Modification of the diamond film electrode with photochemistry for phenol degradation

An Yun-ling; Chang Ming; Wen Gao-jie; Xu Meng; Qiu Chen

doi:10.1007/s11801-010-0022-7

Optoelectronics Letters ›› 2010, Vol. 6 ›› Issue (4) : 253-255. DOI: 10.1007/s11801-010-0022-7

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Modification of the diamond film electrode with photochemistry for phenol degradation

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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.

Keywords

Cyclic Voltammograms / Diamond Film / Phenol Degradation / Electrochemical Window / Wide Electrochemical Window

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An Yun-ling, Chang Ming, Wen Gao-jie, Xu Meng, Qiu Chen. Modification of the diamond film electrode with photochemistry for phenol degradation. Optoelectronics Letters, 2010, 6(4): 253‒255 https://doi.org/10.1007/s11801-010-0022-7

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This work has been supported by the National Natural Science Foundation of China (No.50972105), and Tianjin Natural Science Foundation (No. 09JCZDJC16500).