An insight into the trifunctional roles of Cu<ce:inf loc="post">2</ce:inf>(OH)<ce:inf loc="post">2</ce:inf>CO<ce:inf loc="post">3</ce:inf> cocatalyst in boosting the photocatalytic H<ce:inf loc="post">2</ce:inf> evolution activity over Zn<ce:inf loc="post">0.5</ce:inf>Cd<ce:inf loc="post">0.5</ce:inf>S nanoparticles
The construction of efficient semiconductor/cocatalyst heterojunction is a promising strategy to promote the photocatalytic H2-production efficiency from water reduction. Herein, a novel Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction composite with superior photocatalytic H2-generation activity and stabilit...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Liu, Yumin [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2019transfer abstract |
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| Umfang: |
9 |
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| Übergeordnetes Werk: |
Enthalten in: Characterising shape patterns using features derived from best-fitting ellipsoids - Gontar, Amelia ELSEVIER, 2018, a journal devoted to applied physics and chemistry of surfaces and interfaces, Amsterdam |
|---|---|
| Übergeordnetes Werk: |
volume:484 ; year:2019 ; day:1 ; month:08 ; pages:1061-1069 ; extent:9 |
| Links: |
|---|
| DOI / URN: |
10.1016/j.apsusc.2019.04.148 |
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| Katalog-ID: |
ELV047163208 |
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| 245 | 1 | 0 | |a An insight into the trifunctional roles of Cu<ce:inf loc="post">2</ce:inf>(OH)<ce:inf loc="post">2</ce:inf>CO<ce:inf loc="post">3</ce:inf> cocatalyst in boosting the photocatalytic H<ce:inf loc="post">2</ce:inf> evolution activity over Zn<ce:inf loc="post">0.5</ce:inf>Cd<ce:inf loc="post">0.5</ce:inf>S nanoparticles |
| 264 | 1 | |c 2019transfer abstract | |
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| 520 | |a The construction of efficient semiconductor/cocatalyst heterojunction is a promising strategy to promote the photocatalytic H2-production efficiency from water reduction. Herein, a novel Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction composite with superior photocatalytic H2-generation activity and stability was prepared via a facile in situ synthetic route, in which Cu2(OH)2CO3 served as cocatalyst stimulating the photocatalytic H2-evolution performance of Zn0.5Cd0.5S. The Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalyst containing 5 wt% of Cu2(OH)2CO3 exhibited a prominent H2-evolution efficiency of 275.7 μmol h−1, which is superior to the noble metal Pt-modified Zn0.5Cd0.5S photocatalyst (237.3 μmol h−1) and much higher than bare Zn0.5Cd0.5S (90.8 μmol h−1). The active Cu+/Cu0 species generated during the photoreaction process is responsible for the prominent H2-production activity of the heterojunction photocatalyst, which plays triple roles in enhancing the photoactivity of Zn0.5Cd0.5S via accelerating the charge separation, decreasing the overpotential of H2-generation and improving the reduction ability of photoinduced electrons. Moreover, the formed Cu+/Cu0 species during photoreaction can be readily oxidized back to Cu2(OH)2CO3 upon exposure to air, thus restores the photoactivity and therefore enables good reusability of the Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalysts. This work provides a new insight into the fabrication of Cu2(OH)2CO3-assisted heterojunction photocatalysts with the highly stable and efficient performances for solar-to-chemical energy conversion. | ||
| 520 | |a The construction of efficient semiconductor/cocatalyst heterojunction is a promising strategy to promote the photocatalytic H2-production efficiency from water reduction. Herein, a novel Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction composite with superior photocatalytic H2-generation activity and stability was prepared via a facile in situ synthetic route, in which Cu2(OH)2CO3 served as cocatalyst stimulating the photocatalytic H2-evolution performance of Zn0.5Cd0.5S. The Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalyst containing 5 wt% of Cu2(OH)2CO3 exhibited a prominent H2-evolution efficiency of 275.7 μmol h−1, which is superior to the noble metal Pt-modified Zn0.5Cd0.5S photocatalyst (237.3 μmol h−1) and much higher than bare