球形和管状富勒烯纳米粒子在紫外（UV）辐照下于水中的光化学反应比较。

Comparative photochemical reactivity of spherical and tubular fullerene nanoparticles in water under ultraviolet (UV) irradiation.

机构信息

Department of Civil and Environmental Engineering, Pratt School of Engineering, Duke University, Durham, NC 27708, USA.

出版信息

Water Res. 2011 Jan;45(1):308-14. doi: 10.1016/j.watres.2010.07.067. Epub 2010 Aug 3.

DOI:10.1016/j.watres.2010.07.067

PMID:20708771

Abstract

Fullerene nanomaterials are finding an increasing number of applications in energy and environmental technologies. However, substantial production and use of fullerenes will likely lead to environmental exposure with unknown consequences. In this study, aqueous suspensions of three types of fullerenes nanoparticles, C(60) fullerene, single-wall (SW) and multi-wall (MW) carbon nanotubes (CNT) were prepared by sonication and tested for reactive oxygen species (ROS) production and oxidation of benchmark organic compounds under ultraviolet (UV)-A irradiation. All three fullerenes formed colloidal aggregates in water. SWCNTs showed the highest ROS production and 2-chlorophenol degradation followed by MWCNT, and fullerene.

摘要

富勒烯纳米材料在能源和环境技术中的应用越来越多。然而，大量生产和使用富勒烯可能会导致环境暴露，其后果未知。在这项研究中，通过超声处理制备了三种类型的富勒烯纳米颗粒，C(60)富勒烯、单壁（SW）和多壁（MW）碳纳米管（CNT）的水悬浮液，并在紫外（UV）-A 照射下测试了它们对活性氧（ROS）的产生和基准有机化合物的氧化作用。这三种富勒烯在水中均形成胶体聚集物。SWCNT 表现出最高的 ROS 生成和 2-氯苯酚降解，其次是 MWCNT 和富勒烯。