Nickel nanoparticle-activated MoS2 for efficient visible light photocatalytic hydrogen evolution.
Nanoscale
; 14(24): 8601-8610, 2022 Jun 23.
Article
em En
| MEDLINE
| ID: mdl-35543218
ABSTRACT
Direct sunlight-induced water splitting for photocatalytic hydrogen evolution is the dream for an ultimate clean energy source. So far, typical photocatalysts require complicated synthetic processes and barely work without additives or electrolytes. Here, we report the realization of a hydrogen evolution strategy with a novel Ni-Ag-MoS2 ternary nanocatalyst under visible/sun light. Synthesized through an ultrasound-assisted wet method, the composite exhibits stable catalytic activity for long-term hydrogen production from both pure and natural water. A high efficiency of 73 µmol g-1 W-1 h-1 is achieved with only a visible light source and the (MoS2)84Ag10Ni6 catalyst, matching the values of present additive-enriched photocatalysts. Verified by experimental characterizations and first-principles calculations, the enhanced photocatalytic ability is attributed to effective charge migration through the dangling bonds at the Ni-Ag-MoS2 alloy interface and the activation of the MoS2 basal planes.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Nanoscale
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Finlândia
País de publicação:
ENGLAND
/
ESCOCIA
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GB
/
GREAT BRITAIN
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INGLATERRA
/
REINO UNIDO
/
SCOTLAND
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UK
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UNITED KINGDOM