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

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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 languageEnglish
Pages (from-to)236-242
Number of pages7
JournalDesalination
Volume344
DOIs
Publication statusPublished - Jul 1 2014

Fingerprint

Zinc Oxide
Desalination
Zinc oxide
brackish water
Activated carbon
activated carbon
Nanostructures
electrode
zinc
oxide
Electrodes
Salt removal
Water
Nanorods
Nanostructured materials
salt
Sodium chloride
sodium chloride
Microspheres
Sodium Chloride

Keywords

  • Capacitive deionization
  • Desalination
  • Microstructure
  • Nanoparticle
  • Nanorod
  • Zinc oxide

ASJC Scopus subject areas

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

Cite this

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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",
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T1 - Brackish water desalination by capacitive deionization using zinc oxide micro/nanostructures grafted on activated carbon cloth electrodes

AU - Myint, Myo Tay Zar

AU - Al-Harthi, Salim H.

AU - Dutta, Joydeep

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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.

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