High-Performance Capacitive Deionization Disinfection of Water with Graphene Oxide-graft-Quaternized Chitosan Nanohybrid Electrode Coating

Yilei Wang, A.G. El-Deen, Peng Li, B.H.L. Oh, Zanru Guo, Mya Mya Khin, Y.S. Vikhe, Jing Wang, R.G. Hu, R.M. Boom, K.A. Kline, D.L. Becker, Hongwei Duan, M.B. Chan-Park

Research output: Contribution to journalArticleAcademicpeer-review

41 Citations (Scopus)

Abstract

Water disinfection materials should ideally be broad-spectrum-active, nonleachable, and noncontaminating to the liquid needing sterilization. Herein, we demonstrate a high-performance capacitive deionization disinfection (CDID) electrode made by coating an activated carbon (AC) electrode with cationic nanohybrids of graphene oxide-graft-quaternized chitosan (GO-QC). Our GO-QC/AC CDID electrode can achieve at least 99.9999% killing (i.e., 6 log reduction) of Escherichia coli in water flowing continuously through the CDID cell. Without the GO-QC coating, the AC electrode alone cannot kill the bacteria and adsorbs a much smaller fraction (4 CFU mL-1 bacteria), the GO-QC/AC electrodes can kill 99.99% of the E. coli in water for 5 h. The disinfecting GO-QC is securely attached on the AC electrode surface, so that it is noncontaminating to water, unlike many other chemicals used today. The GO-QC nanohybrids have excellent intrinsic antimicrobial properties in suspension form. Further, the GO component contributes toward the needed surface conductivity of the CDID electrode. This CDID process offers an economical method toward ultrafast, contaminant-free, and continuous killing of bacteria in biocontaminated water. The proposed strategy introduces a green in situ disinfectant approach for water purification.

LanguageEnglish
Pages10142-10157
JournalACS Nano
Volume9
Issue number10
DOIs
Publication statusPublished - 2015

Fingerprint

deionization
Graphite
Disinfection
Chitosan
Grafts
Oxides
Graphene
graphene
activated carbon
Activated carbon
coatings
Coatings
Electrodes
electrodes
oxides
Water
water
bacteria
Bacteria
Escherichia coli

Keywords

  • antimicrobial
  • capacitive deionization
  • cationic
  • contact-active
  • graphene oxide
  • quaternary chitosan
  • water disinfection

Cite this

Wang, Yilei ; El-Deen, A.G. ; Li, Peng ; Oh, B.H.L. ; Guo, Zanru ; Khin, Mya Mya ; Vikhe, Y.S. ; Wang, Jing ; Hu, R.G. ; Boom, R.M. ; Kline, K.A. ; Becker, D.L. ; Duan, Hongwei ; Chan-Park, M.B. / High-Performance Capacitive Deionization Disinfection of Water with Graphene Oxide-graft-Quaternized Chitosan Nanohybrid Electrode Coating. In: ACS Nano. 2015 ; Vol. 9, No. 10. pp. 10142-10157.
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abstract = "Water disinfection materials should ideally be broad-spectrum-active, nonleachable, and noncontaminating to the liquid needing sterilization. Herein, we demonstrate a high-performance capacitive deionization disinfection (CDID) electrode made by coating an activated carbon (AC) electrode with cationic nanohybrids of graphene oxide-graft-quaternized chitosan (GO-QC). Our GO-QC/AC CDID electrode can achieve at least 99.9999{\%} killing (i.e., 6 log reduction) of Escherichia coli in water flowing continuously through the CDID cell. Without the GO-QC coating, the AC electrode alone cannot kill the bacteria and adsorbs a much smaller fraction (4 CFU mL-1 bacteria), the GO-QC/AC electrodes can kill 99.99{\%} of the E. coli in water for 5 h. The disinfecting GO-QC is securely attached on the AC electrode surface, so that it is noncontaminating to water, unlike many other chemicals used today. The GO-QC nanohybrids have excellent intrinsic antimicrobial properties in suspension form. Further, the GO component contributes toward the needed surface conductivity of the CDID electrode. This CDID process offers an economical method toward ultrafast, contaminant-free, and continuous killing of bacteria in biocontaminated water. The proposed strategy introduces a green in situ disinfectant approach for water purification.",
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author = "Yilei Wang and A.G. El-Deen and Peng Li and B.H.L. Oh and Zanru Guo and Khin, {Mya Mya} and Y.S. Vikhe and Jing Wang and R.G. Hu and R.M. Boom and K.A. Kline and D.L. Becker and Hongwei Duan and M.B. Chan-Park",
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doi = "10.1021/acsnano.5b03763",
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Wang, Y, El-Deen, AG, Li, P, Oh, BHL, Guo, Z, Khin, MM, Vikhe, YS, Wang, J, Hu, RG, Boom, RM, Kline, KA, Becker, DL, Duan, H & Chan-Park, MB 2015, 'High-Performance Capacitive Deionization Disinfection of Water with Graphene Oxide-graft-Quaternized Chitosan Nanohybrid Electrode Coating', ACS Nano, vol. 9, no. 10, pp. 10142-10157. https://doi.org/10.1021/acsnano.5b03763

