Reactions of SO2 and NH3 with epoxy groups on the surface of graphite oxide powder

Wenjing Xie; Lu Tao Weng; Chak Keung Chan; King Lun Yeung; Chi Ming Chan

doi:10.1039/c8cp00524a

Reactions of SO2 and NH3 with epoxy groups on the surface of graphite oxide powder

Wenjing Xie, Lu Tao Weng, Chak Keung Chan, King Lun Yeung, Chi Ming Chan

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

19 Scopus citations

Abstract

Graphite oxide powder was obtained using the modified Hummers' method and characterized using X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS). The XPS results indicated that the epoxy groups were the main functional groups on the graphite oxide powder surface. The graphite oxide powder was then reacted with SO2 and NH3 gases, respectively, at 25 °C. The XPS and ToF-SIMS analyses of the surface of the reacted graphite oxide powder showed that the reactions mainly occurred in the epoxy groups. Bisulfate and amine groups were formed on the surface of the graphite oxide powder after the reactions between the graphite oxide powder and SO2 and NH3 gases. This work demonstrates a new method of removing SO2 and NH3 gases using graphite oxide powder.

Original language	English (US)
Pages (from-to)	6431-6439
Number of pages	9
Journal	Physical Chemistry Chemical Physics
Volume	20
Issue number	9
DOIs	https://doi.org/10.1039/c8cp00524a
State	Published - Jan 1 2018
Externally published	Yes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2023-07-06

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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title = "Reactions of SO2 and NH3 with epoxy groups on the surface of graphite oxide powder",

abstract = "Graphite oxide powder was obtained using the modified Hummers' method and characterized using X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS). The XPS results indicated that the epoxy groups were the main functional groups on the graphite oxide powder surface. The graphite oxide powder was then reacted with SO2 and NH3 gases, respectively, at 25 °C. The XPS and ToF-SIMS analyses of the surface of the reacted graphite oxide powder showed that the reactions mainly occurred in the epoxy groups. Bisulfate and amine groups were formed on the surface of the graphite oxide powder after the reactions between the graphite oxide powder and SO2 and NH3 gases. This work demonstrates a new method of removing SO2 and NH3 gases using graphite oxide powder.",

author = "Wenjing Xie and Weng, {Lu Tao} and Chan, {Chak Keung} and Yeung, {King Lun} and Chan, {Chi Ming}",

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doi = "10.1039/c8cp00524a",

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T1 - Reactions of SO2 and NH3 with epoxy groups on the surface of graphite oxide powder

AU - Xie, Wenjing

AU - Weng, Lu Tao

AU - Chan, Chak Keung

AU - Yeung, King Lun

AU - Chan, Chi Ming

N1 - Generated from Scopus record by KAUST IRTS on 2023-07-06

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Graphite oxide powder was obtained using the modified Hummers' method and characterized using X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS). The XPS results indicated that the epoxy groups were the main functional groups on the graphite oxide powder surface. The graphite oxide powder was then reacted with SO2 and NH3 gases, respectively, at 25 °C. The XPS and ToF-SIMS analyses of the surface of the reacted graphite oxide powder showed that the reactions mainly occurred in the epoxy groups. Bisulfate and amine groups were formed on the surface of the graphite oxide powder after the reactions between the graphite oxide powder and SO2 and NH3 gases. This work demonstrates a new method of removing SO2 and NH3 gases using graphite oxide powder.

AB - Graphite oxide powder was obtained using the modified Hummers' method and characterized using X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS). The XPS results indicated that the epoxy groups were the main functional groups on the graphite oxide powder surface. The graphite oxide powder was then reacted with SO2 and NH3 gases, respectively, at 25 °C. The XPS and ToF-SIMS analyses of the surface of the reacted graphite oxide powder showed that the reactions mainly occurred in the epoxy groups. Bisulfate and amine groups were formed on the surface of the graphite oxide powder after the reactions between the graphite oxide powder and SO2 and NH3 gases. This work demonstrates a new method of removing SO2 and NH3 gases using graphite oxide powder.

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U2 - 10.1039/c8cp00524a

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JO - Physical Chemistry Chemical Physics

JF - Physical Chemistry Chemical Physics

IS - 9

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Reactions of SO2 and NH3 with epoxy groups on the surface of graphite oxide powder

Abstract

Bibliographical note

ASJC Scopus subject areas

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