Journal
JOURNAL OF MOLECULAR STRUCTURE
Volume 1099, Issue -, Pages 142-148Publisher
ELSEVIER
DOI: 10.1016/j.molstruc.2015.06.059
Keywords
Poly(amic acid); Znic oxide; Heterocoagulation method; Composites; Surface-enhanced Raman scattering (SERS); Rhodamine 6G (R6G)
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Funding
- National Science Council [NSC 99-2221-E-033-008-]
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Raspberry like structured PAA/ZnO microsphere were realized by coating the ZnO nanoparticles onto the surface of PAA microsphere via a novel solution method. The obtained materials were characterized by means of X-ray diffraction (XRD), scanning electron microscopy(SEM),transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR) and ultraviolet-visible (UV-Vis) absorption measurement. It was shown that ZnO nanoparticles were successfully grown on the surface of PAA microsphere. The absorption band of PAA/ZnO raspberry microsphere showed a large redshift comparing to pure ZnO nanoparticles, indicating the strong interfacial interaction between FAA and ZnO. This approach was simple, mild and readily scaled up, affording a simple method for the synthesis of raspberry like structure. The resulting Poly(amic acid)/ZnO composite structures could be used as a substrate for surface enhanced Raman scattering(SERS). (C) 2015 Elsevier B.V. All rights reserved.
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