从塑料废弃物中催化制造石墨烯,碳球和碳纳米管
Eslam Salama1, Safaa Mohamed1, Mahmoud Samy2
1Environment and Natural Materials Research Institute (ENMRI), City of Scientific Research and Technological Applications (SRTA-City) New Borg El-Arab City Alexandria 21934 Egypt esalama@srtacity.sci.eg.
RSC advances
|January 10, 2024
概括
研究人员开发了具有成本效益的方法,将聚乙烯二甲 (PET) 和聚烯 (PP) 等废塑料转化为有价值的碳材料,包括石墨烯,碳球和碳纳米管,用于潜在的环境应用.
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:
- 塑料废物,特别是聚乙烯二甲 (PET) 和聚烯 (PP),对环境构成重大挑战.
- 开发可持续和经济的塑料再循环方法对于废物管理和资源回收至关重要.
研究的目的:
- 调查PET和PP废物的可持续和经济的回收利用方法.
- 从这些塑料中生产高价值的碳材料,如石墨烯 (G),碳球 (CS) 和碳纳米管 (CNT).
- 评估合成碳材料的性能和潜在应用.
主要方法:
- 催化热解被用来将PET和PP转化为碳材料.
- 使用X射线衍射 (XRD) 和富里埃转换红外光谱 (FTIR) 进行结构分析.
- 进行了传输电子显微镜 (TEM),能量散射X射线 (EDX) 光谱,X射线光电子光谱 (XPS) 和布鲁纳尔艾梅特泰勒 (BET) 分析以进行材料表征.
主要成果:
- 从PET和PP成功合成了石墨烯,碳球和碳纳米管.
- 鉴定证实了具有石墨结构和高纯度的碳材料的形成.
- 合成的碳纳米管表现出最高的表面积 (54.872 m2/g),紧随其后的是碳球 (54.807 m2/g).
- 与碳球和碳纳米管相比,石墨烯表现出优越的热稳定性.
结论:
- 该研究成功地证明了一种可持续和经济的方法,可以将PET和PP废物再循环转化为有价值的碳纳米材料.
- 合成的石墨烯,碳球和碳纳米管具有理想的特性,包括高碳含量和表面积.
- 这些碳材料在环境修复中的应用方面显著有前途.
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