Enhanced $ CH_{4} $ selectivity in $ CO_{2} $ photocatalytic reduction over carbon quantum dots decorated and oxygen doping g-$ C_{3} %$ N_{4} $
Abstract Graphitic carbon nitride (g-$ C_{3} %$ N_{4} $, CN) exhibits inefficient charge separation, deficient $ CO_{2} $ adsorption and activation sites, and sluggish surface reaction kinetics, which have been recognized as the main barriers to its application in $ CO_{2} $ photocatalytic reduction...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Li, Qian [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2019 |
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| Anmerkung: |
© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019 |
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| Übergeordnetes Werk: |
Enthalten in: Nano research - [S.l.] : Tsinghua Press, 2008, 12(2019), 11 vom: 23. Sept., Seite 2749-2759 |
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| Übergeordnetes Werk: |
volume:12 ; year:2019 ; number:11 ; day:23 ; month:09 ; pages:2749-2759 |
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| DOI / URN: |
10.1007/s12274-019-2509-2 |
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SPR024731064 |
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| 520 | |a Abstract Graphitic carbon nitride (g-$ C_{3} %$ N_{4} $, CN) exhibits inefficient charge separation, deficient $ CO_{2} $ adsorption and activation sites, and sluggish surface reaction kinetics, which have been recognized as the main barriers to its application in $ CO_{2} $ photocatalytic reduction. In this work, carbon quantum dot (CQD) decoration and oxygen atom doping were applied to CN by a facile one-step hydrothermal method. The incorporated CQDs not only facilitate charge transfer and separation, but also provide alternative $ CO_{2} $ adsorption and activation sites. Further, the oxygen-atom-doped CN (OCN), in which oxygen doping is accompanied by the formation of nitrogen defects, proves to be a sustainable $ H^{+} $ provider by facilitating the water dissociation and oxidation half-reactions. Because of the synergistic effect of the hybridized binary CQDs/OCN addressing the three challenging issues of the CN based materials, the performance of $ CO_{2} $ photocatalytic conversion to $ CH_{4} $ over CQDs/OCN-x (x represents the volume ratio of laboratory-used $ H_{2} %$ O_{2} $ (30 wt.%) in the mixed solution) is dramatically improved by 11 times at least. The hybrid photocatalyst design and mechanism proposed in this work could inspire more rational design and fabrication of effective photocatalysts for $ CO_{2} $ photocatalytic conversion with a high $ CH_{4} $ selectivity. | ||
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10.1007/s12274-019-2509-2 doi (DE-627)SPR024731064 (SPR)s12274-019-2509-2-e DE-627 ger DE-627 rakwb eng Li, Qian verfasserin aut Enhanced $ CH_{4} $ selectivity in $ CO_{2} $ photocatalytic reduction over carbon quantum dots decorated and oxygen doping g-$ C_{3} %$ N_{4} $ 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract Graphitic carbon nitride (g-$ C_{3} %$ N_{4} $, CN) exhibits inefficient charge separation, deficient $ CO_{2} $ adsorption and activation sites, and sluggish surface reaction kinetics, which have been recognized as the main barriers to its application in $ CO_{2} $ photocatalytic reduction. In this work, carbon quantum dot (CQD) decoration and oxygen atom doping were applied to CN by a facile one-step hydrothermal method. The incorporated CQDs not only facilitate charge transfer and separation, but also provide alternative $ CO_{2} $ adsorption and activation sites. Further, the oxygen-atom-doped CN (OCN), in which oxygen doping is accompanied by the formation of nitrogen defects, proves to be a sustainable $ H^{+} $ provider by facilitating the water dissociation and oxidation half-reactions. Because of the synergistic effect of the hybridized binary CQDs/OCN addressing the three challenging issues of the CN based materials, the performance of $ CO_{2} $ photocatalytic conversion to $ CH_{4} $ over CQDs/OCN-x (x represents the volume ratio of laboratory-used $ H_{2} %$ O_{2} $ (30 wt.