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微波介导的红泥/生物炭激活碳酸盐:氧空缺的协同优化和双热点效应

Yuzhi Liu¹, Chuang Wu¹, Wei Gao²

¹Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, 2519 Jiefang Road, Changchun 130021, China.

Journal of colloid and interface science

|July 27, 2025

概括

这项研究引入了一种新型的红泥/生物炭催化剂,用于降解废水中的塑料添加剂甲基甲酸盐,使用微波激活的碳酸. 该过程实现了96.1%的去除效率,减少了生态毒性.

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:

塑料废水处理和红泥回收利用带来了重大的环境挑战.
甲基甲酸 (DEP) 是一种常见的塑料添加剂,需要有效的降解方法.
为先进的氧化过程开发高效的催化剂至关重要.

研究的目的:

准备一个微波响应的红泥/生物炭 (RM/BC) 催化剂,以激活碳酸 (SPC).
研究磁性和介电损失对降解DEP的协同效应.
评估红泥的资源回收潜力和该过程的生态毒性.

主要方法:

在600°C的氧气有限条件下,通过叶粉和红泥的热解制备RM/BC催化剂.
使用FTIR,拉曼光谱和EPR等技术进行表征.
使用微波辐射下的响应表面方法优化DEP降解.

主要成果:

RM/BC-600复合材料表现出双热点效应和丰富的氧气空缺,促进SPC激活.
基基 (•OH) 被确定为主要的活性氧物种 (ROS).
在最佳条件下,DEP去除效率为96.1%,已确定降解途径,预测毒性降低.

结论:

RM/BC催化剂有效地激活了塑料废水中DEP降解的SPC,利用微波诱导的双热点效应.
这种方法为红泥资源回收和废水危害减轻提供了一种绿色战略.
该过程表现出最小的生态毒性,使其成为环境修复的可持续解决方案.

关键词:

甲基甲基甲酸二甲基甲酸二甲基甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸热点热点是一个热点.微波电波公司的微波.过碳酸盐是一种碳酸盐.红色的泥 / 生物炭

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