单立体陶CoTiO3/TiO2膜平衡在先进的氧化过程中的催化效率和耐久性
Yuyao Zhang1,2, Kwan Lam Yip1, Yonghyeon Kim1
1Department of Chemical and Environmental Engineering, School of Engineering and Applied Science, Yale University, New Haven, Connecticut 06511, United States.
Environmental science & technology
|March 28, 2025
概括
这项研究引入了一种具有CoTiO3/TiO2接口的耐用陶膜,用于先进的氧化过程. 它使用过氧硫酸盐 (PMS) 有效降解污染物,同时保持结构完整性,以有效处理废水.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 基于膜的先进氧化过程 (AOP) 对于降解持久性有机污染物是有效的.
- 一个关键的挑战是催化效率和膜耐久性之间的权衡.
- 催化元件的浸出和激进腐蚀限制了长期的性能.
研究的目的:
- 开发一种稳定的单立体陶膜,克服AOPs中的效率-耐久性权衡.
- 为了增强氧硫酸盐 (PMS) 的激活,并防止催化剂漏.
- 为先进的废水处理提供可扩展的解决方案.
主要方法:
- 合成了一种具有集成CoTiO3/TiO2接口的单质陶膜.
- 通过有限元素分析研究了催化剂分布.
- 使用双A降解和长期PMS暴露试验评估了催化性能和稳定性.
主要成果:
- CoTiO3 / TiO2 接口增强了 PMS 激活,并防止了 Co2 + 泄漏.
- 在25秒内达到99%的双甲去除.
- 在反应性PMS环境下在120小时运行期间保持结构完整性.
结论:
- 开发的膜设计成功地平衡了催化效率和耐用性.
- 优化的催化剂分布提高了PMS利用率,并最大限度地减少了激进腐蚀.
- 这种稳定的膜为处理废水中的持久有机污染物提供了一个有希望和可扩展的技术.
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