Carbon nanotube immobilized membrane with controlled nanotube incorporation via phase inversion polymerization for membrane distillation based desalination

Document Type

Article

Publication Date

4-3-2018

Abstract

In this paper, we present an optimized method for carbon nanotube immobilization on membrane surface for seawater desalination via direct contact membrane distillation (DCMD). Carbon nanotube immobilized membranes (CNIM) are fabricated via phase inversion technique using a controlled approach for carbon nanotube (CNT) incorporation which provides additional pathways for water vapor diffusion. Surface morphology differed for membranes fabricated with varying PVDF concentrations which altered the CNT distribution and its interaction with water vapor. The water vapor flux by CNIM membrane was as high as 51.4 L/m2 hr, which was 76% higher than the unmodified support membrane at 60 °C. No significant salt leakage was observed with modified membrane. The overall mass-transfer coefficient for phase inversion membrane was nearly 1.8 times higher than unmodified membrane.

Identifier

85034856169 (Scopus)

Publication Title

Separation and Purification Technology

External Full Text Location

https://doi.org/10.1016/j.seppur.2017.11.053

e-ISSN

18733794

ISSN

13835866

First Page

249

Last Page

255

Volume

194

Grant

CBET-1603314

Fund Ref

National Science Foundation

This document is currently not available here.

Share

COinS