期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 592, 期 -, 页码 458-464出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.scitotenv.2017.03.126
关键词
Adsorption; Electrospinning; Polystyrene; Phenanthrene; Synthetic organic contaminants
资金
- NSF Nanosystems Engineering Research Center for Nanotechnology Enabled Water Treatment (NEWT) [EEC-1339500]
- NSF project [CBET-1236070]
- USEPA as part of the Networks for Characterizing Chemical Life Cycle [RD 83558001]
A composite material consisted of superfine powdered activated carbon (SPAC) and fibrous polystyrene (PS) was fabricated for the first time by electrospinning. SPAC is produced by pulverizing powdered activated carbon. The diameter of SPAC (100-400 nm) is more than one hundred times smaller than conventional powdered activated carbon, but it maintains the internal pore structure based on organic micropollutant adsorption isotherms and specific surface area measurements. Co-spinning SPAC into PS fibers increased specific surface area from 6 m(2)/g to 43 m(2)/g. Unlike metal oxide nanoparticles, which are non-accessible for sorption from solution, electrospinning with SPAC created porous fibers. Composite SPAC-PS electrospun fibers, containing only 10% SPAC, had 30% greater phenanthrene sorption compared against PS fibers alone. SPAC particles embedded within the polymer were either partially or fully incorporated, and the accessibility of terminal adsorption sites were conserved. Conserving the adsorptive functionality of SPAC particles in electrospun non-woven polymeric fiber scaffolding can enable their application in environmental applications such as drinking water treatment. (C) 2017 Elsevier B.V. All rights reserved.
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。
推荐
暂无数据