Flux enhancement in direct contact membrane distillation by implementing carbon nanotube immobilized PTFE membrane

Madhuleena Bhadra; Sagar Roy; Somenath Mitra

doi:10.1016/j.seppur.2016.01.046

Flux enhancement in direct contact membrane distillation by implementing carbon nanotube immobilized PTFE membrane

Madhuleena Bhadra, Sagar Roy, Somenath Mitra

Research output: Contribution to journal › Article › peer-review

108 Scopus citations

Abstract

Carbon nanotube (CNT) enhanced direct contact membrane distillation (DCMD) is presented for water desalination. We investigated the immobilization of CNTs on a polytetrafluoroethylene (PTFE) membrane. The presence of CNTs on the hydrophobic membrane favorably altered the water-membrane interactions to promote water vapor transport while preventing salt water penetration into the membrane pores. For a salt concentration of 34,000 mg l^-1 and at 70 °C, the CNT incorporation led to a 54% enhancement in permeate flux, which was as high as 69 kg/m² h.

Original language	English (US)
Pages (from-to)	136-143
Number of pages	8
Journal	Separation and Purification Technology
Volume	161
DOIs	https://doi.org/10.1016/j.seppur.2016.01.046
State	Published - Mar 17 2016

All Science Journal Classification (ASJC) codes

Analytical Chemistry
Filtration and Separation

Keywords

Carboxylated MWCNTs
DCMD
Flux
Mass transfer coefficient
PTFE

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10.1016/j.seppur.2016.01.046

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title = "Flux enhancement in direct contact membrane distillation by implementing carbon nanotube immobilized PTFE membrane",

abstract = "Carbon nanotube (CNT) enhanced direct contact membrane distillation (DCMD) is presented for water desalination. We investigated the immobilization of CNTs on a polytetrafluoroethylene (PTFE) membrane. The presence of CNTs on the hydrophobic membrane favorably altered the water-membrane interactions to promote water vapor transport while preventing salt water penetration into the membrane pores. For a salt concentration of 34,000 mg l-1 and at 70 °C, the CNT incorporation led to a 54% enhancement in permeate flux, which was as high as 69 kg/m2 h.",

keywords = "Carboxylated MWCNTs, DCMD, Flux, Mass transfer coefficient, PTFE",

author = "Madhuleena Bhadra and Sagar Roy and Somenath Mitra",

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T1 - Flux enhancement in direct contact membrane distillation by implementing carbon nanotube immobilized PTFE membrane

AU - Bhadra, Madhuleena

AU - Roy, Sagar

AU - Mitra, Somenath

PY - 2016/3/17

Y1 - 2016/3/17

N2 - Carbon nanotube (CNT) enhanced direct contact membrane distillation (DCMD) is presented for water desalination. We investigated the immobilization of CNTs on a polytetrafluoroethylene (PTFE) membrane. The presence of CNTs on the hydrophobic membrane favorably altered the water-membrane interactions to promote water vapor transport while preventing salt water penetration into the membrane pores. For a salt concentration of 34,000 mg l-1 and at 70 °C, the CNT incorporation led to a 54% enhancement in permeate flux, which was as high as 69 kg/m2 h.

AB - Carbon nanotube (CNT) enhanced direct contact membrane distillation (DCMD) is presented for water desalination. We investigated the immobilization of CNTs on a polytetrafluoroethylene (PTFE) membrane. The presence of CNTs on the hydrophobic membrane favorably altered the water-membrane interactions to promote water vapor transport while preventing salt water penetration into the membrane pores. For a salt concentration of 34,000 mg l-1 and at 70 °C, the CNT incorporation led to a 54% enhancement in permeate flux, which was as high as 69 kg/m2 h.

KW - Carboxylated MWCNTs

KW - DCMD

KW - Flux

KW - Mass transfer coefficient

KW - PTFE

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DO - 10.1016/j.seppur.2016.01.046

M3 - Article

AN - SCOPUS:84956942293

SN - 1383-5866

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SP - 136

EP - 143

JO - Separation and Purification Technology

JF - Separation and Purification Technology

ER -

Flux enhancement in direct contact membrane distillation by implementing carbon nanotube immobilized PTFE membrane

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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