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A Hollow Porous CdS Photocatalyst

Efficient light harvesting and charge separation are of great importance in solar‐energy conversion on photocatalysts. Herein, the synthesis of a novel hollow porous CdS photocatalyst with effectively restrained electron–hole recombination is reported. By using microporous zeolites as a host and a h... Full description

Journal Title: Advanced Materials November 2018, Vol.30(45), pp.n/a-n/a
Main Author: Sun, Qiming
Other Authors: Wang, Ning , Yu, Jihong , Yu, Jimmy C.
Format: Electronic Article Electronic Article
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ID: ISSN: 0935-9648 ; E-ISSN: 1521-4095 ; DOI: 10.1002/adma.201804368
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recordid: wj10.1002/adma.201804368
title: A Hollow Porous CdS Photocatalyst
format: Article
creator:
  • Sun, Qiming
  • Wang, Ning
  • Yu, Jihong
  • Yu, Jimmy C.
subjects:
  • Cadmium Sulfide
  • Charge Separation
  • Hydrogen Evolution
  • Photocatalysis
  • Zeolites
ispartof: Advanced Materials, November 2018, Vol.30(45), pp.n/a-n/a
description: Efficient light harvesting and charge separation are of great importance in solar‐energy conversion on photocatalysts. Herein, the synthesis of a novel hollow porous CdS photocatalyst with effectively restrained electron–hole recombination is reported. By using microporous zeolites as a host and a hard template, ultrasmall Pd and PdS nanoparticles can be anchored separately onto the inner and outer surfaces of a hollow CdS structure. The metallic Pd pulls the photoexcited electrons away from CdS while PdS pushes the holes for more thorough oxidation of the sacrificial agent. The final Pd@CdS/PdS product exhibits superior visible‐light‐driven photocatalytic H evolution rate of up to 144.8 mmol h g. This is among the highest values of all the reported CdS‐based catalysts. This synthetic approach may be used to fabricate other highly efficient catalysts with spatially separated cocatalysts. is synthesized by a versatile approach using microporous zeolites as the hosts and templates. The charge recombination can be greatly suppressed by the push and pull actions of the cocatalysts. The Pd@CdS/PdS product exhibits an impressive photocatalytic H evolution rate of 144.8 mmol h g.
language:
source:
identifier: ISSN: 0935-9648 ; E-ISSN: 1521-4095 ; DOI: 10.1002/adma.201804368
fulltext: fulltext
issn:
  • 0935-9648
  • 09359648
  • 1521-4095
  • 15214095
url: Link


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titleA Hollow Porous CdS Photocatalyst
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subjectCadmium Sulfide ; Charge Separation ; Hydrogen Evolution ; Photocatalysis ; Zeolites
descriptionEfficient light harvesting and charge separation are of great importance in solar‐energy conversion on photocatalysts. Herein, the synthesis of a novel hollow porous CdS photocatalyst with effectively restrained electron–hole recombination is reported. By using microporous zeolites as a host and a hard template, ultrasmall Pd and PdS nanoparticles can be anchored separately onto the inner and outer surfaces of a hollow CdS structure. The metallic Pd pulls the photoexcited electrons away from CdS while PdS pushes the holes for more thorough oxidation of the sacrificial agent. The final Pd@CdS/PdS product exhibits superior visible‐light‐driven photocatalytic H evolution rate of up to 144.8 mmol h g. This is among the highest values of all the reported CdS‐based catalysts. This synthetic approach may be used to fabricate other highly efficient catalysts with spatially separated cocatalysts. is synthesized by a versatile approach using microporous zeolites as the hosts and templates. The charge recombination can be greatly suppressed by the push and pull actions of the cocatalysts. The Pd@CdS/PdS product exhibits an impressive photocatalytic H evolution rate of 144.8 mmol h g.
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titleA Hollow Porous CdS Photocatalyst
descriptionEfficient light harvesting and charge separation are of great importance in solar‐energy conversion on photocatalysts. Herein, the synthesis of a novel hollow porous CdS photocatalyst with effectively restrained electron–hole recombination is reported. By using microporous zeolites as a host and a hard template, ultrasmall Pd and PdS nanoparticles can be anchored separately onto the inner and outer surfaces of a hollow CdS structure. The metallic Pd pulls the photoexcited electrons away from CdS while PdS pushes the holes for more thorough oxidation of the sacrificial agent. The final Pd@CdS/PdS product exhibits superior visible‐light‐driven photocatalytic H evolution rate of up to 144.8 mmol h g. This is among the highest values of all the reported CdS‐based catalysts. This synthetic approach may be used to fabricate other highly efficient catalysts with spatially separated cocatalysts. is synthesized by a versatile approach using microporous zeolites as the hosts and templates. The charge recombination can be greatly suppressed by the push and pull actions of the cocatalysts. The Pd@CdS/PdS product exhibits an impressive photocatalytic H evolution rate of 144.8 mmol h g.
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abstractEfficient light harvesting and charge separation are of great importance in solar‐energy conversion on photocatalysts. Herein, the synthesis of a novel hollow porous CdS photocatalyst with effectively restrained electron–hole recombination is reported. By using microporous zeolites as a host and a hard template, ultrasmall Pd and PdS nanoparticles can be anchored separately onto the inner and outer surfaces of a hollow CdS structure. The metallic Pd pulls the photoexcited electrons away from CdS while PdS pushes the holes for more thorough oxidation of the sacrificial agent. The final Pd@CdS/PdS product exhibits superior visible‐light‐driven photocatalytic H evolution rate of up to 144.8 mmol h g. This is among the highest values of all the reported CdS‐based catalysts. This synthetic approach may be used to fabricate other highly efficient catalysts with spatially separated cocatalysts. is synthesized by a versatile approach using microporous zeolites as the hosts and templates. The charge recombination can be greatly suppressed by the push and pull actions of the cocatalysts. The Pd@CdS/PdS product exhibits an impressive photocatalytic H evolution rate of 144.8 mmol h g.
doi10.1002/adma.201804368
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date2018-11