Ti/SnO_2-Sb电极的制备及降解亚甲基蓝的研究
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摘要
采用高温热氧化法制备了Ti/SnO_2-Sb电极,用扫描电子显微镜(SEM)表征了电极的形貌。以Ti/SnO_2-Sb电极为阳极,钛网为阴极,对亚甲基蓝废水进行电催化氧化降解,研究不同因素对亚甲基蓝脱色率的影响,并分析了亚甲基蓝的降解效果。结果表明,当亚甲基蓝的初始浓度为100mg·L~(-1),电流密度为10mA·cm~(-2),电解质浓度为0.10mol·L~(-1),pH=10时,反应30min,亚甲基蓝的脱色率为98.8%,60min时溶液的COD去除率为72.8%。
The Ti/SnO_2-Sb electrodes were prepared by thermal oxidation and were characterized by SEM. The Ti/SnO_2-Sb electrode was used as anode and titanium mesh plate as the cathode. The main influence factors and degradation effectiveness of methylene blue were discussed in the study.Results showed that when the initial concentration of methylene blue was 100 mg/L, current density was 10 mA/cm~2 and the electrolyte dosage was 0.10 mol/L, pH=10, the decolorization rate of methylene blue was 98.8% when the electrolysis' s time was 30 min. When the methylene blue wastewater was treated for 60 min the removal rate of COD was 72.8%.
The Ti/SnO_2-Sb electrodes were prepared by thermal oxidation and were characterized by SEM. The Ti/SnO_2-Sb electrode was used as anode and titanium mesh plate as the cathode. The main influence factors and degradation effectiveness of methylene blue were discussed in the study.Results showed that when the initial concentration of methylene blue was 100 mg/L, current density was 10 mA/cm~2 and the electrolyte dosage was 0.10 mol/L, pH=10, the decolorization rate of methylene blue was 98.8% when the electrolysis' s time was 30 min. When the methylene blue wastewater was treated for 60 min the removal rate of COD was 72.8%.
引文
[1]Tejado A, Kortaberria G, Labidi J. Isoconversional kinetic analysis of novolac-type lignophenolic resins cure[J].Thermochim Acta., 2008, 471(1/2):80-85.
[2]Fang M, Mishima F, Akiyama Y, et al. Fundamental study on magnetic separation of organic dyes in wastewater[J]. Physica C, 2010, 470(20):1827-1830.
[3]王静,汪恂,朱雷,等.钐、锆共掺杂纳米ZnO的制备及其降解染料废水研究[J].工业安全与环保,2018,44(2):1-6.
[4]Lin H, Niu J F, Ding S Y, et al. Electrochemical degradation of perfluorooctanoic acid by Ti/SnO2-Sb, Ti/SnO2-Sb/PbO2and Ti/SnO2-Sb/MnO2[J].Water Research, 2012, 46(7):2281-2289.
[5]梁吉艳,耿聰,李丹,等.钛基锡锑氧化物电极掺杂改性及应用研究进展[J].稀有金属材料与工程,2016,45(3):810-814.
[6]李明,梁雪梅,潘珍,等.多孔陶瓷粒子电极电催化氧化降解2-氨基吡啶[J].化工进展,2014,33(1):219-223.
[7]孙智权.钛基锡锑氧化物涂层阳极的研究[D].长春:吉林大学,2005.
[8]国家环保局.水和废水监测分析方法[M].北京:中国环境科学出版社,1998:354-356.
[9]魏金枝,刘峻峰,颜婉,等.电催化氧化处理除草剂异噁草酮废水的效能[J].环境工程学报,2014,8(2):587-590.
[10]黄开拓.改性Ti/SnO2-Sb电极制备及其降解水中抗生素研究[D].沈阳:沈阳工业大学,2018.
[11]单凤君,齐国超.电化学阳极氧化条件对多孔硅及其光催化性能的影响研究[J].化工新型材料,2017,45(9):105-107.
[12]胡锋平,王晓淼,刘占孟.PbO2/Ti改性电极电催化氧化酸性品红的试验研究[J].环境科学与技术,2010,33(5):51-54.
[13]吴春笃,蒋志辉,解清杰,等.光磁耦合技术降解亚甲基蓝染料废水[J].江苏大学学报(自然科学版),2014,35(4):488-492.
[14]Wu W Y, Huang Z H, Lim T T. Recent development of mixed metal oxide anodes for electorchemical oxidation of organic pollutants in water[J]. Applied Catalysis Catalysis A:General, 2014, 480:58-78.
[2]Fang M, Mishima F, Akiyama Y, et al. Fundamental study on magnetic separation of organic dyes in wastewater[J]. Physica C, 2010, 470(20):1827-1830.
[3]王静,汪恂,朱雷,等.钐、锆共掺杂纳米ZnO的制备及其降解染料废水研究[J].工业安全与环保,2018,44(2):1-6.
[4]Lin H, Niu J F, Ding S Y, et al. Electrochemical degradation of perfluorooctanoic acid by Ti/SnO2-Sb, Ti/SnO2-Sb/PbO2and Ti/SnO2-Sb/MnO2[J].Water Research, 2012, 46(7):2281-2289.
[5]梁吉艳,耿聰,李丹,等.钛基锡锑氧化物电极掺杂改性及应用研究进展[J].稀有金属材料与工程,2016,45(3):810-814.
[6]李明,梁雪梅,潘珍,等.多孔陶瓷粒子电极电催化氧化降解2-氨基吡啶[J].化工进展,2014,33(1):219-223.
[7]孙智权.钛基锡锑氧化物涂层阳极的研究[D].长春:吉林大学,2005.
[8]国家环保局.水和废水监测分析方法[M].北京:中国环境科学出版社,1998:354-356.
[9]魏金枝,刘峻峰,颜婉,等.电催化氧化处理除草剂异噁草酮废水的效能[J].环境工程学报,2014,8(2):587-590.
[10]黄开拓.改性Ti/SnO2-Sb电极制备及其降解水中抗生素研究[D].沈阳:沈阳工业大学,2018.
[11]单凤君,齐国超.电化学阳极氧化条件对多孔硅及其光催化性能的影响研究[J].化工新型材料,2017,45(9):105-107.
[12]胡锋平,王晓淼,刘占孟.PbO2/Ti改性电极电催化氧化酸性品红的试验研究[J].环境科学与技术,2010,33(5):51-54.
[13]吴春笃,蒋志辉,解清杰,等.光磁耦合技术降解亚甲基蓝染料废水[J].江苏大学学报(自然科学版),2014,35(4):488-492.
[14]Wu W Y, Huang Z H, Lim T T. Recent development of mixed metal oxide anodes for electorchemical oxidation of organic pollutants in water[J]. Applied Catalysis Catalysis A:General, 2014, 480:58-78.