通过电化学方法从碳纤维增强聚合物中回收氧化石墨烯的纳米结构构筑学

Recycling Nanoarchitectonics of Graphene Oxide from Carbon Fiber Reinforced Polymer by the Electrochemical Method.

作者信息

Ling Li, Wu Chao, Xing Feng, Memon Shazim Ali, Sun Hongfang

机构信息

Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, China.

Department of Civil Engineering and Environmental Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan 010000, Kazakhstan.

出版信息

Nanomaterials (Basel). 2022 Oct 18;12(20):3657. doi: 10.3390/nano12203657.

DOI:10.3390/nano12203657

PMID:36296845

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9609354/

Abstract

In this paper, an electrochemical method was proposed to recycle nanoarchitectonics of graphene oxide (GO) from carbon fiber reinforced polymer (CFRP). In the recycling process, NaCl solution with varied concentrations (3% and 10%) and tap water were used as electrolyte, while the impressed current density varied from 2.67 A/m to 20.63 A/m. The results indicated that in NaCl electrolyte, the obtained nanoarchitectonics of GO contained a large amount of nano-carbon onions (NCO) produced by etching CFRP, while high purity GO was produced when tap water was used as electrolyte. The higher current density improved the production efficiency and resulted in a finer GO particle size. The proposed recycling method of GO is economical and simple to operate. It also provides an alternate approach to handle discarded CFRP.

摘要

本文提出了一种电化学方法，用于从碳纤维增强聚合物（CFRP）中回收氧化石墨烯（GO）的纳米结构。在回收过程中，使用不同浓度（3%和10%）的NaCl溶液和自来水作为电解质，外加电流密度在2.67 A/m至20.63 A/m之间变化。结果表明，在NaCl电解质中，所获得的GO纳米结构包含大量通过蚀刻CFRP产生的纳米碳洋葱（NCO），而当使用自来水作为电解质时，则产生了高纯度的GO。较高的电流密度提高了生产效率，并导致GO颗粒尺寸更细。所提出的GO回收方法经济且操作简单。它还为处理废弃的CFRP提供了一种替代方法。