.Modification of the diamond film electrode with photochemistry for phenol degradation[J].Optoelectronics Letters,2010,6(4):253-255 |
Modification of the diamond film electrode with photochemistry for phenol degradation |
安云玲 |
Tianjin Key Laboratory of Film Electronics & Communication Devices,Department of Electronics Information Engineering, Tianjin University of Technology; |
Abstract: |
The degradation of phenols has become urgent issues. In this paper, the diamond film electrode modified by photochemistry
is chosen as the research object for phenol degradation. The boron-doped diamond films, which are modified and unmodified,
are characterized by the X-ray photoelectron spectroscopy (XPS). Cyclic voltammograms are used to test the electrochemical
window. It is found that the current value of tantalum/boron-doped diamond (Ta/BDD) electrode with amino modification increases
two orders of magnitude in degrading the nitro-phenol, when the amino-modified rate is only 1.9%. The current value is enhanced
from −4.0 × 10−4A-4.0 × 10−4 A to −4.0 × 10−2A-4.0 × 10−2A. In addition, in order to understand the excellent characteristics of Ta/BDD electrode modified by photochemistry for phenol
degradation, the efficiency of degradation is also discussed. |
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