Oxidative destruction of refractory organic matter by titania-based metal single-atom co-catalyst

二氧化钛基金属单原子助催化剂氧化破坏难降解有机物

• 批准号: 22KF0180
• 负责人: 高岡 昌輝
• 金额: $ 1.41万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2023
• 资助国家: 日本
• 起止时间: 2023-03-08 至 2024-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22KF0180/
• 关键词: Catalyst; Characterization; Degradation; Mechanism; Lechate; Catalyst; Characterization; Degradation; Mechanism; Lechate

The degradation mechanism of catalytic and the pathway of humic acid was revealed. The important parameters such as initial solution concentration, air/pureoxygen, reaction temperature, catalyst dosage, and single-atom loading were discussed. Thestudy of the synergistic enhancement effect of single-atom loading on the catalytic reaction system was emphasized. By using the constructed porous TiZrO4/M hollow sphere catalyst, the catalytic oxidation experiment of humic acidwas carried out, and the degradation mechanism and pathway of humic acid are proposed, revealing the degradation efficiency and the surface catalytic oxidation reaction mechanism of humic acid. Since the prepared H-TiZrO4/M composite catalytic material has unique multi-channel confined structure, the influence of its structure features on the heterogeneous interface adsorption characteristics, the mass transfer capacity and electron transfer rate were studied thoroughly. We published two papers.

揭示了催化和腐殖酸途径的降解机制。讨论了重要参数，例如初始溶液浓度，空气/纯氧，反应温度，催化剂剂量和单原子载荷。强调了单原子载荷对催化反应系统的协同增强作用的特征。通过使用构造的多孔Tizro4/M空心球催化剂，提出了腐殖酸的催化氧化实验，并提出了腐殖酸的降解机制和途径，揭示了降解效率和腐殖酸的表面催化氧化反应机制。由于制备的H-Tizro4/M复合催化材料具有独特的多通道约束结构，因此对其结构特征对异质界面吸附特性的影响进行了彻底研究。我们发表了两篇论文。