| PbO2电极的制备及电催化氧化降解水中间甲酚 |
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| 引用本文： | 谭向东,韩培威,靳承煜,卫皇瞾,孙承林.PbO2电极的制备及电催化氧化降解水中间甲酚[J].化工环保,2020,40(3):290-296. |
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| 作者姓名： | 谭向东 韩培威 靳承煜 卫皇瞾 孙承林 |
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| 作者单位： | 中国科学院 大连化学物理研究所,辽宁 大连 116023;中国科学院大学,北京 100049,北京石油化工学院 化学工程学院,北京 102617,中国科学院 大连化学物理研究所,辽宁 大连 116023;中国科学院大学,北京 100049,中国科学院 大连化学物理研究所,辽宁 大连 116023,中国科学院 大连化学物理研究所,辽宁 大连 116023 |
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| 基金项目： | 国家自然科学基金项目(51878643);大连化物所科研创新基金项目(DICP ZZBS201614);大连化物所与青岛能源所两所融合基金(DICP&QIBEBT UN201809);大连市支持高层次人才创新创业项目(2018RQ04)。 |
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| 摘 要： | 以钛网为基体,锡锑氧化层为底层,采用电沉积法制备了不同的PbO2电极,探索了制备条件对电极的影响。实验结果表明:在电流密度75 mA/cm^2、电沉积温度85℃、电沉积时间30 min的条件下,制备的电极表面晶粒大小适中并呈现出较好的“金字塔”形貌和结晶度,具有最好的电催化氧化降解效果(间甲酚转化率85.65%、TOC去除率16.51%)和最低的能耗(0.97 kW·h/g,以TOC计),并在重复降解实验中表现出较好的稳定性。自制PbO2电极的各项指标均优于商品化PbO2电极,且TOC去除率是商品化电极的2.9倍,而能耗仅为其1/3.6。
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| 关 键 词： | 钛网基体 电沉积 PBO2电极 电催化氧化 间甲酚 |
Preparation of PbO2 electrode and electrocatalytic oxidation degradation
of m-cresol in water |
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| TAN Xiangdong,HAN Peiwei,JIN Chengyu,WEI Huangzhao,SUN Chenglin.Preparation of PbO2 electrode and electrocatalytic oxidation degradation
of m-cresol in water[J].Environmental Protection of Chemical Industry,2020,40(3):290-296. |
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| Authors: | TAN Xiangdong HAN Peiwei JIN Chengyu WEI Huangzhao SUN Chenglin |
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| Institution: | (Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China;University of Chinese Academy of Sciences,Beijing 100049,China;School of Chemical Engineering,Beijing Institute of Petrochemical Technology,Beijing 102617,China) |
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| Abstract: | The different PbO2 electrodes were prepared by electrodeposition method using titanium mesh as substrate and tinantimony oxide layer as bottom layer.The effects of electrode preparation conditions were explored.The experimental results show that under the conditions of current density 75 mA/cm^2,electrodeposition temperature 85℃and electrodeposition time 30 min,the prepared electrode presents moderate particle size,excellent“pyramid”morphology and crystallinity on the surface,and the best electrocatalytic oxidation effect(m-cresol conversion rate 85.65%,TOC removal rate 16.51%)and the lowest energy consumption(0.97 kW·h/g,TOC),and good stability is shown in the repeated degradation experiments.These performances are all better than those of commercial PbO2 electrode.In addition,the TOC removal rate and energy consumption of the self-made PbO2 electrode is 2.9 and 1/3.6 times of that of the commercial PbO2 electrode. |
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| Keywords: | titanium mesh substrate electrodeposition PbO2 electrode electrocatalytic oxidation m-cresol |
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