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초록· 키워드
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The biocompatibility and plasmonic properties of Au nanoparticles make them useful for photothermal therapy, drug delivery, imaging, and many other fields. This study demonstrated a novel, facile, economic, and green synthetic method to produce gold nanoparticles. Gold nanoparticles (AuNPs) with spherical and triangular shapes were effectively synthesized using only Schisandra chenesis fruit extract as the capping and reducing agent. The shape of the AuNPs could be engineered simply by adjusting the molar concentration of HAuCl₄ in the reaction mixture. The as-synthesized AuNPs were characterized using UV-VIS spectroscopy, transmission electron microscopy (TEM), X-ray diffraction (XRD), dynamic light scattering (DLS), and energy dispersive X-ray analysis (EDXA). This study revealed that by using the HAuCl₄ concentration in the AuNP synthesis, the shape and size of the AuNPs could be controlled by the concentration of HAuCl₄ and Schisandra chinensis fruit extract as a surfactant. The as-synthesized AuNPs samples had sufficient colloidal stability without noticeable aggregation and showed the predominant growth of the (111) plane of face-centered cubic gold during the crystal growth. The catalytic efficiency of the AuNPs synthesized using Schisandra chenesis fruit extract was examined by monitoring the catalytic reduction of 4-nitrophenol to 4-aminophenol using Ultraviolet-visible spectroscopy (UV-Vis spectroscopy). The synthesized AuNPs showed good catalytic activity to reduce 4-nitrophenol to 4-aminophenol, revealing their practical usefulness.
목차
Abstract
1. Introduction
2. Material and Methods
3. Results and Discussion
4. Conclusions
References
참고문헌 (24)
참고문헌 신청
Zhang, Q. / 2010 / Seed-Mediated Synthesis of Ag Nanocubes with Controllable Edge Lengths in the Range of 30-200 nm and Comparison of Their Optical Properties / J. Am. Chem. Soc 132:11372~11378
Pietrobon, B. / 2008 / Photochemical Synthesis of Monodisperse Size-Controlled Silver Decahedral Nanoparticles and Their Remarkable Optical Properties / Chem. Mater 20(16):5186~5190
Zhang, J. / 2010 / Photomediated Synthesis of Silver Triangular Bipyramids and Prisms : The Effect of pH and BSPP / J. Am. Chem. Soc 132(35):12502~12510
Crespo-Biel, O. / 2006 / Writing with Molecules on Molecular Printboards / Dalton. Trans 23:2737~2741
Gupta, K. / 2010 / Optical and Electrical Transport Properties of Polyaniline-Silver Nanocomposite / Synth. Met 160(13):1566~1573
Pietrobon, B. / 2008 / Photochemical Synthesis of Monodisperse Size-Controlled Silver Decahedral Nanoparticles and Their Remarkable Optical Properties / Chem. Mater 20(16):5186~5190
Zhang, J. / 2010 / Photomediated Synthesis of Silver Triangular Bipyramids and Prisms : The Effect of pH and BSPP / J. Am. Chem. Soc 132(35):12502~12510
Crespo-Biel, O. / 2006 / Writing with Molecules on Molecular Printboards / Dalton. Trans 23:2737~2741
Gupta, K. / 2010 / Optical and Electrical Transport Properties of Polyaniline-Silver Nanocomposite / Synth. Met 160(13):1566~1573
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