高校化学工程学报Issue(4)：707-711,5.DOI:10.3969/j.issn.1003-9015.2014.04.003
正渗透过程中水和离子在碳纳米管中的传递行为研究
Study on Transport Behaviours of Water Molecules and Ions in Carbon Nanotube during Forward Osmosis Processes
摘要
Abstract
The influence of carbon nanotube (CNT) dimension (CNT(6,6), CNT(7,7), CNT(8,8), CNT(9,9), CNT(10,10) and CNT(11,11)) and NaCl concentrations (2.5mol⋅L-1, 3.75 mol⋅L-1 and 5 mol⋅L-1) on forward and reversed transport behaviours of water molecules/ions in forward osmosis membranes was explored by molecular dynamic computer simulation. Based on the computer simulation results, the relevant information inside different CNT membranes, including the evolution of water flux with time and the forward and reversed motion of ions in carbon nanotubes were acquired. The former one is closely related to the diameter of carbon nanotubes and the diffusion rate of water in the carbon nanotubes. Furthermore, the reversed penetration of ions in the draw solution depends on the concentration difference between the two sides of the membrane, and the ion energy barrier at the entrance of carbon nanotubes.关键词
正渗透/膜分离/脱盐/纳米碳管/分子动力学模拟Key words
forward osmosis/membrane separation/desalination/carbon nanotube分类
化学化工引用本文复制引用
贾玉香,陈立军,李燕,胡仰栋..正渗透过程中水和离子在碳纳米管中的传递行为研究[J].高校化学工程学报,2014,(4):707-711,5.基金项目
国家自然科学基金(20806076)；山东省自然科学基金(ZR2011EMQ004)资助。 （20806076）
