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Synthesis of flower‐like Bi 2 S 3 /Cu 7.2 S 4 composites and their photocatalytic performance
Author(s) -
Chen Shenghua,
Yin Hanquan,
Zeng Dongming,
Chen Limiao
Publication year - 2017
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201600330
Subject(s) - photocatalysis , rhodamine b , photodegradation , materials science , chalcogenide , catalysis , hydrothermal circulation , copper sulfide , copper , composite material , morphology (biology) , sulfide , chemical engineering , chemistry , metallurgy , organic chemistry , biology , engineering , genetics
Hybrid materials exhibit unique optical and catalytic properties that are dependent on their composition, morphology and structure. In this work, Bi 2 S 3 /Cu 7.2 S 4 composites with flower‐like morphology have been successfully prepared via a facile and effective approach based on a hydrothermal method and an ion‐exchange reaction. The molar composition of Bi and Cu in the Bi 2 S 3 /Cu 7.2 S 4 composites can be simply modulated by changing the amount of CuCl 2 ·2H 2 O. The photocatalytic activity of the obtained product was evaluated through the photodegradation of Rhodamine B (RhB) under visible light irradiation. The results show clearly that the Bi 2 S 3 /Cu 7.2 S 4 composites possess a much high photocatalytic activity (about 92.2 % of RhB was degraded within 75 min) than pure Bi 2 S 3 and copper sulfide particles. This work provides useful insight into the rational design and preparation of novel and effective chalcogenide‐based hybrid photocatalysts.