废弃的阳极石墨衍生碳催化剂的合理设计,以激活用于亚特拉降解的过氧硫酸盐
Xufeng Qian1, Jingqin Ji2, Yanlan Zhao3
1College of Resources and Environmental Engineering, Guizhou University, Guiyang, 550025, PR China.
Environmental research
|June 2, 2024
概括
从废旧的离子电池中回收的石墨有效地使用过氧化硫酸盐降解了阿特拉. 这种可持续的方法将电池废物转化为环境修复的功能催化剂.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 催化剂是一种催化剂.
背景情况:
- 越来越多的废离子电池 (LIB) 需要可持续的回收策略.
- 来自消耗LIB的阳极石墨提供了将其转换为增值材料的机会.
- 有效降解像阿特拉津 (ATZ) 这样的持久有机污染物对于环境保护至关重要.
研究的目的:
- 从废弃的阳极石墨中开发功能性催化剂,用于过氧硫酸盐 (PMS) 激活.
- 研究这些催化剂在降解除草剂阿特拉 (ATZ) 的效率.
- 探索降解途径并评估该过程的环境安全性.
主要方法:
- 来自LIBs的消耗阳极石墨在各种温度下被化,以产生碳酸催化剂 (TG).
- 评估了TG材料的催化活性,以测量氧硫酸盐 (PMS) 驱动的亚特 (ATZ) 降解.
- 进行了优化条件,涉及激素和单片氧的降解机制,以及毒性评估.
主要成果:
- 在800°C下化石墨的催化剂 (TG-800) 在6分钟内实现了99.2%的阿特拉去除.
- 该TG-800/PMS系统使用自由基 (SO4•−,HO•),单片氧 (1O2) 和直接电子转移.
- 在TG-800上的基 (CO) 群被确定为PMS激活的主要活性位点,中间毒性下降.
结论:
- 废弃的阳极石墨可以有效地被重新利用成为污染物降解的高性能催化剂.
- TG-800/PMS系统提供了一种高效和可持续的去除阿特拉的方法.
- 这项研究为废物利用和环境修复提供了有价值的途径.
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