%) in the mixed solution) is dramatically improved by 11 times at least. The hybrid photocatalyst design and mechanism proposed in this work could inspire more rational design and fabrication of effective photocatalysts for $ CO_{2} $ photocatalytic conversion with a high $ CH_{4} $ selectivity. photocatalytic (dpeaa)DE-He213 CO (dpeaa)DE-He213 reduction (dpeaa)DE-He213 graphitic carbon nitride (g-C (dpeaa)DE-He213 N (dpeaa)DE-He213 ) (dpeaa)DE-He213 carbon quantum dot (dpeaa)DE-He213 oxygen doping (dpeaa)DE-He213 Wang, Songcan aut Sun, Zhuxing aut Tang, Qijun aut Liu, Yiqiu aut Wang, Lianzhou aut Wang, Haiqiang aut Wu, Zhongbiao aut Enthalten in Nano research [S.l.] : Tsinghua Press, 2008 12(2019), 11 vom: 23. Sept., Seite 2749-2759 (DE-627)57375361X (DE-600)2442216-2 1998-0000 nnns volume:12 year:2019 number:11 day:23 month:09 pages:2749-2759 https://dx.doi.org/10.1007/s12274-019-2509-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 12 2019 11 23 09 2749-2759 |
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10.1007/s12274-019-2509-2 doi (DE-627)SPR024731064 (SPR)s12274-019-2509-2-e DE-627 ger DE-627 rakwb eng Li, Qian verfasserin aut Enhanced $ CH_{4} $ selectivity in $ CO_{2} $ photocatalytic reduction over carbon quantum dots decorated and oxygen doping g-$ C_{3} %$ N_{4} $ 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract Graphitic carbon nitride (g-$ C_{3} %$ N_{4} $, CN) exhibits inefficient charge separation, deficient $ CO_{2} $ adsorption and activation sites, and sluggish surface reaction kinetics, which have been recognized as the main barriers to its application in $ CO_{2} $ photocatalytic reduction. In this work, carbon quantum dot (CQD) decoration and oxygen atom doping were applied to CN by a facile one-step hydrothermal method. The incorporated CQDs not only facilitate charge transfer and separation, but also provide alternative $ CO_{2} $ adsorption and activation sites. Further, the oxygen-atom-doped CN (OCN), in which oxygen doping is accompanied by the formation of nitrogen defects, proves to be a sustainable $ H^{+} $ provider by facilitating the water dissociation and oxidation half-reactions. Because of the synergistic effect of the hybridized binary CQDs/OCN addressing the three challenging issues of the CN based materials, the performance of $ CO_{2} $ photocatalytic conversion to $ CH_{4} $ over CQDs/OCN-x (x represents the volume ratio of laboratory-used $ H_{2} %$ O_{2} $ (30 wt.%) in the mixed solution) is dramatically improved by 11 times at least. The hybrid photocatalyst design and mechanism proposed in this work could inspire more rational design and fabrication of effective photocatalysts for $ CO_{2} $ photocatalytic conversion with a high $ CH_{4} $ selectivity. photocatalytic (dpeaa)DE-He213 CO (dpeaa)DE-He213 reduction (dpeaa)DE-He213 graphitic carbon nitride (g-C (dpeaa)DE-He213 N (dpeaa)DE-He213 ) (dpeaa)DE-He213 carbon quantum dot (dpeaa)DE-He213 oxygen doping (dpeaa)DE-He213 Wang, Songcan aut Sun, Zhuxing aut Tang, Qijun aut Liu, Yiqiu aut Wang, Lianzhou aut Wang, Haiqiang aut Wu, Zhongbiao aut Enthalten in Nano research [S.l.] : Tsinghua Press, 2008 12(2019), 11 vom: 23. Sept., Seite 2749-2759 (DE-627)57375361X (DE-600)2442216-2 1998-0000 nnns volume:12 year:2019 number:11 day:23 month:09 pages:2749-2759 https://dx.doi.org/10.1007/s12274-019-2509-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 12 2019 11 23 09 2749-2759 |
