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新型颗粒电极γ-Al2O3@MIL-101(Fe)对水中罗丹明B的电催化氧化

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刘艳青, 张立国, 刘蕾, 洪旭佳, 李碧清, 吴宏海, 梁晓滢, 胡倩筠, 赖学君. 新型颗粒电极γ-Al2O3@MIL-101(Fe)对水中罗丹明B的电催化氧化[J]. 环境化学, 2018, 37(11): 2532-2539. doi: 10.7524/j.issn.0254-6108.2018010101
引用本文: 刘艳青, 张立国, 刘蕾, 洪旭佳, 李碧清, 吴宏海, 梁晓滢, 胡倩筠, 赖学君. 新型颗粒电极γ-Al2O3@MIL-101(Fe)对水中罗丹明B的电催化氧化[J]. 环境化学, 2018, 37(11): 2532-2539. doi: 10.7524/j.issn.0254-6108.2018010101
shu
LIU Yanqing, ZHANG Liguo, LIU Lei, HONG Xujia, LI Biqing, WU Honghai, LIANG Xiaoying, HU Qianjun, LAI Xuejun. Electrocatalytic oxidation of Rhodamine B on a novel particle electrode of γ-Al2O3@MIL-101(Fe)[J]. Environmental Chemistry, 2018, 37(11): 2532-2539. doi: 10.7524/j.issn.0254-6108.2018010101
Citation: LIU Yanqing, ZHANG Liguo, LIU Lei, HONG Xujia, LI Biqing, WU Honghai, LIANG Xiaoying, HU Qianjun, LAI Xuejun. Electrocatalytic oxidation of Rhodamine B on a novel particle electrode of γ-Al2O3@MIL-101(Fe)[J]. Environmental Chemistry, 2018, 37(11): 2532-2539. doi: 10.7524/j.issn.0254-6108.2018010101
shu

新型颗粒电极γ-Al2O3@MIL-101(Fe)对水中罗丹明B的电催化氧化

  • 1.

    华南师范大学化学与环境学院, 广州, 510006;

  • 2.

    东莞理工学院生态环境与建筑工程学院, 东莞, 523808;

  • 3.

    广州市净水有限公司, 广州, 510655

  • 基金项目:

    国家自然科学基金（41372050），广东省自然科学基金（2016A030313432），广东省高校优秀青年创新人才培养计划资助项目（2012LYM_0050）和广东高校化工清洁生产与绿色化学品工程技术开发中心项目（201405）资助.

Electrocatalytic oxidation of Rhodamine B on a novel particle electrode of γ-Al2O3@MIL-101(Fe)

  • 1.

    School of Chemistry and Environment. South China Normal University, Guangzhou, 510006, China;

  • 2.

    School of Environmentand Civil Engineering, DongGuan University of Technology, Dongguan, 523808, China;

  • 3.

    Guangzhou Sewage Purification Co. Ltd., Guangzhou, 510655, China

  • Fund Project: Supported by National Natural Science Foundation of China (41372050), Natural Science Foundation of Guangdong Province (2016A030313432), Outstanding Young Innovative Talent Training Plan of Guangdong Universities (2012LYM_0050) and Opening Fund of Engineering Research Center for Chemical Industry Cleaner Production of Guangdong Universities (201405).

