Fe3O4 and Au nanoparticles dispersed on the graphene support as a highly active catalyst toward the reduction of 4-nitrophenol

Literature Information

Publication Date 2015-11-16
DOI 10.1039/C5CP05336F
Impact Factor 3.676
Authors

Yan Wang, Hai Li, Jijun Zhang, Xinyu Yan, Zexiang Chen


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Abstract

We report a highly efficient and reusable bifunctional nanostructured composite catalyst synthesized by a scalable facile hydrothermal method which enables the precise control of size and morphology of nanoparticles, wherein Au nanoparticles (NPs) and Fe3O4 particles exhibit excellent dispersing ability on the rGO (reduced graphene oxide) sheet surface (designated as rGO/Fe3O4/Au) to avoid adverse agglomeration between the nano particles and overlapping of the rGO sheets concurrently. The resultant bifunctional composite shows a high performance in the catalytic reduction of 4-nitrophenol (4-NP) with a conversion of 97% in 5 min and presents good reusability through highly efficient recovery by using external magnetic fields. In particular, there was no significant loss in catalytic activity of the reused catalysts even after being recycled for 8 cycles, displaying attractive potential in industrial applications where separation and recycling are imperative. The rational design provides an approach to synthesize a graphene-based composite with an interesting structure and multi-functional properties as well.

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Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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