高效率的催化臭氧化降解Ni复杂废水使用Mn-N编码的活性碳催化剂
Caiyi Jiang1,2,3,4, Dongzheng Wang2,4, Min Li5
1State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China.
Langmuir : the ACS journal of surfaces and colloids
|January 4, 2025
概括
一种新型的-编活性碳 (Mn-N@AC) 催化剂通过催化臭氧化有效地去除复合废水. 这种高效的方法为环境保护提供了低成本的解决方案.
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:
- 无电涂料产生大量的复合废水,造成环境风险.
- 有效且具有成本效益的处理方法对于管理这种工业废水至关重要.
研究的目的:
- 合成和评估一种新的Mn-N编活性碳 (Mn-N@AC) 催化剂,用于对复合废水进行催化臭氧化.
- 为了研究催化剂的效率,稳定性和适用于不同的复合体.
- 阐明污染物降解的潜在机制.
主要方法:
- 通过浸沉合成Mn-N@AC催化剂.
- 使用BET,XRD,拉曼,SEM,FTIR和TPR进行表征.
- 使用模拟的Ni-EDTA,Ni-酸盐,Ni-酸盐和Ni-酸盐废水进行催化臭氧化实验.
- 机械研究涉及火实验和电子磁共振 (EPR).
主要成果:
- Mn-N@AC催化剂在从Ni-EDTA废水中去除TOC和总Ni方面表现出高效率 (分别为97.8%和92.7%).
- 催化剂在三个循环后保持了高的TOC去除效率 (93.6%),并且对各种复合物有效.
- 机理学研究表明,基基 (·OH) 和超氧化基 (·O2-) 是主要负责降解的活性物种.
结论:
- Mn-N@AC是复合废水的催化臭氧化的高效,稳定和适用的催化剂.
- 该研究提供了一种有希望的低成本和高效的方法,用于深层去除污染物.
- 了解基于激素的氧化机制有助于优化废水处理策略.
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