Abstract
Boron-doped diamond (BDD) is one of the most promising advanced electrode materials in the field of electroanalysis, because it has a very low background current and noise signals, a wide potential window, a high mechanical strength and corrosion resistance (even being anodic polarized in acidic solutions) and a high resistance to deactivation by impurities and long term response stability. These superior characteristics benefit its practical application, specially electrochemical reactions occurring at all extreme environments, when the BDD film was used directly as an electrode or selected as a substrate for combining with other materials. In particular, boron doping makes it a p-type semiconductor as well as conductive at room temperature. Owing to the excellent photocatalytic activity and superior oxidation ability, TiO2 photocatalyst has been applied to the fields of water purification/sterilization, wastewater treatment and environmental detection, since Fujishima and Honda discovered the photocatalytic splitting of water on TiO2 electrodes. A main attraction of such photocatalyst is due to Photoelectrochemical Properties and Its Application of Nano-TiO2/ Boron-doped Diamond Heterojunction Electrode Material
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