Bi 2 S 3 @Ag 2 S nano-heterojunction decorated self-floating carbon fiber cloth and enhanced solar-driven photothermal-photocatalytic performance
The difficult recycle, secondary pollution and insufficient sunlight utilization of powder photocatalysts are main obstacles for practical applications. Bi S @Ag S heterojunction supported on surface of carbon fiber cloth (CC) are fabricated through hydrothermal in-situ growth method combined with u...
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Veröffentlicht in: | Chemosphere (Oxford) 2021-05, Vol.271, p.129500 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | The difficult recycle, secondary pollution and insufficient sunlight utilization of powder photocatalysts are main obstacles for practical applications. Bi
S
@Ag
S heterojunction supported on surface of carbon fiber cloth (CC) are fabricated through hydrothermal in-situ growth method combined with ultrasonic loading strategy, which can be self-floated on water surface. Bi
S
@Ag
S nano-heterojunction with narrow band gap shows enhanced full spectrum absorption, which is in favor of improving the photocatalytic-photothermal performance. Self-floating CC as a substrate not only absorbs solar light converting to thermal energy, but also favors the recycle of catalysts. The resultant Bi
S
@Ag
S/CC composite films exhibit excellent photothermal conversion performance and photocatalytic degradation activity for tetracycline hydrochloride in low temperature wastewater under simulated sunlight. Experimental results confirm that the superoxide group (·O
) is the main factor for the robust catalytic performance. The good photothermal-photocatalytic performance can be ascribed to the efficient absorption of sunlight for self-floating characteristics and high charge carriers separation efficiency of Bi
S
@Ag
S nano-heterojunction. This novel self-floating photothermal-photocatalytic film will have potential applications in fields of environment. |
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ISSN: | 1879-1298 |