Brackish water desalination by capacitive deionization using zinc oxide micro/nanostructures grafted on activated carbon cloth electrodes

Myo Tay Zar Myint; Salim H. Al-Harthi; Joydeep Dutta

doi:10.1016/j.desal.2014.03.037

Brackish water desalination by capacitive deionization using zinc oxide micro/nanostructures grafted on activated carbon cloth electrodes

Myo Tay Zar Myint, Salim H. Al-Harthi, Joydeep Dutta^*

^*Corresponding author for this work

Physics

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

94 Citations (Scopus)

Abstract

The fabrication of electrodes grafted with zinc oxide (ZnO) micro/nanomaterials (nanoparticles, nanorods, microsheets and microspheres) on activated carbon cloth (ACC) for water desalination by capacitive deionization (CDI) is reported. ZnO micro/nanomaterials were hydrothermally grown on ACC and used as electrodes in a flow cell for brackish water desalination. Morphology of ZnO structures on ACC surfaces was found to affect salt removal efficiency. The desalination experiments were carried out using 100ppm sodium chloride (NaCl) solution employing a flow rate of 2ml/min in a parallel plate configuration with an electrode area of ~8.4cm² under an applied potential of 1.2V (DC). Enhanced salt removal efficiency of 22% for ZnO microsheet grafted ACC electrodes as well as ZnO nanorod grafted ACC electrodes was achieved.

Original language	English
Pages (from-to)	236-242
Number of pages	7
Journal	Desalination
Volume	344
DOIs	https://doi.org/10.1016/j.desal.2014.03.037
Publication status	Published - Jul 1 2014

Keywords

Capacitive deionization
Desalination
Microstructure
Nanoparticle
Nanorod
Zinc oxide

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Materials Science(all)
Water Science and Technology
Mechanical Engineering

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title = "Brackish water desalination by capacitive deionization using zinc oxide micro/nanostructures grafted on activated carbon cloth electrodes",

abstract = "The fabrication of electrodes grafted with zinc oxide (ZnO) micro/nanomaterials (nanoparticles, nanorods, microsheets and microspheres) on activated carbon cloth (ACC) for water desalination by capacitive deionization (CDI) is reported. ZnO micro/nanomaterials were hydrothermally grown on ACC and used as electrodes in a flow cell for brackish water desalination. Morphology of ZnO structures on ACC surfaces was found to affect salt removal efficiency. The desalination experiments were carried out using 100ppm sodium chloride (NaCl) solution employing a flow rate of 2ml/min in a parallel plate configuration with an electrode area of ~8.4cm2 under an applied potential of 1.2V (DC). Enhanced salt removal efficiency of 22% for ZnO microsheet grafted ACC electrodes as well as ZnO nanorod grafted ACC electrodes was achieved.",

keywords = "Capacitive deionization, Desalination, Microstructure, Nanoparticle, Nanorod, Zinc oxide",

author = "Myint, {Myo Tay Zar} and Al-Harthi, {Salim H.} and Joydeep Dutta",

note = "Funding Information: The authors would like to acknowledge partial financial support from the Chair in Nanotechnology , The Research Council (TRC) , the Sultanate of Oman and the Centre of Excellence in Nanotechnology at the Asian Institute of Technology, Thailand . ",

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doi = "10.1016/j.desal.2014.03.037",

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AU - Myint, Myo Tay Zar

AU - Al-Harthi, Salim H.

AU - Dutta, Joydeep

N1 - Funding Information: The authors would like to acknowledge partial financial support from the Chair in Nanotechnology , The Research Council (TRC) , the Sultanate of Oman and the Centre of Excellence in Nanotechnology at the Asian Institute of Technology, Thailand .

PY - 2014/7/1

Y1 - 2014/7/1

N2 - The fabrication of electrodes grafted with zinc oxide (ZnO) micro/nanomaterials (nanoparticles, nanorods, microsheets and microspheres) on activated carbon cloth (ACC) for water desalination by capacitive deionization (CDI) is reported. ZnO micro/nanomaterials were hydrothermally grown on ACC and used as electrodes in a flow cell for brackish water desalination. Morphology of ZnO structures on ACC surfaces was found to affect salt removal efficiency. The desalination experiments were carried out using 100ppm sodium chloride (NaCl) solution employing a flow rate of 2ml/min in a parallel plate configuration with an electrode area of ~8.4cm2 under an applied potential of 1.2V (DC). Enhanced salt removal efficiency of 22% for ZnO microsheet grafted ACC electrodes as well as ZnO nanorod grafted ACC electrodes was achieved.

AB - The fabrication of electrodes grafted with zinc oxide (ZnO) micro/nanomaterials (nanoparticles, nanorods, microsheets and microspheres) on activated carbon cloth (ACC) for water desalination by capacitive deionization (CDI) is reported. ZnO micro/nanomaterials were hydrothermally grown on ACC and used as electrodes in a flow cell for brackish water desalination. Morphology of ZnO structures on ACC surfaces was found to affect salt removal efficiency. The desalination experiments were carried out using 100ppm sodium chloride (NaCl) solution employing a flow rate of 2ml/min in a parallel plate configuration with an electrode area of ~8.4cm2 under an applied potential of 1.2V (DC). Enhanced salt removal efficiency of 22% for ZnO microsheet grafted ACC electrodes as well as ZnO nanorod grafted ACC electrodes was achieved.

KW - Capacitive deionization

KW - Desalination

KW - Microstructure

KW - Nanoparticle

KW - Nanorod

KW - Zinc oxide

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JO - Desalination

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ER -

Brackish water desalination by capacitive deionization using zinc oxide micro/nanostructures grafted on activated carbon cloth electrodes

Abstract

Keywords

ASJC Scopus subject areas

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