Back to Search Start Over

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

Authors :
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
Source :
Advanced Functional Materials; 11/12/2024, Vol. 34 Issue 46, p1-18, 18p
Publication Year :
2024

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. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
1616301X
Volume :
34
Issue :
46
Database :
Complementary Index
Journal :
Advanced Functional Materials
Publication Type :
Academic Journal
Accession number :
180802900
Full Text :
https://doi.org/10.1002/adfm.202402392