Observation of nano copper in waste heat boiler fly ashes

C. Y. Chen, H. Paul Wang, Yu Ling Wei, C. J.G. Jou, Y. C. Huang

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Fly ashes collected from waste heat boilers in the incineration process may possess representative chemical structure of toxic metals during incineration and their changes in the quench process at 1125-553 K and 503-493 K, respectively. Note that copper may play an important role in catalytic formation of dioxins during incineration. Speciation of copper in the fly ashes has, therefore, been studied by X-ray absorption spectroscopy in the present work. About 24% of nano copper in the fly ash was observed by least-squares-fitted XANES (X-ray absorption near edge structural) spectroscopy. Sintering of the fly ash at 1423 K for 30 min led to a reduction of the nano CuO content to 8%.

Original languageEnglish
Pages (from-to)1913-1915
Number of pages3
JournalRadiation Physics and Chemistry
Volume75
Issue number11 SPEC. ISS.
DOIs
Publication statusPublished - 2006 Nov

All Science Journal Classification (ASJC) codes

  • Radiation

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