多孔陶瓷粒子电极电催化氧化降解2-氨基吡啶

化工进展

多孔陶瓷粒子电极电催化氧化降解2-氨基吡啶

李明1，梁雪梅1，潘珍1，殷杰1，孟勇1，2，尹笃林2

1湖南师范大学资源循环综合技术研究中心，湖南长沙 410081；2湖南师范大学化学化工学院，资源精细化及先进材料湖南省高校重点实验室，湖南长沙 410081

出版日期:2014-01-05 发布日期:2014-01-05

Degradation of 2-aminopyridine with porous ceramic particle electrodes by electrocatalytic oxidation

LI Ming1，LIANG Xuemei1，PAN Zhen1，YIN Jie1，MENG Yong1，2，YIN Dulin2

1 Research Center of Resource Recycling Integrated Technology，Hunan Normal University，Changsha 410081，Hunan，China；2Key Laboratory of Resource Fine-Processing and Advanced Materials，Universities of Hunan Province，College of Chemistry and Chemical Engineering，Hunan Normal University，Changsha 410081，Hunan，China

Online:2014-01-05 Published:2014-01-05

摘要/Abstract

摘要： 采用以CuO-ZnO/多孔陶瓷粒子电极构建的三维电催化氧化反应器降解2-氨基吡啶，考察了初始pH值、槽电压、电解质投加量和曝气流速对降解效果的影响和反应的电流效率，并通过检测2-氨基吡啶降解过程中几种含氮产物，分析了2-氨基吡啶的降解过程。结果表明：酸性条件和碱性条件比中性条件更有利于2-氨基吡啶的降解，在初始pH值为8.4、槽电压为15 V、支持电解质用量为30 g/L、曝气流速为40 L/h的条件下，处理150 min，2-氨基吡啶和COD的去除率可分别达到83.98%和74.44%，粒子电极可以显著提高电流效率。2-氨基吡啶降解过程分析表明：在电催化条件下，N2和NO3?-N是2-氨基吡啶主要含氮矿化产物，且2-氨基吡啶的开环转化和矿化可以同步进行。

关键词: 电催化氧化, 多孔陶瓷粒子电极, 2-氨基吡啶

Abstract: The 2-aminopyridine was treated by three-phase electrocatalytic oxidation reactor in which CuO-ZnO/porous ceramic was used as particle electrodes. This paper investigated the effects of operating parameters included the initial pH，cell voltage，amount of electrolyte and aeration intensity values on 2-aminopyridine removal and current efficiency of the reaction. The degradation process of 2-aminopyridine was studied by analysis of some nitrogen-containing products. Acidic and alkaline conditions showed a higher efficiency than the neutral condition for 2-aminopyridine degradation. When the initial pH was at 8.4，the cell voltage was at 15 V，the amount of electrolyte was at 30 g/L and the aeration intensity was at 40L/h，the 2-aminopyridine and COD degradation rate reached 83.98% and 74.44% after 150min.The results also demonstrated that particle electrodes can significantly improve the current efficiency. The analysis results from the degradation process of 2-aminopyridine indicated that N2 and NO3?-N were the main mineralization product of nitrogen，and the destroying of pyridine ring and mineralization can be carried out simultaneously.

Key words: electrocatalytic oxidation, porous ceramic particle electrodes, 2-aminopyridine

李明1，梁雪梅1，潘珍1，殷杰1，孟勇1，2，尹笃林2. 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.

LI Ming1，LIANG Xuemei1，PAN Zhen1，YIN Jie1，MENG Yong1，2，YIN Dulin2. Degradation of 2-aminopyridine with porous ceramic particle electrodes by electrocatalytic oxidation[J]. Chemical Industry and Engineering Progree.

[1]	翟重渊, 赵丹荻, 何亚鹏, 黄惠, 陈步明, 郭忠诚. 掺硼金刚石阳极电催化降解新兴抗生素类污染物研究进展[J]. 化工进展, 2022, 41(12): 6615-6626.
[2]	陈思, 胡腾飞, 于永波, 王冰鑫, 洪俊明, 张倩. 硫掺杂石墨烯电催化降解有机染料甲基橙[J]. 化工进展, 2021, 40(1): 550-558.
[3]	赵媛媛,刘文静,董培,张亮,杨政伟,赵朝成. 聚苯胺中间层改性Ti/PbO₂电极的制备及其降解性能[J]. 化工进展, 2019, 38(12): 5478-5486.
[4]	王冰鑫,于永波,黄湾,洪俊明,张倩. 硫掺杂石墨烯电催化降解偶氮染料RBK5[J]. 化工进展, 2019, 38(12): 5471-5477.
[5]	李明, 潘珍, 梁雪梅, 赵艳娇, 邱野, 孟勇, 尹笃林. 氨氮与2-氨基吡啶在三维电催化氧化降解中的竞争[J]. 化工进展, 2015, 34(1): 273-277.
[6]	肖俊霞；胡记杰；阎虹；韦朝海. 光电催化氧化技术中光电反应器的研究与发展 [J]. 化工进展, 2007, 26(3): 331-.