利用凝废料制成高效的双模态多孔吸附剂,用于二氧化碳捕获
Thanapha Numpilai1, Thongthai Witoon2,3
1Department of Environmental Science, Faculty of Science and Technology, Thammasat University, Pathum Thani, 12120, Thailand.
ChemPlusChem
|November 7, 2023
概括
这项研究从废弃的凝中开发出双模体多孔,用于二氧化碳捕获. 该材料表现出优异的二氧化碳吸收和稳定性,突出了其在碳捕获应用中的潜力.
科学领域:
- 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.
- 环境科学 环境科学
背景情况:
- 多孔的二氧化材料对于各种应用至关重要,包括催化和吸附.
- 开发可口材料的可持续合成方法对于环境保护至关重要.
- 需要有效的碳捕获技术来缓解气候变化.
研究的目的:
- 使用酸盐和废物凝合成双模孔状二氧化.
- 为了研究与聚乙烯胺 (PEI) 功能化的双模体多孔的二氧化碳捕获性能.
- 为了比较二模态多孔的性能与单模态和空洞球的二氧化碳捕获.
主要方法:
- 通过酸盐和废在不同比例上合成多孔的二氧化材料.
- 使用像传输电子显微镜 (TEM) 这样的技术来描述毛孔结构.
- 评估PEI载荷材料的二氧化碳吸附能力和稳定性.
主要成果:
- 双模态多孔与中孔和宏孔在1.0-1.5.5的与凝比率下成功合成.
- 与PEI加载的双模体相比,与单模体和空心相比,具有更高的CO2吸收率 (145.6毫克/克在90°C).
- TEM分析显示,PEI在双模孔中的分布均,提高了二氧化碳捕获效率.
- 所有经过测试的材料都表现出极好的周期稳定性,在20个周期内容量损失微不足道.
结论:
- 从废旧的凝中合成的二模道尔多孔是捕获二氧化碳的有希望的材料.
- 双模性的独特孔隙结构促进了有效的PEI负载和CO2吸附.
- 该材料的高容量和稳定性使其成为工业碳捕获应用的可行候选者.
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