| TiO2/BDD复合电极在电化学氧化处理药厂废水中的应用 |
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| 引用本文： | 赵新阳,李智强,马玉祥,张珂皓,黄金洲,苑鑫杰,徐阳,王海龙,席耀辉,徐帅,赵延军,闫宁,王志强.TiO2/BDD复合电极在电化学氧化处理药厂废水中的应用[J].金刚石与磨料磨具工程,2018,38(5):12-16. |
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| 作者姓名： | 赵新阳 李智强 马玉祥 张珂皓 黄金洲 苑鑫杰 徐阳 王海龙 席耀辉 徐帅 赵延军 闫宁 王志强 |
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| 作者单位： | 1. 郑州大学 材料科学与工程学院, 郑州 450001;2. 郑州磨料磨具磨削研究所有限公司 超硬材料磨具国家重点实验室, 郑州 450001;3. 河南省功能金刚石材料创新中心, 郑州 450001 |
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| 摘 要： | 通过水热法在掺硼金刚石（boron-doped diamond，BDD）薄膜电极表面生长出二氧化钛纳米束，制备出具有光电协同催化功能的TiO2/BDD复合电极。通过电化学工作站表征该电极的电化学性能，并利用该电极对制药废水进行降解实验。研究结果表明:该复合电极具有宽的电化学势窗，酸性、中性和碱性条件下分别达到3 V、4 V和4 V，析氧过电位均达到2 V以上，同时背景电流低，可逆性良好。复合电极对药厂废水的降解具有显著的效果，可以在630 min的时间内，将实验水样的化学需氧量从7339 mg/L降低到19 mg/L，降解率为99.7%。
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| 关 键 词： | 掺硼金刚石薄膜 二氧化钛 电化学 光催化 有机废水 |
Application of TiO2/BDD composite electrode in electrochemical oxidation treatment of pharmaceutical wastewater |
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| ZHAO Xinyang,LI Zhiqiang,MA Yuxiang,ZHANG Kehao,HUANG Jinzhou,YUAN Xinjie,XU Yang,WANG Hailong,XI Yaohui,XU Shuai,ZHAO Yanjun,YAN Ning,WANG Zhiqiang.Application of TiO2/BDD composite electrode in electrochemical oxidation treatment of pharmaceutical wastewater[J].Diamond & Abrasives Engineering,2018,38(5):12-16. |
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| Authors: | ZHAO Xinyang LI Zhiqiang MA Yuxiang ZHANG Kehao HUANG Jinzhou YUAN Xinjie XU Yang WANG Hailong XI Yaohui XU Shuai ZHAO Yanjun YAN Ning WANG Zhiqiang |
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| Affiliation: | 1. College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China;2. State Key Laboratory of Superabrasives, Zhengzhou Research Institute for Abrasives & Grinding Co., Ltd., Zhengzhou 450001, China;3. Henan Province Innovation Center of Functional Diamond Material, Zhengzhou 450001, China |
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| Abstract: | In this paper, nano TiO2 are grown on the surface of boron-doped diamond (BDD) film using a hydrothermal method, thus fabricating a TiO2/BDD composite electrode with photoelectric co-catalysis function. The electrochemical property of the electrode is characterized by a electrochemical workstation, and then the electrodes are used to degrade the pharmaceutical wastewater. Results show that the electrode has a wide electrochemical potential, which is 3 V, 4 V and 4 V in acidic, neutral and alkaline conditions, respectively. It also has an anodic oxidation potential of 2 V with low background current and good reversibility. The composite electrode has remarkable degrading effect on the wastewater by reducing the chemical oxygen demand from 7339 mg/L to 19 mg/L in 630 min, which means a 99.7% reduction. |
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