期刊
LANGMUIR
卷 29, 期 15, 页码 4901-4907出版社
AMER CHEMICAL SOC
DOI: 10.1021/la400355u
关键词
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资金
- National Natural Science Foundation of China [20904003]
- Fundamental Research Funds for the Central Universities of China
- State Key Lab for Advanced Metals and Materials [2012-ZD05]
- Program for Changjiang Scholars and Innovative Research Team in University
- Program for New Century Excellent Talents in University of Ministry of Education of China [NCET-11-0576]
A straightforward, economically viable, and green approach for the synthesis of well-stabilized Au/Ag bimetallic nanoparticles is described; this method uses nontoxic and renewable degraded pueraria starch (DPS) as a matrix and mild reaction conditions. The DPS acted as both a reducing agent and a capping agent for the bimetallic nanoparticles. Au/Ag bimetallic nanoparticles were successfully grown within the DPS matrixes, and the bimetallic structures were characterized using various methods, including high-resolution transmission electron microscopy, energy-dispersive X-ray, and X-ray diffraction. Moreover, it was shown that these DPS-capped Au/Ag bimetallic nanoparticles could function as catalysts for the reduction of 4-nitrophenol in the presence of NaBH4 and were more effective than Au or Ag monometallic nanoparticles.
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