High-Performance Capacitive Deionization Disinfection of Water with Graphene Oxide-graft-Quaternized Chitosan Nanohybrid Electrode Coating. / Wang, Yilei; El-Deen, A.G.; Li, Peng; Oh, B.H.L.; Guo, Zanru; Khin, Mya Mya; Vikhe, Y.S.; Wang, Jing; Hu, R.G.; Boom, R.M.; Kline, K.A.; Becker, D.L.; Duan, Hongwei; Chan-Park, M.B.

In: ACS Nano, Vol. 9, No. 10, 2015, p. 10142-10157.

Research output: Contribution to journalArticleAcademicpeer-review

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T1 - High-Performance Capacitive Deionization Disinfection of Water with Graphene Oxide-graft-Quaternized Chitosan Nanohybrid Electrode Coating

AU - Wang, Yilei

AU - El-Deen, A.G.

AU - Li, Peng

AU - Oh, B.H.L.

AU - Guo, Zanru

AU - Khin, Mya Mya

AU - Vikhe, Y.S.

AU - Wang, Jing

AU - Hu, R.G.

AU - Boom, R.M.

AU - Kline, K.A.

AU - Becker, D.L.

AU - Duan, Hongwei

AU - Chan-Park, M.B.

PY - 2015

Y1 - 2015

N2 - Water disinfection materials should ideally be broad-spectrum-active, nonleachable, and noncontaminating to the liquid needing sterilization. Herein, we demonstrate a high-performance capacitive deionization disinfection (CDID) electrode made by coating an activated carbon (AC) electrode with cationic nanohybrids of graphene oxide-graft-quaternized chitosan (GO-QC). Our GO-QC/AC CDID electrode can achieve at least 99.9999% killing (i.e., 6 log reduction) of Escherichia coli in water flowing continuously through the CDID cell. Without the GO-QC coating, the AC electrode alone cannot kill the bacteria and adsorbs a much smaller fraction (4 CFU mL-1 bacteria), the GO-QC/AC electrodes can kill 99.99% of the E. coli in water for 5 h. The disinfecting GO-QC is securely attached on the AC electrode surface, so that it is noncontaminating to water, unlike many other chemicals used today. The GO-QC nanohybrids have excellent intrinsic antimicrobial properties in suspension form. Further, the GO component contributes toward the needed surface conductivity of the CDID electrode. This CDID process offers an economical method toward ultrafast, contaminant-free, and continuous killing of bacteria in biocontaminated water. The proposed strategy introduces a green in situ disinfectant approach for water purification.

AB - Water disinfection materials should ideally be broad-spectrum-active, nonleachable, and noncontaminating to the liquid needing sterilization. Herein, we demonstrate a high-performance capacitive deionization disinfection (CDID) electrode made by coating an activated carbon (AC) electrode with cationic nanohybrids of graphene oxide-graft-quaternized chitosan (GO-QC). Our GO-QC/AC CDID electrode can achieve at least 99.9999% killing (i.e., 6 log reduction) of Escherichia coli in water flowing continuously through the CDID cell. Without the GO-QC coating, the AC electrode alone cannot kill the bacteria and adsorbs a much smaller fraction (4 CFU mL-1 bacteria), the GO-QC/AC electrodes can kill 99.99% of the E. coli in water for 5 h. The disinfecting GO-QC is securely attached on the AC electrode surface, so that it is noncontaminating to water, unlike many other chemicals used today. The GO-QC nanohybrids have excellent intrinsic antimicrobial properties in suspension form. Further, the GO component contributes toward the needed surface conductivity of the CDID electrode. This CDID process offers an economical method toward ultrafast, contaminant-free, and continuous killing of bacteria in biocontaminated water. The proposed strategy introduces a green in situ disinfectant approach for water purification.

KW - antimicrobial

KW - capacitive deionization

KW - cationic

KW - contact-active

KW - graphene oxide

KW - quaternary chitosan

KW - water disinfection

U2 - 10.1021/acsnano.5b03763

DO - 10.1021/acsnano.5b03763

M3 - Article

VL - 9

SP - 10142

EP - 10157

JO - ACS Nano

T2 - ACS Nano

JF - ACS Nano

SN - 1936-0851

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ER -