Details

Autor(en) / Beteiligte

• Chen, Yi‐An
• Nakayasu, Yuhi
• Lin, Yu‐Chang
• Kao, Jui‐Cheng
• Hsiao, Kai‐Chi
• Le, Quang‐Tuyen
• Chang, Kao‐Der
• Wu, Ming‐Chung
• Chou, Jyh‐Pin
• Pao, Chun‐Wei
• Chang, Tso‐Fu Mark
• Sone, Masato
• Chen, Chun‐Yi
• Lo, Yu‐Chieh
• Lin, Yan‐Gu
• Yamakata, Akira
• Hsu, Yung‐Jung

Titel

Double‐Hollow Au@CdS Yolk@Shell Nanostructures as Superior Plasmonic Photocatalysts for Solar Hydrogen Production

Ist Teil von

• Advanced functional materials, 2024-06

Erscheinungsjahr

2024

Quelle

Wiley Blackwell Single Titles

Beschreibungen/Notizen

• Abstract Structural engineering has proven effective in tailoring the photocatalytic properties of semiconductor nanostructures. In this work, a sophisticated double‐hollow yolk@shell nanostructure composed of a plasmonic, mobile, hollow Au nanosphere (HGN) yolk and a permeable, hollow CdS shell is proposed to achieve remarkable solar hydrogen production. The shell thickness of HGN@CdS is finely adjusted from 7.7, 18.4 to 24.5 nm to investigate its influence on the photocatalytic performance. Compared with pure HGN, pure CdS, a physical mixture of HGN and CdS, and a counterpart single‐hollow cit‐Au@CdS yolk@shell nanostructure, HGN@CdS exhibits superior hydrogen production under visible light illumination (λ = 400–700 nm). The apparent quantum yield of hydrogen production reaches 8.2% at 320 nm, 6.2% at 420 nm, and 4.4% at 660 nm. The plasmon‐enhanced activity at 660 nm is exceptional, surpassing the plasmon‐induced photoactivities of the state‐of‐the‐art plasmonic photocatalysts ever reported. The superiority of HGN@CdS originates from the creation of charge separation state at HGN/CdS heterojunction, the considerably long‐lived hot electrons of plasmonic HGN, the magnified electric field, and the advantageous features of double‐hollow yolk@shell nanostructures. The findings can provide a guideline for the rational design of versatile double‐hollow yolk@shell nanostructures for widespread photocatalytic applications.