| The nanomaterials have widely been used in diversified fields due to their unique optical, electrical and biological properties. Among nanomaterials, the copper telluride with excellent photoelectric property and ion conductivity, has potential applications in super ion conductors, solar cells, photoelectric detectors, light-heat conversion and data storage capacity. In addition, the organic metal composites with photoelectric property could combine the inorganic advantages (good stability and easy processing) with the organic advantages (fast photoelectric response and easy tailor) and thus have broad application prospect. In this thesis, the copper telluride nanomaterials (Cu2Te) and the organic metal composite (RuL2, nano-complex) were prepared, and their electrochemistry and electrochemiluminescence properties were studied. In addition, the photoelectric property of the Ru organic complex was explored in a home-made high-frequency alternating voltage/electric field. Main work as follows:1.Preparation and electrochemical property of Cu2Te nanorodsFirst, the Te nanorods were prepared in HCONH2alkaline and hydrothermal environment by using NaTeO4as tellurium source. Then, the Cu2Te nanorods with hexagonal crystal were prepared through reacting Te nanorods with OuSO4by means of both the complexation of high-concentration aqueous ammonia and the reduction of hydrazine hydrate under stirring at room temperature. The products as-prepared were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The morphology of the product was controlled by adjusting reaction time, reaction temperature and molar ratio reactants, and the formation mechanism of the Cu2Te nanorods was speculated. The electrochemical property of the Cu2Te nanorods was studied by cyclic voltammetry in different media based on a carbon paste electrode that was made up of Cu2Te nanorods and graphite. The results show that the electrochemical property of the nanorods is different from that of Cu2Te bulk. 2. The preparation and electrochemiluminescence analysis of RuLa nanocompositeThe RuL2complex with stable nano-structure was prepared by L ligand and ruthenium (Ⅱ) salt-(3-terpyridine), and stable graphene oxide was prepared by Hummers method. The products as-prepared were characterized by SEM, XRD, ultraviolet absorption (UV), transmission electron microscopy (TEM) and H nuclear magnetic resonance (H-NMR). In order to prepare stable electrochemiluminescence (ECL) biosensor, the RuL2nanocomposite was first loaded on the surface of glass carbon electrode and then the graphene oxide reduced was covered off. The effect factors on ECL behavior, such as solution acidity, reductant and reducing time, were explored. The concentration of dopamine molecules was detected by the ECL biosensor, and the significance result was obtained.3. Probe for the luminescence property of Ruthenium complex in high-frequency alternating voltage/electric fieldA high-frequency alternating voltage/electric field (HFVF) device was assembled as follows. First, taking the ATTEN as trigger source and0-1000V programming adjustable power as exciting source, the signal device was structured by connecting two sources with self-made circuit board. Then, the HFVF device with which the voltage/electric field in0～200V could be adjusted, was completed by connecting the signal device with DSO-2100virtual oscilloscope. In addition, the new Ru(L1)2、and Ru(L2)2complexes were synthesized. The luminescence behavior of the complexes as-synthesized was studied by the HFVF device. Significantly, this test provides a novelty path in expanding the exciting mode for fluorescence and two-photon materials. |
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