Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 2, Issue 30, Pages 11966-11973Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ta01920b
Keywords
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Funding
- National Basic Research Program of China (973 Program) [2012CB933700-G]
- National Natural Science Foundation of China [21101165]
- Guangdong Innovative Research Team Program [2011D052, KYPT20121228160843692]
- Shenzhen Electronic Packaging Materials Engineering Laboratory [2012-372]
- Shenzhen basic research plan [JC201005270372A, GJHS20120702091802836, JSGG20120615161915279]
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Novel hierarchical architectures of porous copper (Cu) microspheres assembled with nanoparticles have been successfully synthesized by ingeniously selecting the precursor and complexant through a facile wet chemical reduction method. The resultant porous Cu microspheres have a size distribution of 700 50 nm and have excellent monodispersity. The synergistic effect between the precursor of slightly soluble copper hydroxide and the complexants of polyacrylic acid and ethanol amine exactly induces the generation of unique porous hierarchical architectures. The obtained porous Cu microspheres were applied to reduce and degrade different organic dyes with high concentrations (4-nitrophenol, methylene blue, and rhodamine B) in the presence of NaBH4. Compared with solid Cu particles that have the same size, these porous Cu microspheres exhibit more excellent catalytic activity due to their hierarchical structures. Moreover, the catalyst with universal applicability could be easily separated from the catalytic system and sustainedly possess high stability in recycled reactions.
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