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通过使用ZnCl₂作为激活剂从花生中制造活性碳的微波辅助增强二醇蒸汽吸附

Sinan Kutluay¹, Ömer Şahin¹, Orhan Baytar²

¹Department of Chemical Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey.

Environmental science and pollution research international

|March 25, 2024

概括

从花生中获得的微波辅助活性炭有效地去除气,一种挥发性有机化合物 (VOC). 这种新型吸附剂显示出高容量和出色的可重复使用性,用于工业空气净化.

科学领域:

材料科学材料科学材料科学
环境化学环境化学
化学工程是化学工程的重要组成部分.

背景情况:

像这样的挥发性有机化合物 (VOC) 构成环境和健康风险.
活性炭是消除VOC的常见吸附剂,但开发高效和可持续的选择至关重要.
花生提供了一个潜在的低成本,生物质衍生前体,用于活性碳的生产.

研究的目的:

从花生中制造和优化微波辅助活性炭 (MW-AC),用于蒸汽吸附.
调查开发的MW-AC的吸附性能,动力学和可重复使用性.
评估MW-AC作为一种可持续的吸收剂,用于工业应用中的VOC去除.

主要方法:

花生被烧解并使用微波辐射和ZnCl2.2激活.
响应表面方法 (Box-Behnken方法) 用于优化吸附条件.
描述包括SEM,FTIR和BET分析;吸附动力学和异温物被研究.

主要成果:

优化的MW-AC实现了1250 mg/g的含量和1204.90 m2/g的BET表面积.
在最佳条件下 (80分钟,18ppm,26°C),的最大吸附能力达到568.34mg/g.
吸附遵循伪二次动力学和兰木尔异热模型,在五个周期后具有86.54%的重复利用效率.

结论:

来自花生的微波辅助活性炭是一种高度有效的气吸收剂.
开发的MW-AC显示出出色的吸附能力,有利的动力学和卓越的可重复使用性.
这种可持续吸附剂在工业VOC处理应用中显示出显著的前景.

关键词:

二烯的吸附方式实验设计实验设计异热体 (isotherms) 是一种热体.运动学运动学微波辅助活性碳的使用

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