光催化
材料科学
化学工程
光化学
无定形固体
氢化物
空气净化器
催化作用
金属
有机化学
化学
冶金
机械工程
工程类
入口
作者
Ji Won Lee,Rak Hyun Jeong,Il‐Seon Shin,Jin‐Hyo Boo
出处
期刊:Catalysts
[MDPI AG]
日期:2023-05-25
卷期号:13 (6): 935-935
标识
DOI:10.3390/catal13060935
摘要
We synthesized an amorphous Ti-based hydroperoxo complex (ATPC) using a facile method involvingonly titanium hydride (TiH2) and H2O2 under mild conditions. We chose TiH2 as the precursor because it has more reactive sites than metal oxides such as TiO2. Qualitative and quantitative optical measurements showed that our synthesized ATPC photocatalysts contained many hydroperoxo groups and various oxidation states of Ti (Ti2+, Ti3+, and Ti4+). Thus, the synthesized ATPC exhibits excellent photocatalytic properties with very fast rates of organic decolorization compared to other conventional visiblelight catalysts. The presence of many hydroperoxo complexes increases the formation of active radicals, which can degrade VOCs such as acetaldehyde in a gas phase. To test the application of the synthesized ATPC, we fabricated a filter system in an air purifier using ATPC coating layers and successfully removed the VOCs. We also proposed a possible photocatalytic oxidation mechanism with ATPC based on this study. It is important to conduct application tests as well as commercialization in photocatalytic experiments.
科研通智能强力驱动
Strongly Powered by AbleSci AI