Zn0.5Cd0.5S (90.8 μmol h−1). The active Cu+/Cu0 species generated during the photoreaction process is responsible for the prominent H2-production activity of the heterojunction photocatalyst, which plays triple roles in enhancing the photoactivity of Zn0.5Cd0.5S via accelerating the charge separation, decreasing the overpotential of H2-generation and improving the reduction ability of photoinduced electrons. Moreover, the formed Cu+/Cu0 species during photoreaction can be readily oxidized back to Cu2(OH)2CO3 upon exposure to air, thus restores the photoactivity and therefore enables good reusability of the Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalysts. This work provides a new insight into the fabrication of Cu2(OH)2CO3-assisted heterojunction photocatalysts with the highly stable and efficient performances for solar-to-chemical energy conversion. | ||
| 700 | 1 | |a Ren, Hao |4 oth | |
| 700 | 1 | |a Lv, Hua |4 oth | |
| 700 | 1 | |a Gong, Zhiyuan |4 oth | |
| 700 | 1 | |a Cao, Yafei |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier |a Gontar, Amelia ELSEVIER |t Characterising shape patterns using features derived from best-fitting ellipsoids |d 2018 |d a journal devoted to applied physics and chemistry of surfaces and interfaces |g Amsterdam |w (DE-627)ELV000097942 |
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10.1016/j.apsusc.2019.04.148 doi GBV00000000000660.pica (DE-627)ELV047163208 (ELSEVIER)S0169-4332(19)31141-9 DE-627 ger DE-627 rakwb eng 000 150 VZ 54.74 bkl Liu, Yumin verfasserin aut An insight into the trifunctional roles of Cu<ce:inf loc="post">2</ce:inf>(OH)<ce:inf loc="post">2</ce:inf>CO<ce:inf loc="post">3</ce:inf> cocatalyst in boosting the photocatalytic H<ce:inf loc="post">2</ce:inf> evolution activity over Zn<ce:inf loc="post">0.5</ce:inf>Cd<ce:inf loc="post">0.5</ce:inf>S nanoparticles 2019transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The construction of efficient semiconductor/cocatalyst heterojunction is a promising strategy to promote the photocatalytic H2-production efficiency from water reduction. Herein, a novel Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction composite with superior photocatalytic H2-generation activity and stability was prepared via a facile in situ synthetic route, in which Cu2(OH)2CO3 served as cocatalyst stimulating the photocatalytic H2-evolution performance of Zn0.5Cd0.5S. The Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalyst containing 5 wt% of Cu2(OH)2CO3 exhibited a prominent H2-evolution efficiency of 275.7 μmol h−1, which is superior to the noble metal Pt-modified Zn0.5Cd0.5S photocatalyst (237.3 μmol h−1) and much higher than bare Zn0.5Cd0.5S (90.8 μmol h−1). The active Cu+/Cu0 species generated during the photoreaction process is responsible for the prominent H2-production activity of the heterojunction photocatalyst, which plays triple roles in enhancing the photoactivity of Zn0.5Cd0.5S via accelerating the charge separation, decreasing the overpotential of H2-generation and improving the reduction ability of photoinduced electrons. Moreover, the formed Cu+/Cu0 species during photoreaction can be readily oxidized back to Cu2(OH)2CO3 upon exposure to air, thus restores the photoactivity and therefore enables good reusability of the Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalysts. This work provides a new insight into the fabrication of Cu2(OH)2CO3-assisted heterojunction photocatalysts with the highly stable and efficient performances for solar-to-chemical energy conversion. The construction of efficient semiconductor/cocatalyst heterojunction is a promising strategy to promote the photocatalytic H2-production efficiency from water reduction. Herein, a novel Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction composite with superior photocatalytic H2-generation activity and stability was prepared via a facile in situ synthetic route, in which Cu2(OH)2CO3 served as cocatalyst stimulating the photocatalytic H2-evolution performance of Zn0.5Cd0.5S. The Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalyst containing 5 wt% of Cu2(OH)2CO3 exhibited a prominent H2-evolution efficiency of 275.7 μmol h−1, which is superior to the noble metal Pt-modified Zn0.5Cd0.5S photocatalyst (237.3 μmol h−1) and much higher