製備多熱點聚醯胺酸/氧化鋅/奈米銀核殼顆粒探討表面拉曼散射

Preparation Multi-Hotspot of Poly(Amic Acid)/ZnO/Nano Silver Core-Shell Particles and Investigation Surface-Enhanced Raman Scattering

謝政諺(CHENG-YEN HSIEH)

指導教授 ： 許克瀛

中原大學/工學院/化學工程研究所/碩士(2016年)

https://doi.org/10.6840/cycu201600461

摘要

本研究製備聚醯胺酸/氧化鋅/奈米銀複合顆粒作為表面增強拉曼基材使用，利用先前實驗室製備出聚醯胺酸/氧化鋅複合顆粒當作粒種再添加奈米銀對氧化鋅殼層進行改質，進而製備出聚醯胺酸/氧化鋅/奈米銀複合顆粒，並利用SEM、TEM、XRD、EDX進行材料結構分析與利用UV-Visible進行光學性質分析。
聚醯胺酸/氧化鋅/奈米銀複合顆粒應用於表面增強拉曼散射，以此複合顆粒當作基材，將不同體積濃度的Rhodamine 6G（Rh 6G）染料滴在核殼顆粒上，得知染料(Rhodamine 6G)的濃度已減低至10-6也能展現一定的訊號強度，並可在低能量下作為光觸媒降解Rhodamine 6G，因此此複合顆粒可作為拉曼散射基材，同時增加了回收功能。

關鍵字

核殼顆粒 ； 氧化鋅 ； 奈米銀 ； 表面增強拉曼散射

並列摘要

The aim of the work is to prepare Poly(amic acid)/Zinc Oxide/Nano silver core-shell particles,using as a Surface-Enchanced Raman Scattering .In the previous work,surface modification of ZnO shell of Poly(amic acid)/Zinc Oxide core shell spheres Ag nanoparticles was carried out.Thus,Ag nanoparticles will locate selectively at suitable sites on the surface of ZnO.Finally, poly(amic acid) / Znic Oxide/nano silver core-shell particles can be prepared and were characterized by SEM,TEM,XRD,EDX and used UV-Visible opticle properties analysis.
Use the Polyamide acid/Zinc Oxide/Nano silver composite particles in surface can enhance the Raman scattering, as composite particles as our substrate , try different volume concentrations of Rhodamine 6G (Rh 6G) dye dripping on the core-shell particles can find the concentration of dye (Rhodamine 6G) has been reduced to 10-6 and have a certain degree of signal strength, also use the low energy in application of photocatalyst for Rhodamine 6G , base on this result, use these composite particles for Raman scattering substrate can increase the recycling for using.

並列關鍵字

Core-shell particles ； Zinc oxide ； nano silver ； Surface Enhanced Raman scattering

參考文獻

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