有效的CO2排放量
Peiliang Liu1, Shumeng Qin1, Jieni Wang2
1Miami College, Henan University, Kaifeng, 475004, China.
Environmental pollution (Barking, Essex : 1987)
|June 9, 2023
概括
抗生素发酵残留物被转化为化碳,以有效捕获二氧化碳 (CO2). 这种可持续的方法产生了高的二氧化碳吸附和选择性,为环境带来了好处.
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:
- 对抗生素发酵残留物的合理处置对于环境保护至关重要.
- 从废品中开发高效的碳捕获材料是一个活跃的研究领域.
研究的目的:
- 为了将氧化三环素发酵残留物转化为添加的纳米多孔碳材料.
- 评估材料对二氧化碳 (CO2) 捕获的性能.
主要方法:
- 低温热解氧化氧化三环素残留物的预碳化.
- 在温和条件下使用KOH进行热溶性激活 (600°C,KOH/OC=2).
- 由此产生的碳材料的表征和评估二氧化碳吸附能力和选择性.
主要成果:
- 优化的激活条件增强了微孔性,并保持了in-situ含量.
- 添加的纳米孔状碳具有较高的二氧化碳吸附率 (在25°C时为4.38 mmol g−1,在0°C时为6.40 mmol g−1).
- 该材料表现出优异的CO2/N2选择性 (32/1) 和可重复使用性 (5个循环后减少4%).
结论:
- 氧化四环素发酵残留物可以有效地转化为N-化纳米孔状碳,用于二氧化碳捕获.
- 该材料的特性,包括微孔性和兴奋剂,增强了二氧化碳吸附.
- 这种方法为废物利用和碳捕获技术提供了一个可持续的途径.
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