Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 6, Issue 16, Pages 14469-14476Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am5037737
Keywords
Cu2O; h-BN; supporting substrates; composites; p-nitrophenol reduction
Funding
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry
- National Basic Research Program of China (973 Program) [2013CB632405]
- National Natural Science Foundation of China (NSFC) [21273038, U1033603]
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Chinese Academy of Sciences [2008DP173016]
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We demonstrate here that two-dimensional boron nitride (h-BN) nanosheets can be employed as a robust supporting substrate to incorporate function metal oxides. The Cu2O@h-BN composites are thus obtained by dispersing Cu2O octahedrons on the surfaces of h-BN nanosheets. The -OH and -NH groups on the surfaces of h-BN nanosheets are found to be beneficial for anchoring Cu2O octahedrons. Moreover, the Cu2O@h-BN composites exhibit superior activity for the reduction of p-nitrophenol to pure Cu2O crystals and h-BN nanosheets. The h-BN component in the composites plays a critical role in the formation and adsorbing of the p-nitrophenolate ions, and, at the same time, Cu2O components react with brohydride ions and transfer a surface hydrogen species and electrons, resulting in the reduction of p-nitrophenol into p-aminophenol. Our results provide a new approach for the rational design and development of metal oxides composites and open the way to a range of important applications of h-BN-based materials.
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