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RESEARCH PRODUCT

A novel T-C3N and seawater desalination

Chui-peng KongHong-xing ZhangFu-quan BaiLei LiJia-qi ZhouPeng FuCong FuJian WangRoberts I. EglitisRan Jia

subject

MembraneMaterials scienceAdsorptionChemical engineeringAb initio quantum chemistry methodsMonolayerGeneral Materials ScienceDirect and indirect band gapsNanofiltrationPermeationPorosity

description

A structurally stable stacked multilayer carbonitride is predicted with the aid of ab initio calculations. This carbonitride consists of C3N tetrahedra, and is similar to T-carbon and thus named T-C3N. Its 2-dimensional (2D) monolayer is also carefully investigated in this work. The studies on electronic properties reveal that bulk and 2D T-C3N are insulators with a 5.542 eV indirect band gap and a 5.741 eV direct band gap, respectively. However, the monolayer T-C3N exhibits an excellent uniform porosity. Its 5.50 A pore size is perfect for water nanofiltration. The adsorption and permeation of water molecules on the monolayer T-C3N are investigated. Its promising potential application in highly efficient nanofiltration membranes for seawater desalination is discussed.

https://doi.org/10.1039/c9nr08108a