| Summary: | 碩士 === 國立臺灣師範大學 === 化學研究所 === 89 === In this thesis, many photosensitive compounds, such as thionine (denoted TH), phenosafranin (denoted PSF), phenazine methosulfate (denoted PZM), rose bengal (RB), 9-cyanoanthracence (CA) and 9,10-dicyanoanthracence (DCA), and their zeolite-modified particles have been investigated for their potential in photoelectrochemical applications. According to emission spectroscopy and cyclic voltammetry as well as laser flash photolysis, these dyes showed strong oxidation ability as being brought to their excited states. For instance, most of them can oxidize electron donor, like diphenylamine (denoted DPA), as exposed to irradiation.
Based on these photochemical properties, a non-silver-based photographic system was developed. Indophenol blue was formed on the surface of the films made with dye-modified zeolite particles, N,N-diethyl —1,4-phenylenediamine (DEPD) and α-naphthol during illumination. Experimental results also showed that organic compounds, like triphenylphosphine (denoted Ph3P) and triphenylmethane (denoted Ph3CH), could be selectively fluorinated in the presence of fluoride ions and these dyes.
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