than bare Zn0.5Cd0.5S (90.8 μmol h−1). The active Cu+/Cu0 species generated during the photoreaction process is responsible for the prominent H2-production activity of the heterojunction photocatalyst, which plays triple roles in enhancing the photoactivity of Zn0.5Cd0.5S via accelerating the charge separation, decreasing the overpotential of H2-generation and improving the reduction ability of photoinduced electrons. Moreover, the formed Cu+/Cu0 species during photoreaction can be readily oxidized back to Cu2(OH)2CO3 upon exposure to air, thus restores the photoactivity and therefore enables good reusability of the Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalysts. This work provides a new insight into the fabrication of Cu2(OH)2CO3-assisted heterojunction photocatalysts with the highly stable and efficient performances for solar-to-chemical energy conversion. Ren, Hao oth Lv, Hua oth Gong, Zhiyuan oth Cao, Yafei oth Enthalten in Elsevier Gontar, Amelia ELSEVIER Characterising shape patterns using features derived from best-fitting ellipsoids 2018 a journal devoted to applied physics and chemistry of surfaces and interfaces Amsterdam (DE-627)ELV000097942 volume:484 year:2019 day:1 month:08 pages:1061-1069 extent:9 https://doi.org/10.1016/j.apsusc.2019.04.148 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 54.74 Maschinelles Sehen VZ AR 484 2019 1 0801 1061-1069 9 |
| spelling |
10.1016/j.apsusc.2019.04.148 doi GBV00000000000660.pica (DE-627)ELV047163208 (ELSEVIER)S0169-4332(19)31141-9 DE-627 ger DE-627 rakwb eng 000 150 VZ 54.74 bkl Liu, Yumin verfasserin aut An insight into the trifunctional roles of Cu<ce:inf loc="post">2</ce:inf>(OH)<ce:inf loc="post">2</ce:inf>CO<ce:inf loc="post">3</ce:inf> cocatalyst in boosting the photocatalytic H<ce:inf loc="post">2</ce:inf> evolution activity over Zn<ce:inf loc="post">0.5</ce:inf>Cd<ce:inf loc="post">0.5</ce:inf>S nanoparticles 2019transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The construction of efficient semiconductor/cocatalyst heterojunction is a promising strategy to promote the photocatalytic H2-production efficiency from water reduction. Herein, a novel Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction composite with superior photocatalytic H2-generation activity and stability was prepared via a facile in situ synthetic route, in which Cu2(OH)2CO3 served as cocatalyst stimulating the photocatalytic H2-evolution performance of Zn0.5Cd0.5S. The Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalyst containing 5 wt% of Cu2(OH)2CO3 exhibited a prominent H2-evolution efficiency of 275.7 μmol h−1, which is superior to the noble metal Pt-modified Zn0.5Cd0.5S photocatalyst (237.3 μmol h−1) and much higher than bare Zn0.5Cd0.5S (90.8 μmol h−1). The active Cu+/Cu0 species generated during the photoreaction process is responsible for the prominent H2-production activity of the heterojunction photocatalyst, which plays triple roles in enhancing the photoactivity of Zn0.5Cd0.5S via accelerating the charge separation, decreasing the overpotential of H2-generation and improving the reduction ability of photoinduced electrons. Moreover, the formed Cu+/Cu0 species during photoreaction can be readily oxidized back to Cu2(OH)2CO3 upon exposure to air, thus restores the photoactivity and therefore enables good reusability of the Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalysts. This work provides a new insight into the fabrication of Cu2(OH)2CO3-assisted heterojunction photocatalysts with the highly stable and efficient performances for solar-to-chemical energy conversion. The construction of efficient semiconductor/cocatalyst heterojunction is a promising strategy to promote the photocatalytic H2-production efficiency from water reduction. Herein, a novel Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction composite with superior photocatalytic H2-generation activity and stability was prepared via a facile in situ synthetic route, in which Cu2(OH)2CO3 served as cocatalyst stimulating the photocatalytic H2-evolution performance of Zn0.5Cd0.5S. The Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalyst containing 5 wt% of Cu2(OH)2CO3 exhibited a prominent H2-evolution efficiency of 275.7 μmol h−1, which is superior to the noble metal Pt-modified