing more chlorobenzene than Cu 0 (82.8{\%} versus 72.1{\%}). Using the microwave-induced nano-scale iron or copper particle is effective in treating toxic organic substances, as demonstrated in this study.",
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Enhanced degradation of chlorobenzene in aqueous solution using microwave-induced zero-valent iron and copper particles. / Lee, Chien Li; Jou, Chih Ju G.; Wang, Hong-Paul.

In: Water Environment Research, Vol. 82, No. 7, 01.01.2010, p. 642-647.

Research output: Contribution to journalArticle

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