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31st Nano Congress for Future Advancements

London, UK

Ang Yun Mei Elisa

Ang Yun Mei Elisa

Nanyang Technological University, Singapore

Title: Transverse Flow Carbon Nanotube Membrane (TFCM) - An innovative ultrapermeable membrane design

Biography

Biography: Ang Yun Mei Elisa

Abstract

The transverse flow carbon nanotube (CNT) membrane (TFCM) is a membrane design based on CNTs stacked horizontally one on top of another, forming hourglass slits that allow fast water passage while blocking solutes. Using molecular dynamics, we show that TFCM offers permeability a few orders of magnitude larger than conventional polymeric membrane, and even more than twice that of two-dimensional graphene slit membranes. In this presentation, we will delve into the reasons why this simple design enables such high permeability and good rejection performance. We will also look at the TFCM’s performance with variation in CNT size and CNT layers. Though our simulations, we show that the TFCM design has much advantage over its axial flow CNT membrane counterpart. Our computational work provides evidence that transverse or outer flow CNT membrane is a simple and innovative design that could significantly improve future membranes’ performance, reducing the energy cost of membrane separation process like desalination.