Nanoporous graphene oxide membrane and its application in molecular sieving

서지정보

ㆍ발행기관 : 한국탄소학회 ㆍ수록지정보 : Carbon Letters / 16권 / 3호
ㆍ저자명 : S. Mahmood Fatemi, Masoud Arabieh, Hamid Sepehrian

목차

1. Introduction
2. Simulation Details and Methods
3. Results and Discussion
4. Conclusions
References

한국어 초록

Gas transport through graphene-derived membranes has gained much interest recently dueto its promising potential in filtration and separation applications. In this work, we exploreKr-85 gas radionuclide sequestration from natural air in nanoporous graphene oxide membranesin which different sizes and geometries of pores were modeled on the graphene oxidesheet. This was done using atomistic simulations considering mean-squared displacement,diffusion coefficient, number of crossed species of gases through nanoporous graphene oxide,and flow through interlayer galleries. The results showed that the gas features have thedensest adsorbed zone in nanoporous graphene oxide, compared with a graphene membrane,and that graphene oxide was more favorable than graphene for Kr separation. The aim of thispaper is to show that for the well-defined pore size called P-7, it is possible to separate Kr-85from a gas mixture containing Kr-85, O2 and N2. The results would benefit the oil industryamong others.

영어 초록

Gas transport through graphene-derived membranes has gained much interest recently due
to its promising potential in filtration and separation applications. In this work, we explore
Kr-85 gas radionuclide sequestration from natural air in nanoporous graphene oxide membranes
in which different sizes and geometries of pores were modeled on the graphene oxide
sheet. This was done using atomistic simulations considering mean-squared displacement,
diffusion coefficient, number of crossed species of gases through nanoporous graphene oxide,
and flow through interlayer galleries. The results showed that the gas features have the
densest adsorbed zone in nanoporous graphene oxide, compared with a graphene membrane,
and that graphene oxide was more favorable than graphene for Kr separation. The aim of this
paper is to show that for the well-defined pore size called P-7, it is possible to separate Kr-85
from a gas mixture containing Kr-85, O2 and N2. The results would benefit the oil industry
among others.

참고 자료

없음