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在嵌入式混合结构中,VOCs的深度矿化 CoFe₂O₄/MoS₂/PMS湿洗系统

Xiai Zhang¹, Wenquan Zhang², Xinwei Zhang¹

¹Ministry of Education Key Laboratory for Non-equilibrium Synthesis and Modulation of Condensed Matter, Shaanxi Province Key Laboratory of Advanced Functional Materials and Mesoscopic Physics, School of Physics, Xi'an Jiaotong University, Xi'an 710049, P.R. China.

|October 12, 2023

概括

这项研究引入了一种新的催化剂,用于使用过氧硫酸盐 (PMS) 降解二烯. 新的CoFe2O4/MoS2催化剂在2小时内实现了95%的托卢烯去除,为去除挥发性有机污染物提供了一种有效的方法.

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:

基于氧硫酸盐 (PMS) 的先进氧化工艺对于在液相系统中降解多是有效的.
PMS的异质激活往往受到过渡金属离子的低降解效率的影响.

研究的目的:

为了合成磁性可分离的异质连接催化剂,以增强二烯降解.
通过使用一种新的CoFe2O4/MoS2/PMS系统,研究烯的催化活性和降解途径.

主要方法:

在MoS2纳米花中嵌入分散的CoFe2O4纳米球的合成,采用甲基醇结构表面活性剂.
使用CoFe2O4/MoS2/PMS系统进行烯降解.
采用激光火实验和电子磁共振 (EPR) 光谱来识别反应性氧物种.

主要成果:

CoFe2O4 / MoS2 / PMS系统在2小时内实现了95%的托洛去除效率.
硫酸盐基 (SO4•−),超氧化基 (•O2−),基 (•OH) 和单片氧 (1O2) 对二烯降解的贡献已确定.
证明MoS2通过Fe3+/Fe2+氧化还原相互作用促进PMS激活,从而提高减氧效率.

结论:

开发的CoFe2O4/MoS2异构结催化剂有效地激活了PMS用于二烯降解.
该系统表现出高效率,并抑制有毒副产品的形成.
这种环境温度液相法为工业挥发性有机污染物去除提供了一个有前途的途径.

关键词:

催化剂是一种催化剂.环境科学环境科学绿色化学是一种绿色化学.材料科学是一种材料科学.

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