通过高表面积捕获CO2 活性碳 来自 Balanites Aegyptiacaca的种子
Hamza A Asmaly1, Abdullah Khalil2, Abbas Saeed Hakeem1
1Interdisciplinary Research Center for Hydrogen Technologies and Carbon Management (IRC-HTCM), Research Institute, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia.
Chemistry, an Asian journal
|May 2, 2024
概括
这项研究提出了一种来自沙漠枣种子的新型活性碳,用于捕获二氧化碳 (CO2). 这种可持续材料具有很高的二氧化碳吸收和选择性,为环境污染控制提供了一个有希望的解决方案.
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:
- 活性炭是捕获环境污染物的关键吸收剂,包括二氧化碳 (CO2).
- 农业废物,如Balanites aegyptiaca (沙漠日) 种子,代表了未充分利用的资源.
- 开发有效的方法来将废物转化为高性能吸附剂对于可持续的环境管理至关重要.
研究的目的:
- 为捕获二氧化碳,从 Balanites aegyptiaca 种子中合成和描述活性碳.
- 在表面积,孔径大小和二氧化碳吸收能力方面评估合成活性炭的性能.
- 展示农业废弃物回收利用对环境修复的潜力.
主要方法:
- 使用氧化 (KOH) 对 Balanites aegyptiaca 种子进行生物质预处理.
- 在受控温度配置下进行多阶段碳化,以优化活性碳的性能.
- 活性炭表面积,孔径分布和在0°C的CO2吸附能力的表征.
主要成果:
- 合成的活性炭表现出高表面积超过3000 m2/g,平均孔径大约为4.1 nm.
- 在0°C时达到11.3 mmol/g的显著CO2吸收率,超过了之前报告的活性炭.
- 对于二氧化碳吸附的选择性比其他气体有更高的证明.
结论:
- 开发了一种有效的方法,将 Balanites aegyptiaca农业废物转化为高性能活性炭.
- 优化的活性炭显示出捕获二氧化碳和其他环境污染物的极佳潜力.
- 这种方法为废物回收和环境保护提供了一种可持续且具有成本效益的途径.
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