Zn0.5Cd0.5S photocatalyst (237.3 μmol h−1) and much higher than bare Zn0.5Cd0.5S (90.8 μmol h−1). The active Cu+/Cu0 species generated during the photoreaction process is responsible for the prominent H2-production activity of the heterojunction photocatalyst, which plays triple roles in enhancing the photoactivity of Zn0.5Cd0.5S via accelerating the charge separation, decreasing the overpotential of H2-generation and improving the reduction ability of photoinduced electrons. Moreover, the formed Cu+/Cu0 species during photoreaction can be readily oxidized back to Cu2(OH)2CO3 upon exposure to air, thus restores the photoactivity and therefore enables good reusability of the Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalysts. This work provides a new insight into the fabrication of Cu2(OH)2CO3-assisted heterojunction photocatalysts with the highly stable and efficient performances for solar-to-chemical energy conversion. Ren, Hao oth Lv, Hua oth Gong, Zhiyuan oth Cao, Yafei oth Enthalten in Elsevier Gontar, Amelia ELSEVIER Characterising shape patterns using features derived from best-fitting ellipsoids 2018 a journal devoted to applied physics and chemistry of surfaces and interfaces Amsterdam (DE-627)ELV000097942 volume:484 year:2019 day:1 month:08 pages:1061-1069 extent:9 https://doi.org/10.1016/j.apsusc.2019.04.148 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 54.74 Maschinelles Sehen VZ AR 484 2019 1 0801 1061-1069 9 |
| allfields_unstemmed |
10.1016/j.apsusc.2019.04.148 doi GBV00000000000660.pica (DE-627)ELV047163208 (ELSEVIER)S0169-4332(19)31141-9 DE-627 ger DE-627 rakwb eng 000 150 VZ 54.74 bkl Liu, Yumin verfasserin aut An insight into the trifunctional roles of Cu<ce:inf loc="post">2</ce:inf>(OH)<ce:inf loc="post">2</ce:inf>CO<ce:inf loc="post">3</ce:inf> cocatalyst in boosting the photocatalytic H<ce:inf loc="post">2</ce:inf> evolution activity over Zn<ce:inf loc="post">0.5</ce:inf>Cd<ce:inf loc="post">0.5</ce:inf>S nanoparticles 2019transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The construction of efficient semiconductor/cocatalyst heterojunction is a promising strategy to promote the photocatalytic H2-production efficiency from water reduction. Herein, a novel Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction composite with superior photocatalytic H2-generation activity and stability was prepared via a facile in situ synthetic route, in which Cu2(OH)2CO3 served as cocatalyst stimulating the photocatalytic H2-evolution performance of Zn0.5Cd0.5S. The Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalyst containing 5 wt% of Cu2(OH)2CO3 exhibited a prominent H2-evolution efficiency of 275.7 μmol h−1, which is superior to the noble metal Pt-modified Zn0.5Cd0.5S photocatalyst (237.3 μmol h−1) and much higher than bare Zn0.5Cd0.5S (90.8 μmol h−1). The active Cu+/Cu0 species generated during the photoreaction process is responsible for the prominent H2-production activity of the heterojunction photocatalyst, which plays triple roles in enhancing the photoactivity of Zn0.5Cd0.5S via accelerating the charge separation, decreasing the overpotential of H2-generation and improving the reduction ability of photoinduced electrons. Moreover, the formed Cu+/Cu0 species during photoreaction can be readily oxidized back to Cu2(OH)2CO3 upon exposure to air, thus restores the photoactivity and therefore enables good reusability of the Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalysts. This work provides a new insight into the fabrication of Cu2(OH)2CO3-assisted heterojunction photocatalysts with the highly stable and efficient performances for solar-to-chemical energy conversion. The construction of efficient semiconductor/cocatalyst heterojunction is a promising strategy to promote the photocatalytic H2-production efficiency from water reduction. Herein, a novel Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction composite with superior photocatalytic H2-generation activity and stability was prepared via a facile in situ synthetic route, in which Cu2(OH)2CO3 served as cocatalyst stimulating the photocatalytic H2-evolution performance of Zn0.5Cd0.5S. The Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalyst containing 5 wt% of Cu2(OH)2CO3 exhibited a prominent H2-evolution efficiency