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Ti/Sb-SnO2功能电极的制备及电化学处理废水的性能

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陈洁, 尚鸿艳, 柴青立, 朱清, 徐玫瑰, 涂洛, 周幸福. Ti/Sb-SnO2功能电极的制备及电化学处理废水的性能[J]. 环境化学, 2011, 30(8): 1405-1410.
引用本文: 陈洁, 尚鸿艳, 柴青立, 朱清, 徐玫瑰, 涂洛, 周幸福. Ti/Sb-SnO2功能电极的制备及电化学处理废水的性能[J]. 环境化学, 2011, 30(8): 1405-1410.
shu
CHEN Jie, SHANG Hongyan, CHAI Qingli, ZHU Qing, XU Meigui, TU Luo, ZHOU Xingfu. PREPARATION AND ELECTROCHEMICAL WASTEWATER DEGRADATION PERFORMANCE OF Ti/Sb-SnO2 ELECTRODE[J]. Environmental Chemistry, 2011, 30(8): 1405-1410.
Citation: CHEN Jie, SHANG Hongyan, CHAI Qingli, ZHU Qing, XU Meigui, TU Luo, ZHOU Xingfu. PREPARATION AND ELECTROCHEMICAL WASTEWATER DEGRADATION PERFORMANCE OF Ti/Sb-SnO2 ELECTRODE[J]. Environmental Chemistry, 2011, 30(8): 1405-1410.
shu

Ti/Sb-SnO2功能电极的制备及电化学处理废水的性能

  • 1.

    南京工业大学化学化工学院,材料化学工程国家重点实验室, 南京, 210009

  • 基金项目:

    国家自然科学基金重点项目(20636020)

    江苏省科技支撑计划项目(BE2009679)

    江苏省自然科学研究基金(08KJB150009,10KJB150006)资助.

PREPARATION AND ELECTROCHEMICAL WASTEWATER DEGRADATION PERFORMANCE OF Ti/Sb-SnO2 ELECTRODE

  • 1.

    College of Chemistry and Chemical Engineering, State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing, 210009, China

  • Fund Project:

