Removal of bisphenol A from aqueous solutions by electrochemical polymerization on a carbon aerogel electrode

Chia Hung Hou, Shih Ching Huang, Pei-Hsin Chou, Walter Den

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

This study investigates the removal of bisphenol A from aqueous solutions based on electrochemical polymerization on a carbon aerogel electrode via electrochemical oxidation. The electrochemical behaviors of bisphenol A on the glassy carbon and carbon aerogel electrodes were determined using cyclic voltammetry measurements. Results show that the electrochemical oxidation of bisphenol A leads to the formation of electropolymerized poly(bisphenol A) film on the electrode surface, accompanied by the passivation of carbon electrodes. The electrochemical removal of bisphenol A was carried out using a carbon aerogel electrode with a large specific surface area (445 m2/g) and mesoporosity. By using constant potentials or a cyclic potential in the range of 0.0-0.8 V, the electrochemical polymerization via phenoxy radicals can be successfully applied to separate bisphenol A from water. For treating 0.1 mM bisphenol A in neutral pH solution, the removal capacity using potential cycling can be enhanced to 0.029 mmol/g, which was much higher than that at open-circuit adsorption (0.010 mmol/g). Additionally, the generation of toxic intermediates could be suppressed during the polymerization process. Therefore, the results manifest the promising potential of electrochemical polymerization to remove bisphenol A at low concentrations as a means of water purification.

Original languageEnglish
Pages (from-to)103-108
Number of pages6
JournalJournal of the Taiwan Institute of Chemical Engineers
Volume51
DOIs
Publication statusPublished - 2015 Jun 1

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Aerogels
Electropolymerization
Carbon
Electrodes
Electrochemical oxidation
Glassy carbon
Passivation
Specific surface area
Cyclic voltammetry
Purification
Water
Polymerization
bisphenol A
Poisons
Adsorption
Networks (circuits)

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

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title = "Removal of bisphenol A from aqueous solutions by electrochemical polymerization on a carbon aerogel electrode",
abstract = "This study investigates the removal of bisphenol A from aqueous solutions based on electrochemical polymerization on a carbon aerogel electrode via electrochemical oxidation. The electrochemical behaviors of bisphenol A on the glassy carbon and carbon aerogel electrodes were determined using cyclic voltammetry measurements. Results show that the electrochemical oxidation of bisphenol A leads to the formation of electropolymerized poly(bisphenol A) film on the electrode surface, accompanied by the passivation of carbon electrodes. The electrochemical removal of bisphenol A was carried out using a carbon aerogel electrode with a large specific surface area (445 m2/g) and mesoporosity. By using constant potentials or a cyclic potential in the range of 0.0-0.8 V, the electrochemical polymerization via phenoxy radicals can be successfully applied to separate bisphenol A from water. For treating 0.1 mM bisphenol A in neutral pH solution, the removal capacity using potential cycling can be enhanced to 0.029 mmol/g, which was much higher than that at open-circuit adsorption (0.010 mmol/g). Additionally, the generation of toxic intermediates could be suppressed during the polymerization process. Therefore, the results manifest the promising potential of electrochemical polymerization to remove bisphenol A at low concentrations as a means of water purification.",
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Removal of bisphenol A from aqueous solutions by electrochemical polymerization on a carbon aerogel electrode. / Hou, Chia Hung; Huang, Shih Ching; Chou, Pei-Hsin; Den, Walter.

In: Journal of the Taiwan Institute of Chemical Engineers, Vol. 51, 01.06.2015, p. 103-108.

Research output: Contribution to journalArticle

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