Anion-selective capacitive deionization using functionalized rGO thin films

H. C. Cheng; P. A. Chen; C. Y. Peng; S. H. Liu; Y. J. Tuan; Hong Paul Wang

doi:10.1557/s43579-023-00465-9

Anion-selective capacitive deionization using functionalized rGO thin films

H. C. Cheng, P. A. Chen, C. Y. Peng, S. H. Liu, Y. J. Tuan, Hong Paul Wang

Department of Environmental Engineering

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

Abstract

Drinking water shortage is worsening. Capacitive deionization (CDI) of saltwater has gained attention due to its low energy consumption and environmental friendliness. A single anion exchange membrane (AEM) can selectively move anions to positive electrodes for better desalination performances. Poly(diallyldimethylammonium chloride)-functionalized reduced graphene oxide (PrGO) serves as an AEM for CDI. The AC and PrGO coated AC electrode pair (AC‖PrGO/AC) for CDI of saltwater under + 1.5 V for 1 h reaches a high optimized-salt removal and electrosorption capacity. This work presents the feasibility using the high-efficiency and facile PrGO anion-selective thin film layer served as an AEM analog for a simplified and low-cost membrane-CDI process to enhance desalination performances for potential water recycling and reuse from salt, inorganic waste or metal-contaminated ground waters. Graphical abstract: [Figure not available: see fulltext.]

Original language	English
Pages (from-to)	1342-1348
Number of pages	7
Journal	MRS Communications
Volume	13
Issue number	6
DOIs	https://doi.org/10.1557/s43579-023-00465-9
Publication status	Published - 2023 Dec

All Science Journal Classification (ASJC) codes

General Materials Science

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1557/s43579-023-00465-9

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title = "Anion-selective capacitive deionization using functionalized rGO thin films",

abstract = "Drinking water shortage is worsening. Capacitive deionization (CDI) of saltwater has gained attention due to its low energy consumption and environmental friendliness. A single anion exchange membrane (AEM) can selectively move anions to positive electrodes for better desalination performances. Poly(diallyldimethylammonium chloride)-functionalized reduced graphene oxide (PrGO) serves as an AEM for CDI. The AC and PrGO coated AC electrode pair (AC‖PrGO/AC) for CDI of saltwater under + 1.5 V for 1 h reaches a high optimized-salt removal and electrosorption capacity. This work presents the feasibility using the high-efficiency and facile PrGO anion-selective thin film layer served as an AEM analog for a simplified and low-cost membrane-CDI process to enhance desalination performances for potential water recycling and reuse from salt, inorganic waste or metal-contaminated ground waters. Graphical abstract: [Figure not available: see fulltext.]",

author = "Cheng, {H. C.} and Chen, {P. A.} and Peng, {C. Y.} and Liu, {S. H.} and Tuan, {Y. J.} and Wang, {Hong Paul}",

note = "Publisher Copyright: {\textcopyright} 2023, The Author(s), under exclusive licence to The Materials Research Society.",

year = "2023",

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doi = "10.1557/s43579-023-00465-9",

language = "English",

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TY - JOUR

T1 - Anion-selective capacitive deionization using functionalized rGO thin films

AU - Cheng, H. C.

AU - Chen, P. A.

AU - Peng, C. Y.

AU - Liu, S. H.

AU - Tuan, Y. J.

AU - Wang, Hong Paul

PY - 2023/12

Y1 - 2023/12

N2 - Drinking water shortage is worsening. Capacitive deionization (CDI) of saltwater has gained attention due to its low energy consumption and environmental friendliness. A single anion exchange membrane (AEM) can selectively move anions to positive electrodes for better desalination performances. Poly(diallyldimethylammonium chloride)-functionalized reduced graphene oxide (PrGO) serves as an AEM for CDI. The AC and PrGO coated AC electrode pair (AC‖PrGO/AC) for CDI of saltwater under + 1.5 V for 1 h reaches a high optimized-salt removal and electrosorption capacity. This work presents the feasibility using the high-efficiency and facile PrGO anion-selective thin film layer served as an AEM analog for a simplified and low-cost membrane-CDI process to enhance desalination performances for potential water recycling and reuse from salt, inorganic waste or metal-contaminated ground waters. Graphical abstract: [Figure not available: see fulltext.]

AB - Drinking water shortage is worsening. Capacitive deionization (CDI) of saltwater has gained attention due to its low energy consumption and environmental friendliness. A single anion exchange membrane (AEM) can selectively move anions to positive electrodes for better desalination performances. Poly(diallyldimethylammonium chloride)-functionalized reduced graphene oxide (PrGO) serves as an AEM for CDI. The AC and PrGO coated AC electrode pair (AC‖PrGO/AC) for CDI of saltwater under + 1.5 V for 1 h reaches a high optimized-salt removal and electrosorption capacity. This work presents the feasibility using the high-efficiency and facile PrGO anion-selective thin film layer served as an AEM analog for a simplified and low-cost membrane-CDI process to enhance desalination performances for potential water recycling and reuse from salt, inorganic waste or metal-contaminated ground waters. Graphical abstract: [Figure not available: see fulltext.]

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JO - MRS Communications

JF - MRS Communications

IS - 6

ER -

Anion-selective capacitive deionization using functionalized rGO thin films

Abstract

All Science Journal Classification (ASJC) codes

UN SDGs

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