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10.1007/s12274-019-2509-2 doi (DE-627)SPR024731064 (SPR)s12274-019-2509-2-e DE-627 ger DE-627 rakwb eng Li, Qian verfasserin aut Enhanced $ CH_{4} $ selectivity in $ CO_{2} $ photocatalytic reduction over carbon quantum dots decorated and oxygen doping g-$ C_{3} %$ N_{4} $ 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract Graphitic carbon nitride (g-$ C_{3} %$ N_{4} $, CN) exhibits inefficient charge separation, deficient $ CO_{2} $ adsorption and activation sites, and sluggish surface reaction kinetics, which have been recognized as the main barriers to its application in $ CO_{2} $ photocatalytic reduction. In this work, carbon quantum dot (CQD) decoration and oxygen atom doping were applied to CN by a facile one-step hydrothermal method. The incorporated CQDs not only facilitate charge transfer and separation, but also provide alternative $ CO_{2} $ adsorption and activation sites. Further, the oxygen-atom-doped CN (OCN), in which oxygen doping is accompanied by the formation of nitrogen defects, proves to be a sustainable $ H^{+} $ provider by facilitating the water dissociation and oxidation half-reactions. Because of the synergistic effect of the hybridized binary CQDs/OCN addressing the three challenging issues of the CN based materials, the performance of $ CO_{2} $ photocatalytic conversion to $ CH_{4} $ over CQDs/OCN-x (x represents the volume ratio of laboratory-used $ H_{2} %$ O_{2} $ (30 wt.%) in the mixed solution) is dramatically improved by 11 times at least. The hybrid photocatalyst design and mechanism proposed in this work could inspire more rational design and fabrication of effective photocatalysts for $ CO_{2} $ photocatalytic conversion with a high $ CH_{4} $ selectivity. photocatalytic (dpeaa)DE-He213 CO (dpeaa)DE-He213 reduction (dpeaa)DE-He213 graphitic carbon nitride (g-C (dpeaa)DE-He213 N (dpeaa)DE-He213 ) (dpeaa)DE-He213 carbon quantum dot (dpeaa)DE-He213 oxygen doping (dpeaa)DE-He213 Wang, Songcan aut Sun, Zhuxing aut Tang, Qijun aut Liu, Yiqiu aut Wang, Lianzhou aut Wang, Haiqiang aut Wu, Zhongbiao aut Enthalten in Nano research [S.l.] : Tsinghua Press, 2008 12(2019), 11 vom: 23. Sept., Seite 2749-2759 (DE-627)57375361X (DE-600)2442216-2 1998-0000 nnns volume:12 year:2019 number:11 day:23 month:09 pages:2749-2759 https://dx.doi.org/10.1007/s12274-019-2509-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 12 2019 11 23 09 2749-2759 |
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10.1007/s12274-019-2509-2 doi (DE-627)SPR024731064 (SPR)s12274-019-2509-2-e DE-627 ger DE-627 rakwb eng Li, Qian verfasserin aut Enhanced $ CH_{4} $ selectivity in $ CO_{2} $ photocatalytic reduction over carbon quantum dots decorated and oxygen doping g-$ C_{3} %$ N_{4} $ 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract Graphitic carbon nitride (g-$ C_{3} %$ N_{4} $, CN) exhibits inefficient charge separation, deficient $ CO_{2} $ adsorption and activation sites, and sluggish surface reaction kinetics, which have been recognized as the main barriers to its application in $ CO_{2} $ photocatalytic reduction. In this work, carbon quantum dot (CQD) decoration and oxygen atom doping were applied to CN by a facile one-step hydrothermal method. The incorporated CQDs not only facilitate charge transfer and separation, but also provide alternative $ CO_{2} $ adsorption and activation sites. Further, the oxygen-atom-doped CN (OCN), in which oxygen doping is accompanied by the formation of nitrogen defects, proves to be a sustainable $ H^{+} $ provider by facilitating the water dissociation and oxidation half-reactions. Because of the synergistic effect of the hybridized binary CQDs/OCN addressing the three challenging issues of the CN based materials, the performance of $ CO_{2} $ photocatalytic conversion to $ CH_{4} $ over CQDs/OCN-x (x represents the volume ratio of laboratory-used $ H_{2} %$ O_{2} $ (30 wt.