TY - JOUR
T1 - A Bilayered Structure Comprised of Functionalized Carbon Nanotubes for Desalination by Membrane Distillation
AU - Bhadra, Madhuleena
AU - Roy, Sagar
AU - Mitra, Somenath
PY - 2016/8/3
Y1 - 2016/8/3
N2 - The development of a novel carbon nanotube (CNT) immobilized membrane comprised of a double-layer structure is presented for water desalination by membrane distillation. The bilayered structure is comprised of CNTs functionalized with a hydrophobic octadecyl amine group on the feed side and carboxylated CNTs on the permeate side. The latter is more hydrophilic. The hydrophobic CNTs provide higher water vapor permeation, while the hydrophilic CNTs facilitate the condensation of water vapor. Together, these led to superior performance, and flux in a direct contact membrane distillation mode was found to be as high as 121 kg/m2h at 80 °C. The bilayered membrane represented an enhancement of 70% over the unmodified membrane and 37% over a membrane which had a monolayered structure where only the feed side was CNT-modified.
AB - The development of a novel carbon nanotube (CNT) immobilized membrane comprised of a double-layer structure is presented for water desalination by membrane distillation. The bilayered structure is comprised of CNTs functionalized with a hydrophobic octadecyl amine group on the feed side and carboxylated CNTs on the permeate side. The latter is more hydrophilic. The hydrophobic CNTs provide higher water vapor permeation, while the hydrophilic CNTs facilitate the condensation of water vapor. Together, these led to superior performance, and flux in a direct contact membrane distillation mode was found to be as high as 121 kg/m2h at 80 °C. The bilayered membrane represented an enhancement of 70% over the unmodified membrane and 37% over a membrane which had a monolayered structure where only the feed side was CNT-modified.
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U2 - 10.1021/acsami.6b05644
DO - 10.1021/acsami.6b05644
M3 - Article
AN - SCOPUS:84982740686
SN - 1944-8244
VL - 8
SP - 19507
EP - 19513
JO - ACS Applied Materials and Interfaces
JF - ACS Applied Materials and Interfaces
IS - 30
ER -