用生物废料原料甘油作为碳源合成中孔碳吸附剂,通过硬模板方法有效捕获CO2
Prabhu Azhagapillai1, K Suresh Kumar Reddy2,3, Gerardo D J Guerrero Pena1
1Department of Chemistry, Khalifa University of Science & Technology, Abu Dhabi 127788, U.A.E.
ACS omega
|June 26, 2023
概括
研究人员将生物废弃物原油甘油转化为多孔碳,用于环境修复. 这些新型材料具有出色的二氧化碳吸附能力,性能优于活性炭.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 将生物废物提升为多孔碳是环境修复的关键.
- 原油糖醇 (CG) 是废食用油的残留物,可提供具有成本效益的碳采购.
- 开发高效的二氧化碳吸收剂对于减缓气候变化至关重要.
研究的目的:
- 使用KIT-6作为模板制造基于原始甘油的半孔性多孔碳 (mCGPCs).
- 为了评估mCGPCs的二氧化碳吸附潜力.
- 为了比较mCGPCs与商业活性炭 (AC) 和CMK-8的性能.
主要方法:
- 使用KIT-6模板,从原始甘油中合成mCGPCs.
- 使用X射线衍射 (XRD),拉曼光谱和传输电子显微镜 (TEM) 的表征.
- 在最佳条件下对二氧化碳吸附能力的评估和热力学分析.
主要成果:
- 通过XRD,Raman和TEM证实了有序结构的中孔碳的成功合成.
- 与AC (0.689 mmol/g) 相比,mCGPCs具有更高的二氧化碳吸附能力 (1.045 mmol/g).
- mCGPCs的二氧化碳吸附能力与CMK-8 (1.8 mmol/g) 相当.
结论:
- 粗糖醇可以有效地转化为高性能中等孔碳吸附剂.
- mCGPCs是用于二氧化碳捕获应用的有希望的可持续材料.
- 这项研究强调了利用生物废物用于环境修复技术的潜力.
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