| The TiC>2 is a kind of important high performance and high function materials with outstanding characteristics as semiconductor in electricity, optics and photochemistry. In various areas, TiC>2 has been applied as a kind of important function material for long. In this thesis, Ti/TiC>2 thin film electrode was prepared by the method of anodic oxidation, and was used to measure organic compounds in aqueous solution.CHI660b type chemistry workstation was used for measuring, Ti/TiC^ thin film electrode was used as working electrode. Organic compound (methanol, phenol, formic acid and potassium acid phthalate) solutions were electrolyzed by chronocoulometry method, and anodic oxidation currents were derived from electrolysis. Effects of solution concentrations, soluble electrolytes, pH and electrolysis voltage on anodic oxidation currents were studied. The results showed that anodic oxidation current linearly increased with organic compound concentration, as well as with voltage, but decreased with pH. Electrolytes have no effects on oxidation current.Each run of measurement just took 30s. It is obvious that the electrochemical method could directly and quickly measure solution concentration of organic compounds with no secondary pollution. The energy demand is low while the efficiency is high. The present method shows a promising future in environmental monitoring. |
PDF Full Text Request