of 275.7 μmol h−1, which is superior to the noble metal Pt-modified Zn0.5Cd0.5S photocatalyst (237.3 μmol h−1) and much higher than bare Zn0.5Cd0.5S (90.8 μmol h−1). The active Cu+/Cu0 species generated during the photoreaction process is responsible for the prominent H2-production activity of the heterojunction photocatalyst, which plays triple roles in enhancing the photoactivity of Zn0.5Cd0.5S via accelerating the charge separation, decreasing the overpotential of H2-generation and improving the reduction ability of photoinduced electrons. Moreover, the formed Cu+/Cu0 species during photoreaction can be readily oxidized back to Cu2(OH)2CO3 upon exposure to air, thus restores the photoactivity and therefore enables good reusability of the Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalysts. This work provides a new insight into the fabrication of Cu2(OH)2CO3-assisted heterojunction photocatalysts with the highly stable and efficient performances for solar-to-chemical energy conversion. Ren, Hao oth Lv, Hua oth Gong, Zhiyuan oth Cao, Yafei oth Enthalten in Elsevier Gontar, Amelia ELSEVIER Characterising shape patterns using features derived from best-fitting ellipsoids 2018 a journal devoted to applied physics and chemistry of surfaces and interfaces Amsterdam (DE-627)ELV000097942 volume:484 year:2019 day:1 month:08 pages:1061-1069 extent:9 https://doi.org/10.1016/j.apsusc.2019.04.148 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 54.74 Maschinelles Sehen VZ AR 484 2019 1 0801 1061-1069 9 |
| allfieldsGer |
10.1016/j.apsusc.2019.04.148 doi GBV00000000000660.pica (DE-627)ELV047163208 (ELSEVIER)S0169-4332(19)31141-9 DE-627 ger DE-627 rakwb eng 000 150 VZ 54.74 bkl Liu, Yumin verfasserin aut An insight into the trifunctional roles of Cu<ce:inf loc="post">2</ce:inf>(OH)<ce:inf loc="post">2</ce:inf>CO<ce:inf loc="post">3</ce:inf> cocatalyst in boosting the photocatalytic H<ce:inf loc="post">2</ce:inf> evolution activity over Zn<ce:inf loc="post">0.5</ce:inf>Cd<ce:inf loc="post">0.5</ce:inf>S nanoparticles 2019transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The construction of efficient semiconductor/cocatalyst heterojunction is a promising strategy to promote the photocatalytic H2-production efficiency from water reduction. Herein, a novel Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction composite with superior photocatalytic H2-generation activity and stability was prepared via a facile in situ synthetic route, in which Cu2(OH)2CO3 served as cocatalyst stimulating the photocatalytic H2-evolution performance of Zn0.5Cd0.5S. The Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalyst containing 5 wt% of Cu2(OH)2CO3 exhibited a prominent H2-evolution efficiency of 275.7 μmol h−1, which is superior to the noble metal Pt-modified Zn0.5Cd0.5S photocatalyst (237.3 μmol h−1) and much higher than bare Zn0.5Cd0.5S (90.8 μmol h−1). The active Cu+/Cu0 species generated during the photoreaction process is responsible for the prominent H2-production activity of the heterojunction photocatalyst, which plays triple roles in enhancing the photoactivity of Zn0.5Cd0.5S via accelerating the charge separation, decreasing the overpotential of H2-generation and improving the reduction ability of photoinduced electrons. Moreover, the formed Cu+/Cu0 species during photoreaction can be readily oxidized back to Cu2(OH)2CO3 upon exposure to air, thus restores the photoactivity and therefore enables good reusability of the Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalysts. This work provides a new insight into the fabrication of Cu2(OH)2CO3-assisted heterojunction photocatalysts with the highly stable and efficient performances for solar-to-chemical energy conversion. The construction of efficient semiconductor/cocatalyst heterojunction is a promising strategy to promote the photocatalytic H2-production efficiency from water reduction. Herein, a novel Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction composite with superior photocatalytic H2-generation activity and stability was prepared via a facile in situ synthetic route, in which Cu2(OH)2CO3 served as cocatalyst stimulating the photocatalytic H2-evolution performance of Zn0.5Cd0.5S. The Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalyst containing 5 wt% of