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优异的双A去除性能,由中嵌入的化,硫碳/MXene中的电子转移模式触发

Xin Guo¹, Yunlong Wang¹, Chengming Xiao¹

¹Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.

Journal of colloid and interface science

|October 18, 2024

概括

一种新型的催化剂通过先进的氧化过程中通过电子转移过程有效地降解双A (BPA). 这种-硫配合化碳封装的化在MXene纳米片上提供了一个有希望的解决方案,用于有机废水处理.

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:

基于硫酸盐的先进氧化过程 (AOP) 对于去除有机污染物至关重要.
非激素通路,特别是电子转移过程 (ETP),正因其效率而受到越来越多的关注.
设计有效的催化剂和了解它们的机制对于优化污染物去除至关重要.

研究的目的:

合成一种用于废水中有效降解双A (BPA) 的新型催化剂.
研究BPA降解的机制,重点关注电子转移过程 (ETP).
通过催化剂设计,提高基于酸盐的AOP的性能.

主要方法:

在MXene纳米片 (MZPC) 上合成-硫联合合的碳封装化 (Co2P).
使用相关技术进行合成催化剂 (MZPC-9) 的表征.
使用过氧硫酸盐 (PMS) 评估BPA降解效率和动力学.
研究涉及PMS激活和复合体形成的催化机制.

主要成果:

优化的催化剂 (MZPC-9) 在5分钟内与PMS实现了98.2%的BPA降解.
降解跟随伪第一阶动力学,具有高速率常数 (k = 1.485 min-1).
在MXene上均分散的Co2P纳米粒子增强了PMS的结合,形成了强大的氧化复合物.
实现了81%的总有机碳 (TOC) 去除,这表明有效的矿化.

结论:

在MXene (MZPC) 上与和硫联合合的碳封装化是BPA降解的高效催化剂.
增强的性能归因于催化剂促进的ETP主导的非激进途径.
本研究提供了关于设计金属活性中心的见解,以改善AOP中的污染物降解.

关键词:

电子转移过程是电子转移的过程.不同原子的兴奋剂.金属有机框架 (MOFs) 是指金属有机框架.非激进的途径.硫酸盐的激活方式 Ti(3)C(2)T(x) MXene 这种物质是什么?

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