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Fabrication of CdS Frame‐in‐Cage Particles for Efficient Photocatalytic Hydrogen Generation under Visible‐Light Irradiation
Author(s) -
Zhang Peng,
Luan Deyan,
Lou Xiong Wen David
Publication year - 2020
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.202004561
Subject(s) - photocatalysis , materials science , sulfidation , prussian blue , visible spectrum , irradiation , semiconductor , fabrication , hydrogen production , nanotechnology , optoelectronics , hydrogen , photochemistry , chemical engineering , catalysis , electrochemistry , electrode , chemistry , sulfur , organic chemistry , medicine , physics , alternative medicine , pathology , nuclear physics , engineering , metallurgy
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.