%) in the mixed solution) is dramatically improved by 11 times at least. The hybrid photocatalyst design and mechanism proposed in this work could inspire more rational design and fabrication of effective photocatalysts for $ CO_{2} $ photocatalytic conversion with a high $ CH_{4} $ selectivity. photocatalytic (dpeaa)DE-He213 CO (dpeaa)DE-He213 reduction (dpeaa)DE-He213 graphitic carbon nitride (g-C (dpeaa)DE-He213 N (dpeaa)DE-He213 ) (dpeaa)DE-He213 carbon quantum dot (dpeaa)DE-He213 oxygen doping (dpeaa)DE-He213 Wang, Songcan aut Sun, Zhuxing aut Tang, Qijun aut Liu, Yiqiu aut Wang, Lianzhou aut Wang, Haiqiang aut Wu, Zhongbiao aut Enthalten in Nano research [S.l.] : Tsinghua Press, 2008 12(2019), 11 vom: 23. Sept., Seite 2749-2759 (DE-627)57375361X (DE-600)2442216-2 1998-0000 nnns volume:12 year:2019 number:11 day:23 month:09 pages:2749-2759 https://dx.doi.org/10.1007/s12274-019-2509-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 12 2019 11 23 09 2749-2759 |
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10.1007/s12274-019-2509-2 doi (DE-627)SPR024731064 (SPR)s12274-019-2509-2-e DE-627 ger DE-627 rakwb eng Li, Qian verfasserin aut Enhanced $ CH_{4} $ selectivity in $ CO_{2} $ photocatalytic reduction over carbon quantum dots decorated and oxygen doping g-$ C_{3} %$ N_{4} $ 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract Graphitic carbon nitride (g-$ C_{3} %$ N_{4} $, CN) exhibits inefficient charge separation, deficient $ CO_{2} $ adsorption and activation sites, and sluggish surface reaction kinetics, which have been recognized as the main barriers to its application in $ CO_{2} $ photocatalytic reduction. In this work, carbon quantum dot (CQD) decoration and oxygen atom doping were applied to CN by a facile one-step hydrothermal method. The incorporated CQDs not only facilitate charge transfer and separation, but also provide alternative $ CO_{2} $ adsorption and activation sites. Further, the oxygen-atom-doped CN (OCN), in which oxygen doping is accompanied by the formation of nitrogen defects, proves to be a sustainable $ H^{+} $ provider by facilitating the water dissociation and oxidation half-reactions. Because of the synergistic effect of the hybridized binary CQDs/OCN addressing the three challenging issues of the CN based materials, the performance of $ CO_{2} $ photocatalytic conversion to $ CH_{4} $ over CQDs/OCN-x (x represents the volume ratio of laboratory-used $ H_{2} %$ O_{2} $ (30 wt.%) in the mixed solution) is dramatically improved by 11 times at least. The hybrid photocatalyst design and mechanism proposed in this work could inspire more rational design and fabrication of effective photocatalysts for $ CO_{2} $ photocatalytic conversion with a high $ CH_{4} $ selectivity. photocatalytic (dpeaa)DE-He213 CO (dpeaa)DE-He213 reduction (dpeaa)DE-He213 graphitic carbon nitride (g-C (dpeaa)DE-He213 N (dpeaa)DE-He213 ) (dpeaa)DE-He213 carbon quantum dot (dpeaa)DE-He213 oxygen doping (dpeaa)DE-He213 Wang, Songcan aut Sun, Zhuxing aut Tang, Qijun aut Liu, Yiqiu aut Wang, Lianzhou aut Wang, Haiqiang aut Wu, Zhongbiao aut Enthalten in Nano research [S.l.] : Tsinghua Press, 2008 12(2019), 11 vom: 23. Sept., Seite 2749-2759 (DE-627)57375361X (DE-600)2442216-2 1998-0000 nnns volume:12 year:2019 number:11 day:23 month:09 pages:2749-2759 https://dx.doi.org/10.1007/s12274-019-2509-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 12 2019 11 23 09 2749-2759 |
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Enthalten in Nano research 12(2019), 11 vom: 23. Sept., Seite 2749-2759 volume:12 year:2019 number:11 day:23 month:09 pages:2749-2759 |
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Enthalten in Nano research 12(2019), 11 vom: 23. Sept., Seite 2749-2759 volume:12 year:2019 number:11 day:23 month:09 pages:2749-2759 |
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photocatalytic CO reduction graphitic carbon nitride (g-C N ) carbon quantum dot oxygen doping |
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Li, Qian @@aut@@ Wang, Songcan @@aut@@ Sun, Zhuxing @@aut@@ Tang, Qijun @@aut@@ Liu, Yiqiu @@aut@@ Wang, Lianzhou @@aut@@ Wang, Haiqiang @@aut@@ Wu, Zhongbiao @@aut@@ |
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2019-09-23T00:00:00Z |
