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

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.

揭示了腐植酸的催化降解机理和降解途径。讨论了初始溶液浓度、空气/纯氧、反应温度、催化剂用量和单原子负载量等重要参数。重点研究单原子负载对催化反应体系的协同增强作用。利用构建的多孔TiZrO4/M空心球催化剂，开展了腐植酸的催化氧化实验，提出了腐植酸的降解机理和路径，揭示了腐植酸的降解效率和表面催化氧化反应机理。由于所制备的H-TiZrO4/M复合催化材料具有独特的多通道限域结构，深入研究了其结构特征对异质界面吸附特性、传质能力和电子传递速率的影响。我们发表了两篇论文。

项目成果

Mineralize complex organic contaminants using only oxygen on dense copper atoms embedded in the walls of carbon nanotubes

• DOI: 10.1016/j.apsusc.2022.154760
• 发表时间: 2022-09
• 期刊: Applied Surface Science
• 影响因子: 6.7
• 作者: Jiabai Cai;Qi Jing;Huan Li;Lin Wang;Yingchao Cheng;M. Takaoka

Low-temperature degradation of humic acid via titanium zirconium oxide@copper single-atom activating oxygen: Mechanism and pathways

• DOI: 10.1016/j.cej.2022.138239
• 发表时间: 2022-07-23
• 期刊: CHEMICAL ENGINEERING JOURNAL
• 影响因子: 15.1
• 作者: Cai, Jiabai;Li, Huan;Takaoka, Masaki
• 通讯作者: Takaoka, Masaki

Copper atoms inlaid in titanium zirconium oxide spherical shell for the robust Fenton-like treatment of complex biogas slurry

铜原子镶嵌在钛锆氧化物球壳中，用于对复杂沼液进行稳健的类芬顿处理

• 发表时间: 2022
• 作者: JIABAI CAI;Huan Li;Masaki Takaoka
• 通讯作者: Masaki Takaoka

清華大学(中国)

清华大学（中国）