| Summary: | 碩士 === 國立中正大學 === 化學工程所 === 95 === As the nanomaterials curriculum is going to be integrated with the chemistry curriculum of senior high schools and vocational high schools in 2006, this work aims to design a series of nanoparticle preparation experiments that are practical for senior high school and vocational high school students.
Due to limited resources in most senior high schools and vocational high schools, we design two simple experiments to prepare silver nanoparticles. One is through chemical reduction reaction and the other is by electrochemical reduction. For the electrochemical method, the anode is Ag and the cathode is Pt. After electrolysis, the solution appears brownish-yellow. The chemical reduction method utilizes a reductant（HCOH）to reduce AgNO3 , by which the solution also appears brownish-yellow.
Our results show that students in senior high school and vocational high school can prepare sliver nanoparticles by simple methods and demonstrate their results through light scattering and observation of color change. Meanwhile, we have utilized UV-visible spectrometer and transmission electron microscope ( TEM ) to verify that silver nanoparticle were formed in both procedures.
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