  • 摘要: 采用热分解法制备了Ti/Sb-SnO2电极,并用XRD、SEM对电极涂层进行表征.研究了涂层次数对于析氧过电位的影响,应用阳极快速寿命测试法测试了Ti/Sb-SnO2电极的使用寿命,通过极化曲线考察了电极的析氧过电位.采用该电极对甲基橙模拟废水进行了电化学降解实验,并考察此电极处理实际废水的效果.研究表明,随着涂层次数的增加,其析氧过电位增加,当涂层次数达到15次时,析氧过电位高达1.8 V(vs SCE),有效抑制了阳极析氧副反应的发生.以Ti/Sb-SnO2电极作为阳极,对甲基橙模拟废水电解10 min后,脱色率接近100%,甲基橙模拟废水降解60 min后,TOC去除率才能达到86.2%,TOC去除率明显滞后于脱色率.
    Abstract: Ti/Sb-SnO2 electrodes were successfully fabricated by thermal decomposition and their electrochemical properties were investigated. The Ti/Sb-SnO2 electrode was characterized by XRD and SEM. The service life and the oxygen evolution potential were also investigated by the accelerated test and polarization curve measurement. Study shows the oxygen evolution potential increased with the increase of electrode coating numbers. The optimal number of coating is 15 times, and the oxygen evolution potential reached 1.8 V (vs SCE). The obtained Ti/Sb-SnO2 electrode was used in the electrochemical degradation of methyl orange (MO) in water. Our study shows the electrochemical potential, electrolysis time and the initial concentration of MO have great effect on the electrochemical degradation of MO. The decolorization rate reached 100% after 10 min of electrolysis, while only 86.2% TOC removal was achieved for 60 min electrolysis.
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  • [1] 赵泉林,叶正芳,王中友,等.TNT废水处理研究进展[J]. 环境化学,2010,29(5):796-800
    [2] 杨慧敏,何绪文,何咏,等.电化学氧化法处理微污染水中的氮[J]. 环境化学,2010,29(3):491-495
    [3] Mussy J P G, Macpherson J V, Delplancke J L,et al. Characterisation and behaviour of Ti/TiO2/noble metal anodes [J].Electrochim Acta, 2003, 48(9):1131-1141
    [4] Dumas C, Basseguy R, Bergel A, et al. DSA to grow electrochemically active biofilms of geobacter sulfurreducens [J].Electrochim Acta, 2008, 53(7):3200-3209
    [5] Kim S S and Kim S D. Application of PVD coatings for developing a DSA-type anode [J]. Thin Solid Films, 2008, 516(11):3673-3679
    [6] 张乃东,李宁,彭永臻.电镀烧结法制备Ti/SnO2-Sb2O4电极的研究[J]. 无机化学学报,2002,18(11)∶1173-1176
    [7] Watts R J, Wyeth M S, Finn D D, et al. Optimization of Ti/SnO2-Sb2O5 anode preparation for electrochemical oxidation of organic contaminants in water and wastewater [J]. J Appl Electrochem, 2008, 38(1):31-37
    [8] Feng Y J, Cui Y H, Logan B, et al. Performance of Gd-doped Ti-based Sb-SnO2 anodes for electrochemical destruction of phenol [J].Chemosphere, 2008, 70(9):1629-1636
    [9] Zhu K J, Zhang W C, Wang H F, et al. Electro-catalytic degradation of phenol organics with SnO2-Sb2O3/Ti electrodes [J].Clean, 2008, 36(1):97-102
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  • 收稿日期:  2010-09-07
陈洁, 尚鸿艳, 柴青立, 朱清, 徐玫瑰, 涂洛, 周幸福. Ti/Sb-SnO2功能电极的制备及电化学处理废水的性能[J]. 环境化学, 2011, 30(8): 1405-1410.
引用本文: 陈洁, 尚鸿艳, 柴青立, 朱清, 徐玫瑰, 涂洛, 周幸福. Ti/Sb-SnO2功能电极的制备及电化学处理废水的性能[J]. 环境化学, 2011, 30(8): 1405-1410.
shu
CHEN Jie, SHANG Hongyan, CHAI Qingli, ZHU Qing, XU Meigui, TU Luo, ZHOU Xingfu. PREPARATION AND ELECTROCHEMICAL WASTEWATER DEGRADATION PERFORMANCE OF Ti/Sb-SnO2 ELECTRODE[J]. Environmental Chemistry, 2011, 30(8): 1405-1410.
Citation: CHEN Jie, SHANG Hongyan, CHAI Qingli, ZHU Qing, XU Meigui, TU Luo, ZHOU Xingfu. PREPARATION AND ELECTROCHEMICAL WASTEWATER DEGRADATION PERFORMANCE OF Ti/Sb-SnO2 ELECTRODE[J]. Environmental Chemistry, 2011, 30(8): 1405-1410.
shu

Ti/Sb-SnO2功能电极的制备及电化学处理废水的性能

  • 1. 南京工业大学化学化工学院,材料化学工程国家重点实验室, 南京, 210009
  • 收稿日期:  2010-09-07
基金项目:

国家自然科学基金重点项目(20636020)

江苏省科技支撑计划项目(BE2009679)

江苏省自然科学研究基金(08KJB150009,10KJB150006)资助.

摘要: 采用热分解法制备了Ti/Sb-SnO2电极,并用XRD、SEM对电极涂层进行表征.研究了涂层次数对于析氧过电位的影响,应用阳极快速寿命测试法测试了Ti/Sb-SnO2电极的使用寿命,通过极化曲线考察了电极的析氧过电位.采用该电极对甲基橙模拟废水进行了电化学降解实验,并考察此电极处理实际废水的效果.研究表明,随着涂层次数的增加,其析氧过电位增加,当涂层次数达到15次时,析氧过电位高达1.8 V(vs SCE),有效抑制了阳极析氧副反应的发生.以Ti/Sb-SnO2电极作为阳极,对甲基橙模拟废水电解10 min后,脱色率接近100%,甲基橙模拟废水降解60 min后,TOC去除率才能达到86.2%,TOC去除率明显滞后于脱色率.

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