果物废弃物衍生的活性碳的CO2吸收:吸附动力学和异温体的系统建模
Sooraj Mohan1, K Ashwini2, P Dinesha3
1Department of Mechanical and Industrial Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, India.
Scientific reports
|December 4, 2025
概括
水果废物可以转化为活性炭,以有效捕获二氧化碳 (CO2). 这项研究模拟了这些材料的二氧化碳吸附,揭示了它们作为减缓气候变化的可持续吸附剂的潜力.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 减缓气候变化需要具有成本效益的二氧化碳 (CO2) 捕获技术.
- 农业废物如水果皮的利用,为二氧化碳捕获材料的开发提供了一种可持续的方法.
研究的目的:
- 开发一个系统的建模框架来解释从香和皮中获得的活性水炭上的二氧化碳吸附.
- 评估吸附机制,并确定适合二氧化碳吸收的动态和异热模型.
主要方法:
- 水热碳化被用来从香和子皮中合成活性水炭.
- 应用了多种动态 (例如伪二次,Elovich) 和等温 (例如,Toth,Sips) 模型来分析二氧化碳吸附数据.
- 使用确定系数 (R2) 和Akaike信息标准 (AIC) 的统计评估确保了强大的模型比较.
主要成果:
- 动力学分析表明,伪二阶和埃洛维奇模型最好地描述了二氧化碳的吸收,这表明在异质表面上的化学吸收.
- 同温分析显示,Toth和Sips模型提供了最适合平衡数据,支持单层吸附与微孔填充.
- 来自水果废物的活性化碳水化合物显示出有效的二氧化碳吸附能力.
结论:
- 该研究成功建立了一个建模框架,以了解水果废弃物衍生的碳化合物的二氧化碳吸附.
- 这些水炭作为可扩展和可持续的二氧化碳捕获吸附剂显著有前途,有助于减缓气候变化的努力.
- 这些发现有助于进一步了解生物炭基材料上二氧化碳吸附的机制.
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