碳改性Ti<sub>4</sub>O<sub>7</sub>阳极电极在流通式体系中高效降解苯酚

曹婷; 朱敬宇; 张一梅

doi:10.13205/j.hjgc.202501007

碳改性Ti₄O₇阳极电极在流通式体系中高效降解苯酚

doi: 10.13205/j.hjgc.202501007

曹婷¹,
朱敬宇¹,
张一梅^1,2, ,

1. 华北电力大学环境科学与工程学院, 北京 102206;
2. 华北电力大学苏州研究院, 江苏苏州 215000

基金项目:

中央高校优秀青年团队项目(JB2022004)

详细信息

作者简介:
曹婷(1997-),女,硕士研究生,主要研究方向为水处理技术。1456143449@qq.com

通讯作者:
张一梅(1982-),女,教授,主要研究方向为环境风险评价和环境修复技术。zhangym@ncepu.edu.cn

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出版历程
- 收稿日期: 2024-03-15
- 录用日期: 2024-06-12
- 修回日期: 2024-06-03
- 网络出版日期: 2025-03-21
- 刊出日期: 2025-03-21

Carbon modified Ti₄O₇ anode electrode in a flow-through system for efficient phenol degradation

CAO Ting¹,
ZHU Jingyu¹,
ZHANG Yimei^{1,2
, ,}

1. College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China;
2. Suzhou Research Institute of North China Electric Power University, Suzhou 215000, China

摘要

摘要: Ti₄O₇由于具有较高的电化学稳定性和电子导电性,广泛应用于电化学领域,并展现出优异的性能。采用抽滤法制备了高性能的碳改性Ti₄O₇电极膜,并将其用于流通式过滤体系中,实现对苯酚的高效降解。利用SEM、XPS、XRD等对负载不同比例和不同结构碳材料的形貌和晶体结构进行了表征,研究不同催化剂类型和碳材料负载量、施加电压、溶液pH和流速对苯酚降解效率的影响。实验结果表明:当乙炔炭黑 (ATCE) 添加量为5%,电压为4 V,溶液pH为3.0,流速为1.5 mL/min时,电极膜在流通体系中的氧化通量达到1208.5 mg/(h·m²)。比较负载碳材料前后的电化学性能测试结果发现,存在于Ti₄O₇晶体之间的碳材料显著提升了电子转移速率,这进一步证实了电极表面性质与阳极电催化氧化性能之间的关系,为电极改进和反应器优化提供了新的方向。
- Ti₄O₇ /
- 阳极氧化 /
- 流通式体系 /
- 苯酚 /
- 超氧自由基
Abstract: Ti₄O₇, due to its high electrochemical stability and electronic conductivity, has been widely used in electrochemistry and has shown excellent performance. In this paper, a high-performance carbon modified Ti₄O₇ electrode membrane prepared by extraction and filtration method was used in a flow-through filtration system to achieve efficient phenol degradation. SEM, XPS, and XRD were used to characterize the morphology and crystal structure of carbon materials with different loading ratios and structures. The effects of different catalysts and carbon material loading, applied voltage, solution pH, and flow rate on the degradation efficiency of phenol were investigated. The results showed that the oxidation flux of the electrode film in the circulation system reached 1208.5 mg/(h·m²), when the addition of acetylene carbon black (ATCE) was 5%, the voltage was 4 V, the solution pH was 3.0, and the flow rate was 1.5 mL/min. Comparing the electrochemical performance test results before and after the loading of carbon material, it was found that the presence of carbon material between the Ti₄O₇ crystals significantly improved the electron transfer rate. This paper further confirms the electrode surface properties and the relationship between the anode electric catalytic oxidation performance, and provides a new path for the electrode reactor optimization
- Ti₄O₇ /
- anodized oxidation /
- flow-through system /
- phenol /
- O₂^-·

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