| Co3O4纳米阵列电催化膜电极及其处理难降解废水耦合产氢性能研究(英文) |
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| 作者姓名： | 殷昭慧 张琨 马娜 刘晰 尹振 王虹 杨雪 王晔 秦学涛 成丹阳 郑玉梅 王丽丽 李建新 徐宗伟 唐娜 程博闻 肖德泉 马丁 |
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| 作者单位： | 1. Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology;2. State Key Laboratory of Precision Measuring Technology and Instruments, Centre of MicroNano Manufacturing Technology, Tianjin University;3. School of Chemistry and Chemical Engineering, In-situ Center for Physical Science, Shanghai Jiao Tong University;4. Beijing, Synfuels China Technology Co.Ltd.;6. State Key Laboratory of Separation Membranes and Membrane Processes, Separation Membrane Science and Technology International Joint Research Centre, Tiangong University;7. Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University;8. Center for Integrative Materials Discovery, University of New Haven |
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| 基金项目： | supported by the National Natural Science Foundation of China (21872104, 51908408, 21872163, and 22072090)；;the National Key Research and Development Program of China (2017YFB0602200, 2020YFA0211000, and 2020YFA0211003)；;Tianjin Science and Technology Planning Project (21ZYQCSY00050)；;the support from the Natural Science Foundation of Tianjin for Distinguished Young Scholar (20JCJQJC00150)； |
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| 摘 要： | 传统电化学高级氧化技术存在有机物降解效率不高、能耗大的弊端,并且平板式电极表面存在滞止边界层,严重限制了传质过程.本工作中,我们首先通过水热方法将一维Co3O4纳米针状阵列结构原位负载于金属钛膜电极,低压电场下,实现难降解有机物的去除,其中:对于苯酚的去除率可达≥99%,化学需氧量(COD)和总有机碳(TOC)去除率分别为9 9.5%和9 2.5%,电流效率为8 8.7%,能耗仅为0.061 kW h (kg COD)-1. Co3O4纳米针的阵列式膜电极可以提供更多的CoOOH活性位,增强电场强度,而且其穿透式流体模式导致强化对流,可以明显地改善电催化反应过程的传质,因而提高膜电极的催化效率,降低能耗.最后,我们设计了H型电催化膜反应器,耦合阴极的析氢反应,降解有机物的同时制备纯氢,极大地提高了电极和膜反应器的效率.
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