(Hollow Au–Ag nanoparticles)–TiO2 composites for improved photocatalytic activity prepared from block copolymer-stabilized bimetallic nanoparticles

Literature Information

Publication Date 2015-04-01
DOI 10.1039/C4CP06093H
Impact Factor 3.676
Authors

Na Li, Xiaoyu Zhang, Shulong Yuan, Xiaokai Zhang, Yuzhen Yuan, Xue Li


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Abstract

Composite nanoparticles (NPs) containing a TiO2 outer shell and an inner core of hollow AuAg NPs (H-AuAg-NPs) were prepared using hollow AuAg NPs with block copolymer shells as templates, and their photocatalytic activities were investigated by the decomposition of methylene blue dye under UV irradiation. It was found that the H-AuAg-NP–TiO2 composite NPs showed higher photocatalytic activity than AuAg alloy–TiO2 composite NPs, Ag/TiO2 NPs and TiO2 NPs. In addition, the photocatalytic activity first increases with increasing the TiO2 content from 2.5% to 5.0% and then decreases with a further increase in TiO2 content from 10.0% to 15.0%.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
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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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