Effect of heating on speciation of copper in Si/Al/Ca-based environmental matrices

Yu Ling Wei; Hsi Chih Wang; H. Paul Wang

doi:10.1016/j.radphyschem.2005.10.035

Effect of heating on speciation of copper in Si/Al/Ca-based environmental matrices

Yu Ling Wei, Hsi Chih Wang, H. Paul Wang

Department of Environmental Engineering

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

X-ray absorption spectroscopy is used to investigate the speciation of sorbed copper in heated fly ash. CuO and Cu(OH)₂ are determined to be the principal copper species in the Cu-sorbing fly ash heated at 500 °C for 2 h. Heating the Cu-sorbing fly ash to 900 °C or 1100 °C can result in the formation of CuSO₄, representing 41% and 32% of the total copper, respectively. Ash sintering and/or co-melting at 900 and 1100 °C occur, thereby triggering chemical reaction between CuO/Cu(OH)₂ and sulfur compounds.

Original language	English
Pages (from-to)	1916-1920
Number of pages	5
Journal	Radiation Physics and Chemistry
Volume	75
Issue number	11 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.radphyschem.2005.10.035
Publication status	Published - 2006 Nov

All Science Journal Classification (ASJC) codes

Radiation

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10.1016/j.radphyschem.2005.10.035

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title = "Effect of heating on speciation of copper in Si/Al/Ca-based environmental matrices",

abstract = "X-ray absorption spectroscopy is used to investigate the speciation of sorbed copper in heated fly ash. CuO and Cu(OH)2 are determined to be the principal copper species in the Cu-sorbing fly ash heated at 500 °C for 2 h. Heating the Cu-sorbing fly ash to 900 °C or 1100 °C can result in the formation of CuSO4, representing 41% and 32% of the total copper, respectively. Ash sintering and/or co-melting at 900 and 1100 °C occur, thereby triggering chemical reaction between CuO/Cu(OH)2 and sulfur compounds.",

author = "Wei, {Yu Ling} and Wang, {Hsi Chih} and {Paul Wang}, H.",

note = "Funding Information: We thank Professor Jyh-Fu Lee and the staff of NSRRC of Taiwan for their assistance during the XAS experimentation. This project was sponsored by the National Science Council of Taiwan, ROC (NSC 91-2211-E-029-007).",

year = "2006",

month = nov,

doi = "10.1016/j.radphyschem.2005.10.035",

language = "English",

volume = "75",

pages = "1916--1920",

journal = "Radiation Physics and Chemistry",

issn = "0969-806X",

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number = "11 SPEC. ISS.",

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T1 - Effect of heating on speciation of copper in Si/Al/Ca-based environmental matrices

AU - Wei, Yu Ling

AU - Wang, Hsi Chih

AU - Paul Wang, H.

N1 - Funding Information: We thank Professor Jyh-Fu Lee and the staff of NSRRC of Taiwan for their assistance during the XAS experimentation. This project was sponsored by the National Science Council of Taiwan, ROC (NSC 91-2211-E-029-007).

PY - 2006/11

Y1 - 2006/11

N2 - X-ray absorption spectroscopy is used to investigate the speciation of sorbed copper in heated fly ash. CuO and Cu(OH)2 are determined to be the principal copper species in the Cu-sorbing fly ash heated at 500 °C for 2 h. Heating the Cu-sorbing fly ash to 900 °C or 1100 °C can result in the formation of CuSO4, representing 41% and 32% of the total copper, respectively. Ash sintering and/or co-melting at 900 and 1100 °C occur, thereby triggering chemical reaction between CuO/Cu(OH)2 and sulfur compounds.

AB - X-ray absorption spectroscopy is used to investigate the speciation of sorbed copper in heated fly ash. CuO and Cu(OH)2 are determined to be the principal copper species in the Cu-sorbing fly ash heated at 500 °C for 2 h. Heating the Cu-sorbing fly ash to 900 °C or 1100 °C can result in the formation of CuSO4, representing 41% and 32% of the total copper, respectively. Ash sintering and/or co-melting at 900 and 1100 °C occur, thereby triggering chemical reaction between CuO/Cu(OH)2 and sulfur compounds.

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DO - 10.1016/j.radphyschem.2005.10.035

M3 - Article

AN - SCOPUS:33750195831

SN - 0969-806X

VL - 75

SP - 1916

EP - 1920

JO - Radiation Physics and Chemistry

JF - Radiation Physics and Chemistry

IS - 11 SPEC. ISS.

ER -

Effect of heating on speciation of copper in Si/Al/Ca-based environmental matrices

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