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The special route toward conversion of methane to methanol on a fluffy metal-free carbon nitride photocatalyst in the presence of H2O2.

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Title: The special route toward conversion of methane to methanol on a fluffy metal-free carbon nitride photocatalyst in the presence of H2O2.
Authors: Shi, Shangli1 (AUTHOR), Sun, Zhuxing1 (AUTHOR), Bao, Chenyu1 (AUTHOR), Gao, Tianshu1 (AUTHOR), Hu, Yun Hang1,2 (AUTHOR) yunhangh@mtu.edu
Source: International Journal of Energy Research. Mar2020, Vol. 44 Issue 4, p2740-2753. 14p. 9 Graphs.
Abstract: A fluffy mesoporous graphitic carbon nitride (g-CN) was synthesized and investigated, as the first metal-free polymeric semiconductor photocatalyst, for partial oxidation of methane to methanol at a mild condition (35°C) in the presence of hydrogen peroxide (H2O2). The addition of g-CN photocatalyst enhanced the methanol production with H2O2 by 10 times under visible light and this production was 3-folds that when WO3 was used. Besides, while attaining a comparable saturated production of CH3OH, the visible-light-driven reactions allowed a higher utilization ratio of H2O2 compared with those under the irradiation of simulated AM1.5G sunlight. More importantly, via electron spin resonance technique, scavenger experiments and isotope tracer investigations, as well as studies on the effects of reaction condition variations, the specific reaction mechanisms were revealed under both visible light and simulated full sunlight, respectively, which should shed some new insights on photocatalytic oxidation of CH4 to value-added chemicals. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Energy Research is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: <searchLink fieldCode="AR" term="%22Shi%2C+Shangli%22">Shi, Shangli</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sun%2C+Zhuxing%22">Sun, Zhuxing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bao%2C+Chenyu%22">Bao, Chenyu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gao%2C+Tianshu%22">Gao, Tianshu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hu%2C+Yun+Hang%22">Hu, Yun Hang</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> yunhangh@mtu.edu</i>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Energy+Research%22">International Journal of Energy Research</searchLink>. Mar2020, Vol. 44 Issue 4, p2740-2753. 14p. 9 Graphs.
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: A fluffy mesoporous graphitic carbon nitride (g-CN) was synthesized and investigated, as the first metal-free polymeric semiconductor photocatalyst, for partial oxidation of methane to methanol at a mild condition (35°C) in the presence of hydrogen peroxide (H2O2). The addition of g-CN photocatalyst enhanced the methanol production with H2O2 by 10 times under visible light and this production was 3-folds that when WO3 was used. Besides, while attaining a comparable saturated production of CH3OH, the visible-light-driven reactions allowed a higher utilization ratio of H2O2 compared with those under the irradiation of simulated AM1.5G sunlight. More importantly, via electron spin resonance technique, scavenger experiments and isotope tracer investigations, as well as studies on the effects of reaction condition variations, the specific reaction mechanisms were revealed under both visible light and simulated full sunlight, respectively, which should shed some new insights on photocatalytic oxidation of CH4 to value-added chemicals. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Energy Research is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1002/er.5088
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        Text: English
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              Text: Mar2020
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