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张坤, 肖书虎, 宋铁红, 胡欣琪, 曲宏斌, 张临绒. TiO2纳米管电极光电催化降解四环素[J]. 环境化学, 2016, 35(7): 1438-1444. doi: 10.7524/j.issn.0254-6108.2016.07.2015112001
引用本文: 张坤, 肖书虎, 宋铁红, 胡欣琪, 曲宏斌, 张临绒. TiO2纳米管电极光电催化降解四环素[J]. 环境化学, 2016, 35(7): 1438-1444. doi: 10.7524/j.issn.0254-6108.2016.07.2015112001
shu
ZHANG Kun, XIAO Shuhu, SONG Tiehong, HU Xinqi, QU Hongbin, ZHANG Linrong. Photocatalytic degradation of tetracycline by TiO2 nanotubes electrode[J]. Environmental Chemistry, 2016, 35(7): 1438-1444. doi: 10.7524/j.issn.0254-6108.2016.07.2015112001
Citation: ZHANG Kun, XIAO Shuhu, SONG Tiehong, HU Xinqi, QU Hongbin, ZHANG Linrong. Photocatalytic degradation of tetracycline by TiO2 nanotubes electrode[J]. Environmental Chemistry, 2016, 35(7): 1438-1444. doi: 10.7524/j.issn.0254-6108.2016.07.2015112001
shu

TiO2纳米管电极光电催化降解四环素

  • 1.

    中国环境科学研究院城市水环境科技创新基地, 北京, 100012;

  • 2.

    吉林建筑大学市政与环境工程学院, 长春, 130118

  • 基金项目:

    国家自然科学基金（21107103，21277134）资助.

Photocatalytic degradation of tetracycline by TiO2 nanotubes electrode

  • 1.

    Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China;

  • 2.

    Institute of Municipal and Environment Engineering, Jilin Jianzhu University, Changchun, 130118, China

  • Fund Project: Supported by the National Natural Science Foundation of China (21107103, 21277134).

  • 摘要: 采用电化学阳极氧化的方法，分别以HF酸水溶液和含NH4F的丙三醇溶液为电解液，制备出高度有序的TiO2纳米管电极.扫描电镜结果表明，TiO2纳米管生长形貌良好，其中有机电解质溶液中制备的TiO2纳米管管长为3 μm，而水溶液中制备的TiO2纳米管长度仅为300 nm.TiO2纳米管电极经450℃热处理后，表现出明显的锐钛型结构.两种TiO2纳米管电极均具有较好的光电催化活性，在偏压为4 V时，光电流分别为1.37 mA·cm-2和 0.83 mA·cm-2，其中管长3μm电极在180 min内对50 mg·L-1四环素TOC的去除效果约为93%.该电极具有较高的稳定性，重复使用5次，光电催化过程对四环素废水均具有较高的降解效果.在180 min内，四环素的降解率均保持在92%±1%，可重复使用.
    Abstract: By means of anodic oxidation, highly ordered TiO2 nanotube array electrodes were prepared in the electrolytes, respectively with HF acid solution and NH4F glycerol solution. Scanning electron microscopy (SEM) results showed that TiO2 nanotube arrays were of uniform morphology. The length of TiO2 nanotube arrays prepared in organic electrolyte was 3 μm, while the length prepared in aqueous solution was 300 nm. XRD patterns showed obvious peaks of anatase after heat treating at 450℃. TiO2 nanotube array electrodes also had good photoelectrocatalytic activities. At a bias potential of 4 V, the photocurrents were 1.37 mA·cm-2 and 0.83 mA·cm-2, respectively. By using the 3 μm electrode, the removal efficiency of 50 mg·L-1 tetracycline reached 93% within 180 min. The electrodes were highly stable after 5 repeated tests, and the degraclation rate of tetracycline was 92%±1%.
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  • 收稿日期:  2015-11-20
  • 刊出日期:  2016-07-15
张坤, 肖书虎, 宋铁红, 胡欣琪, 曲宏斌, 张临绒. TiO2纳米管电极光电催化降解四环素[J]. 环境化学, 2016, 35(7): 1438-1444. doi: 10.7524/j.issn.0254-6108.2016.07.2015112001
引用本文: 张坤, 肖书虎, 宋铁红, 胡欣琪, 曲宏斌, 张临绒. TiO2纳米管电极光电催化降解四环素[J]. 环境化学, 2016, 35(7): 1438-1444. doi: 10.7524/j.issn.0254-6108.2016.07.2015112001
shu
ZHANG Kun, XIAO Shuhu, SONG Tiehong, HU Xinqi, QU Hongbin, ZHANG Linrong. Photocatalytic degradation of tetracycline by TiO2 nanotubes electrode[J]. Environmental Chemistry, 2016, 35(7): 1438-1444. doi: 10.7524/j.issn.0254-6108.2016.07.2015112001
Citation: ZHANG Kun, XIAO Shuhu, SONG Tiehong, HU Xinqi, QU Hongbin, ZHANG Linrong. Photocatalytic degradation of tetracycline by TiO2 nanotubes electrode[J]. Environmental Chemistry, 2016, 35(7): 1438-1444. doi: 10.7524/j.issn.0254-6108.2016.07.2015112001
shu

TiO2纳米管电极光电催化降解四环素

  • 1.  中国环境科学研究院城市水环境科技创新基地, 北京, 100012;
  • 2.  吉林建筑大学市政与环境工程学院, 长春, 130118
  • 收稿日期:  2015-11-20
基金项目:

国家自然科学基金（21107103，21277134）资助.

摘要: 采用电化学阳极氧化的方法，分别以HF酸水溶液和含NH4F的丙三醇溶液为电解液，制备出高度有序的TiO2纳米管电极.扫描电镜结果表明，TiO2纳米管生长形貌良好，其中有机电解质溶液中制备的TiO2纳米管管长为3 μm，而水溶液中制备的TiO2纳米管长度仅为300 nm.TiO2纳米管电极经450℃热处理后，表现出明显的锐钛型结构.两种TiO2纳米管电极均具有较好的光电催化活性，在偏压为4 V时，光电流分别为1.37 mA·cm-2和 0.83 mA·cm-2，其中管长3μm电极在180 min内对50 mg·L-1四环素TOC的去除效果约为93%.该电极具有较高的稳定性，重复使用5次，光电催化过程对四环素废水均具有较高的降解效果.在180 min内，四环素的降解率均保持在92%±1%，可重复使用.

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