对具有不同Fe/Ce摩尔比率的Fe-Ce-Al/MMT催化剂的性能测试的研究,用于化废水处理
Xiaoping Su1, Xiangtong Wang1, Ning Li1
1Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, Gansu Province Research Center for Basic Sciences of Surface and Interface Chemistry, College of Chemical Engineering, Northwest Minzu University, Lanzhou 730124, China.
Molecules (Basel, Switzerland)
|May 11, 2024
概括
开发一种最佳的Fe-Ce-Al/MMT催化剂,有效处理焦化废水. 这种先进的催化剂在最佳条件下实现了86.23%的化学氧需求 (COD) 清除率.
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:
- 焦化废水由于其复杂的组成,造成了重大的环境挑战.
- 有效的处理方法和催化剂对于工业废水管理至关重要.
- 铁/蒙莫里隆 (Fe-Ce-Al/MMT) 催化剂在废水处理方面表现有前景.
研究的目的:
- 准备和描述具有不同Fe/Ce摩尔比率的Fe-Ce-Al/MMT催化剂.
- 优化焦化废水的催化处理,使用性能最佳的催化剂.
- 为了确定最大限度地减少化学氧需求 (COD) 的最佳反应条件.
主要方法:
- 使用不同的Fe/Ce摩尔比率制备催化剂.
- 催化剂通过X射线衍射 (XRD),扫描电子显微镜 (SEM) 和N2吸附/溶解来进行表征.
- 使用响应表面方法 (RSM) 对模拟和真实焦化废水的处理条件的优化.
主要成果:
- 最佳的Fe-Ce-Al/MMT催化剂 (Fe/Ce摩尔比为7/3) 呈现出增强的特性,包括更大的层间间距,特定表面积和孔径.
- 确定了处理真正焦化废水的最佳条件:初始pH值3.46,H2O2剂量19.02mL/L,Fe2+剂量5475.39mL/L,温度60°C,反应时间248.14分钟.
- 在这些优化条件下,COD去除率达到了86.23%.
结论:
- 具有7/3 Fe/Ce摩尔比率的Fe-Ce-Al/MMT催化剂在焦化废水处理中非常有效.
- 使用这种催化剂优化的芬顿式氧化过程显著降低了焦化废水中的COD.
- 这项研究提供了一种可行的催化方法,用于高效处理具有挑战性的工业废水.
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