4.6 Article

Environmental evaluation of carbon dot and fullerene formation in atmospheric particulate matter (PM10): observations from their free radical scavenging and electrochemical studies

期刊

ENVIRONMENTAL SCIENCE-NANO
卷 10, 期 1, 页码 311-324

出版社

ROYAL SOC CHEMISTRY
DOI: 10.1039/d2en00588c

关键词

-

向作者/读者索取更多资源

This innovative research evaluated the formation of water-soluble carbon dots (wsCDs) and onion-like fullerenes (wsOLFs) from atmospheric particulate matter (PM) in an oxidizing environment. The synthesized wsCDs were quasi-spherical in shape with an average size of 4-6 nm, while the wsOLFs were spherical and/or quasi-spherical with an average diameter ranging from 8-12 nm. The PM-derived carbon dots and fullerenes exhibited antioxidant properties and promising electrochemical properties, indicating their potential in environmental nanotechnology development.
Human exposure to atmospheric particulate matter (PM) is of great interest owing to its carbonaceous nature with potential health impact. Carbonaceous particulate matter (PM) is mainly composed of black carbon and organic carbon. The abundance of carbon in atmospheric PM can also lead to the formation of carbon nanomaterials under different environmental conditions. In this innovative work, we evaluated the formation of water-soluble carbon dots (wsCDs) and onion-like fullerenes (wsOLFs) from atmospheric particulate matter (PM) in an oxidizing environment. The synthesized wsCDs were quasi-spherical in shape with un-agglomerated or uniformly distributed particles with an average size of 4-6 nm. The wsOLFs were spherical and/or quasi-spherical in shape, with corresponding particle size distribution of an average diameter ranging from 8-12 nm. High resolution transmission electron microscopy images also showed concentric spherical shells like onions and fringes of graphitic planes with interplanar distances of 0.232-0.297 nm, which are smaller than that of graphite (0.336 nm). The PM-derived carbon dots and fullerenes were observed to be effective antioxidants from their free radical scavenging studies. Further, promising electrochemical properties are also detected with these materials indicating their potential prospects for development of environmental nanotechnology.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据