Cu2(OH)2CO3 exhibited a prominent H2-evolution efficiency of 275.7 μmol h−1, which is superior to the noble metal Pt-modified Zn0.5Cd0.5S photocatalyst (237.3 μmol h−1) and much higher than bare Zn0.5Cd0.5S (90.8 μmol h−1). The active Cu+/Cu0 species generated during the photoreaction process is responsible for the prominent H2-production activity of the heterojunction photocatalyst, which plays triple roles in enhancing the photoactivity of Zn0.5Cd0.5S via accelerating the charge separation, decreasing the overpotential of H2-generation and improving the reduction ability of photoinduced electrons. Moreover, the formed Cu+/Cu0 species during photoreaction can be readily oxidized back to Cu2(OH)2CO3 upon exposure to air, thus restores the photoactivity and therefore enables good reusability of the Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalysts. This work provides a new insight into the fabrication of Cu2(OH)2CO3-assisted heterojunction photocatalysts with the highly stable and efficient performances for solar-to-chemical energy conversion. Ren, Hao oth Lv, Hua oth Gong, Zhiyuan oth Cao, Yafei oth Enthalten in Elsevier Gontar, Amelia ELSEVIER Characterising shape patterns using features derived from best-fitting ellipsoids 2018 a journal devoted to applied physics and chemistry of surfaces and interfaces Amsterdam (DE-627)ELV000097942 volume:484 year:2019 day:1 month:08 pages:1061-1069 extent:9 https://doi.org/10.1016/j.apsusc.2019.04.148 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 54.74 Maschinelles Sehen VZ AR 484 2019 1 0801 1061-1069 9 |
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An insight into the trifunctional roles of Cu<ce:inf loc="post">2</ce:inf>(OH)<ce:inf loc="post">2</ce:inf>CO<ce:inf loc="post">3</ce:inf> cocatalyst in boosting the photocatalytic H<ce:inf loc="post">2</ce:inf> evolution activity over Zn<ce:inf loc="post">0.5</ce:inf>Cd<ce:inf loc="post">0.5</ce:inf>S nanoparticles |
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an insight into the trifunctional roles of cu<ce:inf loc="post">2</ce:inf>(oh)<ce:inf loc="post">2</ce:inf>co<ce:inf loc="post">3</ce:inf> cocatalyst in boosting the photocatalytic h<ce:inf loc="post">2</ce:inf> evolution activity over zn<ce:inf loc="post">0.5</ce:inf>cd<ce:inf loc="post">0.5</ce:inf>s nanoparticles |
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An insight into the trifunctional roles of Cu<ce:inf loc="post">2</ce:inf>(OH)<ce:inf loc="post">2</ce:inf>CO<ce:inf loc="post">3</ce:inf> cocatalyst in boosting the photocatalytic H<ce:inf loc="post">2</ce:inf> evolution activity over Zn<ce:inf loc="post">0.5</ce:inf>Cd<ce:inf loc="post">0.5</ce:inf>S nanoparticles |
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The construction of efficient semiconductor/cocatalyst heterojunction is a promising strategy to promote the photocatalytic H2-production efficiency from water reduction. Herein, a novel Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction composite with superior photocatalytic H2-generation activity and stability was prepared via a facile in situ synthetic route, in which Cu2(OH)2CO3 served as cocatalyst stimulating the photocatalytic H2-evolution performance of Zn0.5Cd0.5S. The Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalyst containing 5 wt% of Cu2(OH)2CO3 exhibited a prominent H2-evolution efficiency of 275.7 μmol h−1, which is superior to the noble metal Pt-modified Zn0.5Cd0.5S photocatalyst (237.3 μmol h−1) and much higher than bare Zn0.5Cd0.5S (90.8 μmol h−1). The active Cu+/Cu0 species generated during the photoreaction process is responsible for the prominent H2-production activity of the heterojunction photocatalyst, which plays triple roles in enhancing the photoactivity of Zn0.5Cd0.5S via accelerating the charge separation, decreasing the overpotential of H2-generation and improving the reduction ability of photoinduced electrons. Moreover, the formed Cu+/Cu0 species during photoreaction can be readily oxidized back to Cu2(OH)2CO3 upon exposure to air, thus restores the photoactivity and therefore enables good reusability of the Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalysts. This work provides a new insight into the fabrication of Cu2(OH)2CO3-assisted heterojunction photocatalysts with the highly stable and efficient performances for solar-to-chemical energy conversion. |
