Fabrication of CdS Frame‐in‐Cage Particles for Efficient Photocatalytic Hydrogen Generation under Visible‐Light Irradiation

The design of advanced structures for semiconductor photocatalysts is an effective approach to enhance their performance toward solar‐to‐chemical energy conversion. Hollow and frame‐like structures show advantageous features for photocatalytic reactions with enlarged surface area, shortened charge‐t...

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Published in:Advanced materials (Weinheim) 2020-10, Vol.32 (39), p.e2004561-n/a
Main Authors: Zhang, Peng, Luan, Deyan, Lou, Xiong Wen (David)
Format: Article
Language:English
Subjects:
Cages
CdS
Charge transfer
Chemical energy
Cubes
Energy conversion
frames
H 2 generation
Hydrogen production
Light irradiation
Materials science
Photocatalysis
Photocatalysts
Pigments
Prussian blue analogs
Sulfidation
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cited_by cdi_FETCH-LOGICAL-c3871-d8d863ec81aebd4e28a76831230c344e2bbec1255960bc163b32c32601e6e06d3
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container_title Advanced materials (Weinheim)
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creator Zhang, Peng
Luan, Deyan
Lou, Xiong Wen (David)
description The design of advanced structures for semiconductor photocatalysts is an effective approach to enhance their performance toward solar‐to‐chemical energy conversion. Hollow and frame‐like structures show advantageous features for photocatalytic reactions with enlarged surface area, shortened charge‐transfer distance, promoted light‐absorption ability, and enhanced mass‐transfer capability. Here, a facile two‐step sulfidation strategy is developed to fabricate unique CdS frame‐in‐cage particles for photocatalytic hydrogen generation. Cd‐based Prussian blue analog (Cd‐PBA) cubes are first converted to Cd‐PBA cube‐in‐CdS cage particles, which are further transformed to CdS frame‐in‐cage particles. Benefiting from the novel frame‐in‐cage structure, the obtained CdS photocatalyst exhibits high activity under visible‐light irradiation with the hydrogen generation rate of 13.6 mmol h−1 g−1, which is much enhanced compared with those of the CdS cubes and cages. CdS frame‐in‐cage particles are fabricated through a two‐step sulfidation approach. With the advantages of the novel hollow structure, the CdS frame‐in‐cage particles exhibit enhanced photocatalytic activity toward H2 generation compared with CdS cubes and cages.
doi_str_mv 10.1002/adma.202004561
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source Wiley-Blackwell Journals
subjects Cages
CdS
Charge transfer
Chemical energy
Cubes
Energy conversion
frames
H 2 generation
Hydrogen production
Light irradiation
Materials science
Photocatalysis
Photocatalysts
Pigments
Prussian blue analogs
Sulfidation
title Fabrication of CdS Frame‐in‐Cage Particles for Efficient Photocatalytic Hydrogen Generation under Visible‐Light Irradiation
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