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Ternary Graphene–TiO 2 –Fe 3 O 4 Nanocomposite as a Recollectable Photocatalyst with Enhanced Durability
Author(s) -
Lin Yue,
Geng Zhigang,
Cai Hongbing,
Ma Lu,
Chen Jia,
Zeng Jie,
Pan Nan,
Wang Xiaoping
Publication year - 2012
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201200454
Subject(s) - nanocomposite , photocatalysis , graphene , ternary operation , oxide , nanoparticle , chemistry , chemical engineering , nanotechnology , materials science , catalysis , organic chemistry , computer science , engineering , programming language
We developed a ternary nanocomposite of graphene–TiO 2 –Fe 3 O 4 (GTF) as a low‐cost, recollectable, and stable photocatalyst for the degradation of organic dyes. The nanocomposite has been successfully prepared by successively growing TiO 2 and Fe 3 O 4 nanoparticles on the reduced graphene oxide (RGO). The as‐synthesized GTF nanocomposite shows higher photocatalytic activity as compared with that of pure TiO 2 nanoparticles and can be easily collected from water using a magnet. More importantly, benefiting from the presence of RGO, GTF can suppress the photodissolution behavior of Fe 3 O 4 nanoparticles that usually occurrs in TiO 2 –Fe 3 O 4 binary nanocomposites, rendering it a highly stable photocatalyst. Furthermore, the GTF nanocomposite works well in different pH environments and is capable of eliminating mixtures of various dyes. In addition, the GTF is also able to degrade the dyes under sunlight. These attractive features make the GTF nanocomposite a promising photocatalyst for practical use in wastewater treatment.