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The construction of efficient semiconductor/cocatalyst heterojunction is a promising strategy to promote the photocatalytic H2-production efficiency from water reduction. Herein, a novel Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction composite with superior photocatalytic H2-generation activity and stability was prepared via a facile in situ synthetic route, in which Cu2(OH)2CO3 served as cocatalyst stimulating the photocatalytic H2-evolution performance of Zn0.5Cd0.5S. The Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalyst containing 5 wt% of Cu2(OH)2CO3 exhibited a prominent H2-evolution efficiency of 275.7 μmol h−1, which is superior to the noble metal Pt-modified Zn0.5Cd0.5S photocatalyst (237.3 μmol h−1) and much higher than bare Zn0.5Cd0.5S (90.8 μmol h−1). The active Cu+/Cu0 species generated during the photoreaction process is responsible for the prominent H2-production activity of the heterojunction photocatalyst, which plays triple roles in enhancing the photoactivity of Zn0.5Cd0.5S via accelerating the charge separation, decreasing the overpotential of H2-generation and improving the reduction ability of photoinduced electrons. Moreover, the formed Cu+/Cu0 species during photoreaction can be readily oxidized back to Cu2(OH)2CO3 upon exposure to air, thus restores the photoactivity and therefore enables good reusability of the Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalysts. This work provides a new insight into the fabrication of Cu2(OH)2CO3-assisted heterojunction photocatalysts with the highly stable and efficient performances for solar-to-chemical energy conversion. |
| abstract_unstemmed |
The construction of efficient semiconductor/cocatalyst heterojunction is a promising strategy to promote the photocatalytic H2-production efficiency from water reduction. Herein, a novel Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction composite with superior photocatalytic H2-generation activity and stability was prepared via a facile in situ synthetic route, in which Cu2(OH)2CO3 served as cocatalyst stimulating the photocatalytic H2-evolution performance of Zn0.5Cd0.5S. The Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalyst containing 5 wt% of Cu2(OH)2CO3 exhibited a prominent H2-evolution efficiency of 275.7 μmol h−1, which is superior to the noble metal Pt-modified Zn0.5Cd0.5S photocatalyst (237.3 μmol h−1) and much higher than bare Zn0.5Cd0.5S (90.8 μmol h−1). The active Cu+/Cu0 species generated during the photoreaction process is responsible for the prominent H2-production activity of the heterojunction photocatalyst, which plays triple roles in enhancing the photoactivity of Zn0.5Cd0.5S via accelerating the charge separation, decreasing the overpotential of H2-generation and improving the reduction ability of photoinduced electrons. Moreover, the formed Cu+/Cu0 species during photoreaction can be readily oxidized back to Cu2(OH)2CO3 upon exposure to air, thus restores the photoactivity and therefore enables good reusability of the Cu2(OH)2CO3/Zn0.5Cd0.5S heterojunction photocatalysts. This work provides a new insight into the fabrication of Cu2(OH)2CO3-assisted heterojunction photocatalysts with the highly stable and efficient performances for solar-to-chemical energy conversion. |
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An insight into the trifunctional roles of Cu<ce:inf loc="post">2</ce:inf>(OH)<ce:inf loc="post">2</ce:inf>CO<ce:inf loc="post">3</ce:inf> cocatalyst in boosting the photocatalytic H<ce:inf loc="post">2</ce:inf> evolution activity over Zn<ce:inf loc="post">0.5</ce:inf>Cd<ce:inf loc="post">0.5</ce:inf>S nanoparticles |
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https://doi.org/10.1016/j.apsusc.2019.04.148 |
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Ren, Hao Lv, Hua Gong, Zhiyuan Cao, Yafei |
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Ren, Hao Lv, Hua Gong, Zhiyuan Cao, Yafei |
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10.1016/j.apsusc.2019.04.148 |
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2024-07-06T22:08:54.310Z |
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