从电池中回收的石墨转化为功能化的石墨烯基吸附剂,并应用于气体脱硫
Rodolfo Fernández-Martínez1, Isabel Ortiz2, M Belén Gómez-Mancebo1
1Chemistry Division, Technology Department, Research Centre for Energy, Environment and Technology (CIEMAT), 28040 Madrid, Spain.
Molecules (Basel, Switzerland)
|August 10, 2024
概括
这项研究从回收电池石墨中开发了基于减少的氧化石墨烯 (rGO) 的吸附剂,用于有效的脱硫. 这些新型材料为合成气清洁应用提供了可持续且具有成本效益的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境工程 环境工程
- 化学工程是化学工程的重要组成部分.
背景情况:
- 回收废弃的Zn/C电池对于可持续的资源管理和废物减少至关重要.
- 开发具有成本效益的方法来从电池废物中回收增值材料是必不可少的.
- 石墨烯氧化物 (GO) 和减少的石墨烯氧化物 (rGO) 显示出作为多功能材料的希望.
研究的目的:
- 制造基于减少的氧化石墨烯 (rGO) 的吸附剂,使用使用过的 Zn/C 电池的回收石墨.
- 研究这些基于rGO的新型复合材料的脱硫能力.
- 评估这些材料作为合成气清洁的可持续替代品的潜力.
主要方法:
- 使用水电金工艺从废弃的Zn/C电池中回收石墨.
- 使用Tour的方法合成了氧化石墨烯 (GO).
- 基于rGO的吸附剂是通过用水热途径用NiO和ZnO前体对GO进行兴奋剂制备的,然后进行化.
- 用波长分散式X射线光 (WDXRF) 和X射线衍射 (XRD) 进行了表征.
- 在各种条件下通过硫化试验评估了脱硫性能.
主要成果:
- 回收石墨已成功加工成石墨烯氧化物 (GO),与纯石墨相比.
- WDXRF和XRD证实了金属杂质的去除,并成功地用NiO和ZnO对rGO进行了兴奋剂.
- 制造的rGO-NiO-ZnO复合材料显示出显著的脱硫能力.
- 发现开发的吸附剂的性能与商业脱硫剂相当.
结论:
- 从废弃的Zn/C电池中回收的石墨是生产高质量的石墨烯氧化物的可行前体.
- 开发的rGO-NiO-ZnO复合材料具有出色的脱硫性能.
- 这项研究提出了一种具有成本效益和环保的方法,用于使用回收电池材料进行合成气清洁.
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