| Anodic oxidation of salicylic acid at Ta/BDD electrode |
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| 作者姓名： | ZHANG Juan CHEN Xue-ming YAO Pei-dong CHEN Guo-hua |
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| 作者单位： | [1]Environmental Engineering Department, Zhejiang University, Hangzhou 310027, China [2]Chemical Engineering Department, The Hong Kong Univet＇sity of Science and Technology. Clear Water Ba~ Kowloon Hong Kong, China |
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| 摘 要： | Boron-doped diamond （BDD） film electrodes using Ta as substrates were employed for anodic oxidation of salicylic acid （SA）. The effects of operational variables including initial concentration, current density, temperature and pH were examined. The results showed that BDD films deposited on the Ta substrates had high electrocatalytic activity for SA degradation. There was little effect ofpH on SA degradation. The current efficiency （CE） ,aas fbund to be dependent mainly on the initial SA concentration, current density and temperature. Chemical oxygen demand （COD） was reduced from 830 mg/L to 42 mg/L under a current density of200A/m^2 at 30℃.
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| 关 键 词： | 电催化活性 钽/硼掺杂金刚石电极 水杨酸 阳极氧化 电流效率 |
| 收稿时间： | 23 May 2007 |
| 修稿时间： | 2007-05-232007-06-15 |
Anodic oxidation of salicylic acid at Ta/BDD electrode |
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| ZHANG Juan CHEN Xue-ming YAO Pei-dong CHEN Guo-hua.Anodic oxidation of salicylic acid at Ta/BDD electrode[J].Journal of Zhejiang University Science,2007,8(9):1457-1461. |
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| Authors: | Zhang Juan Chen Xue-ming Yao Pei-dong Chen Guo-hua |
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| Institution: | (1) Environmental Engineering Department, Zhejiang University, Hangzhou, 310027, China;(2) Chemical Engineering Department, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China |
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| Abstract: | Boron-doped diamond (BDD) film electrodes using Ta as substrates were employed for anodic oxidation of salicylic acid (SA).
The effects of operational variables including initial concentration, current density, temperature and pH were examined. The
results showed that BDD films deposited on the Ta substrates had high electrocatalytic activity for SA degradation. There
was little effect of pH on SA degradation. The current efficiency (CE) was found to be dependent mainly on the initial SA
concentration, current density and temperature. Chemical oxygen demand (COD) was reduced from 830 mg/L to 42 mg/L under a
current density of 200 A/m2 at 30 °C.
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| Keywords: | Salicylic acid (SA) Anodic oxidation Ta/BDD Current efficiency (CE) Electrocatalytic activity |
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