The Synthesis And Application Of Phthalocyanine-silica Nano-materials

This dissertation consists of five chapters, including introduction, synthesis and application of tetra-substituted carboxyl aluminum phthalocyanine (AlC₄Pc)-silica nanoparticles, synthesis and applicantion of tetra-substituted carboxyl iron phthalocyanine(TCFePc)-silica nanoparticles, synthesis and applicantion of multifunctional magnetic silica nanotubes, and the conclusion and prospect of the present research work.In chapter one, the progress and development of nanotechnology was introduced. The fluorescent nanomaterials which can be used as markers were summarized briefly. And how to synthsize and apply the silica nanoparticles was described in details. The research proposal for this dissertation was also presented.In chapter two, the preparation and application of AlC₄Pc-silica nanoparticles were reported. This chapter was divided into two sections. The content of the first section was about using the microemulsion method to synthesize non-covalent fluorescent nanoparticles, AlC₄Pc-silica nanopartices. And the possibility of using the fluorescent nanoparticles as new fluorescent indicator for pH determination was also investigated. In the second section, covalent fluorescent nanoparticles were prepared by controlling the cohydrolysis of AlC₄Pc silylanization precursor and TEOS and APTEOS in W/O microemulsion. A fluoroimmunoassay method using the fluorescent nanoparticles was proposed for the determination of trace amount of IgG.In chapter three, two different methods were used to synthesize the TCFePc catalyst-supported silica nanoparticles. In the first section, by controlling the cohydrolysis of TCFePc silylanization precursor and TEOS in W/O microemulsion, the TCFePc-silica nanoparticles were formed and used to highly sensitive determinate thiamine. In the second section, TCFePc were covalently attached to the surface amino-functionalized magentic silica nanoparticles to form the TCFePc-magnetic SiO₂ nanoparticles, which used to catalyze the degradation reaction of organic pollutants in water. Compared with free TCFePc, the magnetic supported-catalyst has the advantages of ready separation by external magnetic field and can be directly used for the next run.The chapter four was about the preliminary investigation of the preparation and application of the surface-functionalized magnetic silica nanotubes. Combining AlC₄Pc with modified magnetic silica nanotubes which synthesized by alumina template membrane method, the AlC₄Pc-magnetic nanotubes were firstly synthesized and characterized. From the experimental results, the inner- or outer-AlC₄Pc magnetic silica nanotubes had the similar feature with free AlC₄Pc. These results indicated that the amino surface-functionalized magnetic silica nanotubes will be a promising platform for the applications of targeting drug delivery, DNA transfection, selective separation, catalyst carriers and so on.In chapter five, the final part of the dissertation, the prospect of this research was discussed.