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In this work, carbon quantum dot (CQD) decoration and oxygen atom doping were applied to CN by a facile one-step hydrothermal method. The incorporated CQDs not only facilitate charge transfer and separation, but also provide alternative $ CO_{2} $ adsorption and activation sites. Further, the oxygen-atom-doped CN (OCN), in which oxygen doping is accompanied by the formation of nitrogen defects, proves to be a sustainable $ H^{+} $ provider by facilitating the water dissociation and oxidation half-reactions. Because of the synergistic effect of the hybridized binary CQDs/OCN addressing the three challenging issues of the CN based materials, the performance of $ CO_{2} $ photocatalytic conversion to $ CH_{4} $ over CQDs/OCN-x (x represents the volume ratio of laboratory-used $ H_{2} %$ O_{2} $ (30 wt.%) in the mixed solution) is dramatically improved by 11 times at least. 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Li, Qian |
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Li, Qian misc photocatalytic misc CO misc reduction misc graphitic carbon nitride (g-C misc N misc ) misc carbon quantum dot misc oxygen doping Enhanced $ CH_{4} $ selectivity in $ CO_{2} $ photocatalytic reduction over carbon quantum dots decorated and oxygen doping g-$ C_{3} %$ N_{4} $ |
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Enhanced $ CH_{4} $ selectivity in $ CO_{2} $ photocatalytic reduction over carbon quantum dots decorated and oxygen doping g-$ C_{3} %$ N_{4} $ photocatalytic (dpeaa)DE-He213 CO (dpeaa)DE-He213 reduction (dpeaa)DE-He213 graphitic carbon nitride (g-C (dpeaa)DE-He213 N (dpeaa)DE-He213 ) (dpeaa)DE-He213 carbon quantum dot (dpeaa)DE-He213 oxygen doping (dpeaa)DE-He213 |
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misc photocatalytic misc CO misc reduction misc graphitic carbon nitride (g-C misc N misc ) misc carbon quantum dot misc oxygen doping |
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Enhanced $ CH_{4} $ selectivity in $ CO_{2} $ photocatalytic reduction over carbon quantum dots decorated and oxygen doping g-$ C_{3} %$ N_{4} $ |
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Li, Qian Wang, Songcan Sun, Zhuxing Tang, Qijun Liu, Yiqiu Wang, Lianzhou Wang, Haiqiang Wu, Zhongbiao |
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Li, Qian |
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10.1007/s12274-019-2509-2 |
| title_sort |
enhanced $ ch_{4} $ selectivity in $ co_{2} $ photocatalytic reduction over carbon quantum dots decorated and oxygen doping g-$ c_{3} %$ n_{4} $ |
| title_auth |
Enhanced $ CH_{4} $ selectivity in $ CO_{2} $ photocatalytic reduction over carbon quantum dots decorated and oxygen doping g-$ C_{3} %$ N_{4} $ |
| abstract |
Abstract Graphitic carbon nitride (g-$ C_{3} %$ N_{4} $, CN) exhibits inefficient charge separation, deficient $ CO_{2} $ adsorption and activation sites, and sluggish surface reaction kinetics, which have been recognized as the main barriers to its application in $ CO_{2} $ photocatalytic reduction. In this work, carbon quantum dot (CQD) decoration and oxygen atom doping were applied to CN by a facile one-step hydrothermal method. The incorporated CQDs not only facilitate charge transfer and separation, but also provide alternative $ CO_{2} $ adsorption and activation sites. Further, the oxygen-atom-doped CN (OCN), in which oxygen doping is accompanied by the formation of nitrogen defects, proves to be a sustainable $ H^{+} $ provider by facilitating the water dissociation and oxidation half-reactions. Because of the synergistic effect of the hybridized binary CQDs/OCN addressing the three challenging issues of the CN based materials, the performance of $ CO_{2} $ photocatalytic conversion to $ CH_{4} $ over CQDs/OCN-x (x represents the volume ratio of laboratory-used $ H_{2} %$ O_{2} $ (30 wt.%) in the mixed solution) is dramatically improved by 11 times at least. The hybrid photocatalyst design and mechanism proposed in this work could inspire more rational design and fabrication of effective photocatalysts for $ CO_{2} $ photocatalytic conversion with a high $ CH_{4} $ selectivity. © Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019 |
