Enhanced durability and hydrophobicity of carbon nanotube bucky paper membranes in membrane distillation

2011 ◽  
Vol 376 (1-2) ◽  
pp. 241-246 ◽  
Author(s):  
Ludovic Dumée ◽  
Vincent Germain ◽  
Kallista Sears ◽  
Jürg Schütz ◽  
Niall Finn ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Membrane Distillation ◽  
Bucky Paper

The impact of hydrophobic coating on the performance of carbon nanotube bucky-paper membranes in membrane distillation

Desalination ◽  
2011 ◽  
Vol 283 ◽  
pp. 64-67 ◽  
Author(s):  
Ludovic Dumée ◽  
Jos L. Campbell ◽  
Kallista Sears ◽  
Jürg Schütz ◽  
Niall Finn ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Membrane Distillation ◽  
Hydrophobic Coating ◽  
The Impact ◽  
Bucky Paper

scholarly journals Characterization and evaluation of carbon nanotube Bucky-Paper membranes for direct contact membrane distillation

2010 ◽  
Vol 351 (1-2) ◽  
pp. 36-43 ◽  
Author(s):  
Ludovic F. Dumée ◽  
Kallista Sears ◽  
Jürg Schütz ◽  
Niall Finn ◽  
Chi Huynh ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Direct Contact ◽  
Membrane Distillation ◽  
Direct Contact Membrane Distillation ◽  
Bucky Paper

Development of Nano-Carbon Bucky-Paper Membranes for Membrane Distillation

2012 ◽  
Vol 724 ◽  
pp. 408-411 ◽  
Author(s):  
Jae Wuk Koo ◽  
Ji Hee Han ◽  
Sang Ho Lee ◽  
Jin Sik Sohn ◽  
June Seok Choi
Keyword(s):  
Polyvinylidene Fluoride ◽  
Membrane Distillation ◽  
Practical Implementation ◽  
Vapor Permeability ◽  
Feed Water ◽  
Hydrophobic Membrane ◽  
Salt Rejection ◽  
Multi Stage ◽  
And Performance ◽  
Bucky Paper

Membrane distillation (MD) is a special evaporation process to produce fresh water from seawater or contaminated water using membranes. MD has advantages over other evaporation technologies such as multi-stage flash vaporization (MSF) and multi-effect distillation (MED) due to its relatively low energy requirements, allowing the use of solar energy as its heat source. Nevertheless, lack of membrane materials for MD process hinders its practical implementation for desalination and water treatment. In this study, membranes made of carbon nanotube (CNT) are presented for MD. Flat sheet hydrophobic membranes made of polyvinylidene fluoride (PVDF) were selected as supports for bucky-paper membranes, allowing formation of CNT bucky-paper without chemical reactions. Laboratory-scale systems were used to evaluate their potential and performance in direct contact MD. Water permeability and salt rejection were analyzed for each case. D.I water and synthetic feed water were used for the lab-scale tests. It was demonstrated that the physical immobilization of CNT on a hydrophobic membrane changed led to an increase in vapor permeability while improving salt rejection.

scholarly journals Pore structure and oxidation stability of double-walled carbon nanotube-derived bucky paper

2005 ◽  
Vol 414 (4-6) ◽  
pp. 444-448 ◽  
Author(s):  
H. Muramatsu ◽  
T. Hayashi ◽  
Y.A. Kim ◽  
D. Shimamoto ◽  
Y.J. Kim ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Pore Structure ◽  
Oxidation Stability ◽  
Bucky Paper

scholarly journals Removal and Recovery of Methyl Tertiary Butyl Ether (MTBE) from Water Using Carbon Nanotube and Graphene Oxide Immobilized Membranes

Nanomaterials ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 578
Author(s):  
Worawit Intrchom ◽  
Sagar Roy ◽  
Somenath Mitra
Keyword(s):  
Graphene Oxide ◽  
Carbon Nanotube ◽  
High Performance ◽  
Water Solubility ◽  
High Water ◽  
Membrane Distillation ◽  
Methyl Tert Butyl Ether ◽  
Transfer Coefficients ◽  
Butyl Ether ◽  
Tertiary Butyl

Methyl tert-butyl ether (MTBE) is a widely used gasoline additive that has high water solubility, and is difficult to separate from contaminated ground and surface waters. We present the development in functionalized carbon nanotube-immobilized membranes (CNIM-f) and graphene oxide-immobilized membranes (GOIM) for enhanced separation of MTBE via sweep gas membrane distillation (SGMD). Both types of modified membranes demonstrated high performance in MTBE removal from its aqueous mixture. Among the membranes studied, CNIM-f provided the best performance in terms of flux, removal efficiency, mass transfer coefficients and overall selectivity. The immobilization f-CNTs and GO altered the surface characteristics of the membrane and enhanced partition coefficients, and thus assisted MTBE transport across the membrane. The MTBE flux reached as high as 1.4 kg/m2 h with f-CNTs, which was 22% higher than that of the unmodified PTFE membrane. The maximum MTBE removal using CNIM-f reached 56% at 0.5 wt % of the MTBE in water, and at a temperature of 30 °C. With selectivity as high as 60, MTBE recovery from contaminated water is very viable using these nanocarbon-immobilized membranes.

Sign in / Sign up

Export Citation Format

Share Document