Application of TiO<sub>2</sub>/BDD composite electrode in electrochemical oxidation treatment of pharmaceutical wastewater

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

doi:10.13394/j.cnki.jgszz.2018.5.0003

Volume 38 Issue 5

Oct. 2018

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Article Navigation > Diamond & Abrasives Engineering > 2018 > 38(5): 12-16

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. doi: 10.13394/j.cnki.jgszz.2018.5.0003

Citation:

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. doi: 10.13394/j.cnki.jgszz.2018.5.0003

Citation:

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. doi: 10.13394/j.cnki.jgszz.2018.5.0003

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Application of TiO₂/BDD composite electrode in electrochemical oxidation treatment of pharmaceutical wastewater

doi: 10.13394/j.cnki.jgszz.2018.5.0003

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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Rev Recd Date: 2018-09-23

Available Online: 2022-07-10

Abstract

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.
- boron-doped diamond film,
- TiO₂,
- electrochemistry,
- photocatalytic,
- organic wastewater