| abstractGer |
Abstract Graphitic carbon nitride (g-$ C_{3} %$ N_{4} $, CN) exhibits inefficient charge separation, deficient $ CO_{2} $ adsorption and activation sites, and sluggish surface reaction kinetics, which have been recognized as the main barriers to its application in $ CO_{2} $ photocatalytic reduction. In this work, carbon quantum dot (CQD) decoration and oxygen atom doping were applied to CN by a facile one-step hydrothermal method. The incorporated CQDs not only facilitate charge transfer and separation, but also provide alternative $ CO_{2} $ adsorption and activation sites. Further, the oxygen-atom-doped CN (OCN), in which oxygen doping is accompanied by the formation of nitrogen defects, proves to be a sustainable $ H^{+} $ provider by facilitating the water dissociation and oxidation half-reactions. Because of the synergistic effect of the hybridized binary CQDs/OCN addressing the three challenging issues of the CN based materials, the performance of $ CO_{2} $ photocatalytic conversion to $ CH_{4} $ over CQDs/OCN-x (x represents the volume ratio of laboratory-used $ H_{2} %$ O_{2} $ (30 wt.%) in the mixed solution) is dramatically improved by 11 times at least. The hybrid photocatalyst design and mechanism proposed in this work could inspire more rational design and fabrication of effective photocatalysts for $ CO_{2} $ photocatalytic conversion with a high $ CH_{4} $ selectivity. © Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019 |
| abstract_unstemmed |
Abstract Graphitic carbon nitride (g-$ C_{3} %$ N_{4} $, CN) exhibits inefficient charge separation, deficient $ CO_{2} $ adsorption and activation sites, and sluggish surface reaction kinetics, which have been recognized as the main barriers to its application in $ CO_{2} $ photocatalytic reduction. In this work, carbon quantum dot (CQD) decoration and oxygen atom doping were applied to CN by a facile one-step hydrothermal method. The incorporated CQDs not only facilitate charge transfer and separation, but also provide alternative $ CO_{2} $ adsorption and activation sites. Further, the oxygen-atom-doped CN (OCN), in which oxygen doping is accompanied by the formation of nitrogen defects, proves to be a sustainable $ H^{+} $ provider by facilitating the water dissociation and oxidation half-reactions. Because of the synergistic effect of the hybridized binary CQDs/OCN addressing the three challenging issues of the CN based materials, the performance of $ CO_{2} $ photocatalytic conversion to $ CH_{4} $ over CQDs/OCN-x (x represents the volume ratio of laboratory-used $ H_{2} %$ O_{2} $ (30 wt.%) in the mixed solution) is dramatically improved by 11 times at least. The hybrid photocatalyst design and mechanism proposed in this work could inspire more rational design and fabrication of effective photocatalysts for $ CO_{2} $ photocatalytic conversion with a high $ CH_{4} $ selectivity. © Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019 |
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11 |
| title_short |
Enhanced $ CH_{4} $ selectivity in $ CO_{2} $ photocatalytic reduction over carbon quantum dots decorated and oxygen doping g-$ C_{3} %$ N_{4} $ |
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https://dx.doi.org/10.1007/s12274-019-2509-2 |
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Wang, Songcan Sun, Zhuxing Tang, Qijun Liu, Yiqiu Wang, Lianzhou Wang, Haiqiang Wu, Zhongbiao |
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Wang, Songcan Sun, Zhuxing Tang, Qijun Liu, Yiqiu Wang, Lianzhou Wang, Haiqiang Wu, Zhongbiao |
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| score |
7.401202 |