  • 摘要: 以γ-Al2O3为基体，采用水热合成的方法制备新型的颗粒电极γ-Al2O3@MIL-101（Fe），通过XRD、FT-IR、SEM、EDS等方法对颗粒电极进行性质表征.以Ti极板作为阴极，Ti-RuO2作为阳极，采用三维电催化氧化体系处理罗丹明B （RhB）模拟废水.以无水硫酸钠为支持电解质，对各影响因素进行了优化实验研究，同时对颗粒电极电催化降解罗丹明B的反应进行了动力学模拟分析，并进行颗粒电极的重复利用实验，以探究制备的新型颗粒电极γ-Al2O3@MIL-101（Fe）对水中罗丹明B的电催化氧化性能.实验结果表明制备的新型颗粒电极γ-Al2O3@MIL-101（Fe）对罗丹明B的电催化降解反应属于一级动力学反应，反应速率常数k为30.1×10-2 min-1，是传统颗粒电极γ-Al2O3的15倍；在颗粒电极投加量为33.3 g·L-1、电压20 V、电解质浓度8 g·L-1、pH 2时，25 min后罗丹明B的去除率高达97%；同样条件下，γ-Al2O3电催化处理染料水时，1 h后罗丹明B的降解率仅为56%；新型颗粒电极γ-Al2O3@MIL-101（Fe）在电催化氧化罗丹明B的反应中具有良好的重复利用性能，经过5次反复利用，其去除率仍能保持在85%左右.
    Abstract: A novel particle-electrode of γ-Al2O3@MIL-101(Fe) was prepared by hydrothermal method based on the carrier of γ-Al2O3. The properties of the particle-electrode γ-Al2O3@MIL-101(Fe) were characterized by XRD, FT-IR, SEM and EDS. Using Ti electrode and Ti/RuO2 electrode as the negative and positive electrode respectively, the simulated Rhodamine B (RhB) wastewater was treated in a three-dimensional electrocatalytic system. Optimization of experimental parameter was carried out and the kinetic of RhB degradation was investigated. The reuse test on the degradation of RhB was also performed. The results showed that the electrocatalytic degradation of RhB under the optimized conditions could be fitted with pseudo-first-order kinetic model, and the observed rate constant (kobs) of the three-dimensional electrocatalytic system with a particle electrode γ-Al2O3@MIL-101(Fe) (30.1×10-2 min-1) was about 15 times higher than that of the system with traditional particle electrode γ-Al2O3.The RhB removal rate in the novel system reached 97% in 25 min under the optimum condition of the particle electrodes dosage of 33.3 g·L-1, cell voltage of 20 V,electrolyte concentration of 8 g·L-1 and pH of 2. Correspondingly, the RhB removal rate in the traditional system only reached 56% in 60 min under the same condition. The novel particle electrode of γ-Al2O3@MIL-101(Fe) displayed good reusability for the removal of RhB, and the removal rate of RhB in the reaction system remained about 85% after five cycles.
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  • 收稿日期:  2018-01-01
  • 刊出日期:  2018-11-15
刘艳青, 张立国, 刘蕾, 洪旭佳, 李碧清, 吴宏海, 梁晓滢, 胡倩筠, 赖学君. 新型颗粒电极γ-Al2O3@MIL-101(Fe)对水中罗丹明B的电催化氧化[J]. 环境化学, 2018, 37(11): 2532-2539. doi: 10.7524/j.issn.0254-6108.2018010101
引用本文: 刘艳青, 张立国, 刘蕾, 洪旭佳, 李碧清, 吴宏海, 梁晓滢, 胡倩筠, 赖学君. 新型颗粒电极γ-Al2O3@MIL-101(Fe)对水中罗丹明B的电催化氧化[J]. 环境化学, 2018, 37(11): 2532-2539. doi: 10.7524/j.issn.0254-6108.2018010101
shu
LIU Yanqing, ZHANG Liguo, LIU Lei, HONG Xujia, LI Biqing, WU Honghai, LIANG Xiaoying, HU Qianjun, LAI Xuejun. Electrocatalytic oxidation of Rhodamine B on a novel particle electrode of γ-Al2O3@MIL-101(Fe)[J]. Environmental Chemistry, 2018, 37(11): 2532-2539. doi: 10.7524/j.issn.0254-6108.2018010101
Citation: LIU Yanqing, ZHANG Liguo, LIU Lei, HONG Xujia, LI Biqing, WU Honghai, LIANG Xiaoying, HU Qianjun, LAI Xuejun. Electrocatalytic oxidation of Rhodamine B on a novel particle electrode of γ-Al2O3@MIL-101(Fe)[J]. Environmental Chemistry, 2018, 37(11): 2532-2539. doi: 10.7524/j.issn.0254-6108.2018010101
shu

新型颗粒电极γ-Al2O3@MIL-101(Fe)对水中罗丹明B的电催化氧化

  • 1.  华南师范大学化学与环境学院, 广州, 510006;
  • 2.  东莞理工学院生态环境与建筑工程学院, 东莞, 523808;
  • 3.  广州市净水有限公司, 广州, 510655
  • 收稿日期:  2018-01-01
基金项目:

国家自然科学基金（41372050），广东省自然科学基金（2016A030313432），广东省高校优秀青年创新人才培养计划资助项目（2012LYM_0050）和广东高校化工清洁生产与绿色化学品工程技术开发中心项目（201405）资助.

摘要: 以γ-Al2O3为基体，采用水热合成的方法制备新型的颗粒电极γ-Al2O3@MIL-101（Fe），通过XRD、FT-IR、SEM、EDS等方法对颗粒电极进行性质表征.以Ti极板作为阴极，Ti-RuO2作为阳极，采用三维电催化氧化体系处理罗丹明B （RhB）模拟废水.以无水硫酸钠为支持电解质，对各影响因素进行了优化实验研究，同时对颗粒电极电催化降解罗丹明B的反应进行了动力学模拟分析，并进行颗粒电极的重复利用实验，以探究制备的新型颗粒电极γ-Al2O3@MIL-101（Fe）对水中罗丹明B的电催化氧化性能.实验结果表明制备的新型颗粒电极γ-Al2O3@MIL-101（Fe）对罗丹明B的电催化降解反应属于一级动力学反应，反应速率常数k为30.1×10-2 min-1，是传统颗粒电极γ-Al2O3的15倍；在颗粒电极投加量为33.3 g·L-1、电压20 V、电解质浓度8 g·L-1、pH 2时，25 min后罗丹明B的去除率高达97%；同样条件下，γ-Al2O3电催化处理染料水时，1 h后罗丹明B的降解率仅为56%；新型颗粒电极γ-Al2O3@MIL-101（Fe）在电催化氧化罗丹明B的反应中具有良好的重复利用性能，经过5次反复利用，其去除率仍能保持在85%左右.

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