文献类型：期刊文献

英文题名：Permeability and selectivity analysis for affinity-based nanoparticle separation through nanochannels

作者：Yu, Hongping[1,2];Wang, Zhichao[1,2];Long, Ting[1,2];Li, Yu[1,2];Thushara, Dilantha[3];Bao, Bo[1,2];Zhao, Shuangliang[1,2,4,5]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China;[3]Univ Moratuwa, Dept Chem & Proc Engn, Moratuwa, Sri Lanka;[4]Guangxi Univ, Guangxi Key Lab Petrochem Resource Proc & Proc In, Nanning 530004, Peoples R China;[5]Guangxi Univ, Sch Chem & Chem Engn, Nanning 530004, Peoples R China

年份：2022

卷号：68

期号：5

外文期刊名：AICHE JOURNAL

收录：;EI(收录号：20220311482708);WOS:【SCI-EXPANDED(收录号:WOS:000743566500001)】；

基金：This work is supported by the National Natural Science Foundation of China (Nos. 21808056, 21878078, and 91934302) and the Shanghai International Science and Technology Collaboration Program (No. 18160743700). Shuangliang Zhao acknowledges A.V. Neimark at Rutgers University for stimulating discussions.

语种：英文

外文关键词：affinity-based separation; nanochannel; nanoparticle separation; permeability and selectivity; trade-off

摘要：Whereas the separation by surface affinity represents an advanced technique for the separation of nanoparticles with distinct surface properties, how the interaction of particles with nanochannel impacts the separation performance is less understood. Herein, the dynamical density functional theory is employed to study the separation of two types of similar-sized particles with different surface affinities within nanochannels. We show that a proper design of the channel inner-surface, which attracts one type of particles while repelling the other, can promote the permeability and selectivity of particles. Meanwhile, the trade-off relations between permeability and selectivity are found and analyzed in nanochannels of different sizes. Based on dynamical density functional theory calculations, an extended model relating permeability to the equilibrium partition coefficient is proposed to analyze the permeability and selectivity, which displays good predictions of the transport of charged particles in comparison with experimental results. This work provides helpful insights for designing an efficient affinity-based separation of nanoparticles process through nanochannels.