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Novel Facile One‐Pot Synthesis of Bi 2 S 3 −BiOCl Ultrathin Hetero‐nanosheets for Selective Alcohol Oxidation
Author(s) -
Yang Shouning,
Liu Xiaoyang,
Lu Sijia,
Li Zhuo,
Zhang Yanmin,
Yu Shaoning,
Song Jian,
Ding Chuanfan,
Yang Huayan
Publication year - 2021
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.202100011
Subject(s) - photocatalysis , radical , catalysis , heterojunction , materials science , alcohol oxidation , hydrothermal circulation , nanotechnology , noble metal , photochemistry , quantum dot , electron transfer , chemical engineering , chemistry , organic chemistry , optoelectronics , engineering
The development of eco‐friendly and low cost catalysts is challenging. Here, heterostructures of Bi 2 S 3 quantum dots (QDs) doped onto ultrathin BiOCl nanosheets were synthesized by a facile hydrothermal method to exploit efficient photosensitizers with appropriate electronic states to enhance the transfer of electrons. The obtained Bi 2 S 3 −BiOCl showed highly efficient photocatalytic ability for selective oxidation of aromatic alcohols to aldehydes. More oxygen vacancies are formed on the exposed 001 facet of the ultrathin BiOCl, which can effectively trap electrons and form .O 2 − radicals. The cooperation between the BiOCl and the Bi 2 S 3 QDs effectively separates photogenerated electron‐hole pairs at the heterointerface and facilitates the cooperative actions of .O 2 − radicals and holes, which brings about a desirable photocatalytic eciency for the selective oxidation of aromatic alcohols. This work highlights the synergistic effect of semiconductor QDs and two‐dimensional materials on selective conversion processes and provides a new design paradigm using noble metal‐free heteromaterials with high photocatalytic activity. This opens new possibilities for photocatalyst design using heteromaterials with high photocatalytic activity.