期刊
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
卷 92, 期 -, 页码 167-173出版社
ELSEVIER
DOI: 10.1016/j.ijbiomac.2016.06.092
关键词
Water-soluble cellulose acetate; Silver nanoparticles; Homogeneous synthesis; Catalysis; Antibacterial activity
资金
- National Science Foundation of China [51203105, 51433006]
- State Key Laboratory of Polymer Materials Engineering [sklpme2015-2-02]
We report a facile and efficient approach for synthesis of well-dispersed and stable silver nanoparticles (Ag NPs) using water-soluble cellulose acetate (CA) as both reductant and stabilizer. Partially substituted CA with highly active hydroxyl groups and excellent water-solubility is able to reduce silver ions in homogeneous aqueous medium effectively. The synthesized Ag NPs were characterited by UV-vis spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy and energy dispersive X-ray spectroscope analysis. The as-prepared Ag NPs were well-dispersed, showing a surface plasmon resonance peak at 426 nm. The resulted Ag NPs@CA nanohybrids exhibit high catalytic activity for the reduction of 4-nitrophenol to 4-aminophenol in the presence of NaBH4. Meanwhile, the nanohybrids are also effective in inhibiting the growth of bacterial. This environmentally friendly method promotes the use of renewable natural resources to prepare a variety of inorganic-organic materials for catalysis, antibacterial, sensors and other applications. (C) 2016 Elsevier B.V. All rights reserved.
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