Deciphering electron-shuttling characteristics of thionine-based textile dyes in microbial fuel cells

Bor Yann Chen; Bin Xu; Pei Lin Yueh; Ke Han; Lian Jie Qin; Chung Chuan Hsueh

doi:10.1016/j.jtice.2014.12.031

Deciphering electron-shuttling characteristics of thionine-based textile dyes in microbial fuel cells

Bor Yann Chen, Bin Xu, Pei Lin Yueh, Ke Han, Lian Jie Qin, Chung Chuan Hsueh

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

23 Scopus citations

Abstract

Prior studies indicated that OH and/or NH₂ substituent containing auxochrome compounds (e.g., 2-aminophenol and 1-amino-2-naphthol) could act as electron shuttles (ESs) to stimulate wastewater decolorization and bioelectricity generation in microbial fuel cells (MFCs). This study provided first-attempt to disclose how and why thionine-associated textile dyes (i.e., azure A and azure C) could also own such redox-mediating capabilities in MFCs. Due to the presence of iminium part as mediating group, N(CH₃)₂ or N(CH₃)H substituent could effectively mediate electron transport compared to NH₂ substituent for bioelectricity generation in MFCs. For dye-laden wastewater treatment, the presence of electron-mediating textile dyes (e.g., thionine, azure A and azure C) in MFCs is promising to stimulate biodegradation of organics and bioelectricity generation. With such ESs as stimulants, using MFC as operation strategy would be cost-effective for wastewater treatment as oxidation of organic pollutants could be automatically accelerated.

Original language	English
Pages (from-to)	63-70
Number of pages	8
Journal	Journal of the Taiwan Institute of Chemical Engineers
Volume	51
DOIs	https://doi.org/10.1016/j.jtice.2014.12.031
State	Published - 1 Jun 2015
Externally published	Yes

Keywords

Bioelectricity generation
Electron shuttles
Microbial fuel cells
Textile dyes

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10.1016/j.jtice.2014.12.031

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title = "Deciphering electron-shuttling characteristics of thionine-based textile dyes in microbial fuel cells",

abstract = "Prior studies indicated that OH and/or NH2 substituent containing auxochrome compounds (e.g., 2-aminophenol and 1-amino-2-naphthol) could act as electron shuttles (ESs) to stimulate wastewater decolorization and bioelectricity generation in microbial fuel cells (MFCs). This study provided first-attempt to disclose how and why thionine-associated textile dyes (i.e., azure A and azure C) could also own such redox-mediating capabilities in MFCs. Due to the presence of iminium part as mediating group, N(CH3)2 or N(CH3)H substituent could effectively mediate electron transport compared to NH2 substituent for bioelectricity generation in MFCs. For dye-laden wastewater treatment, the presence of electron-mediating textile dyes (e.g., thionine, azure A and azure C) in MFCs is promising to stimulate biodegradation of organics and bioelectricity generation. With such ESs as stimulants, using MFC as operation strategy would be cost-effective for wastewater treatment as oxidation of organic pollutants could be automatically accelerated.",

keywords = "Bioelectricity generation, Electron shuttles, Microbial fuel cells, Textile dyes",

author = "Chen, {Bor Yann} and Bin Xu and Yueh, {Pei Lin} and Ke Han and Qin, {Lian Jie} and Hsueh, {Chung Chuan}",

note = "Publisher Copyright: {\textcopyright} 2015 Taiwan Institute of Chemical Engineers.",

year = "2015",

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doi = "10.1016/j.jtice.2014.12.031",

language = "英语",

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AU - Chen, Bor Yann

AU - Xu, Bin

AU - Yueh, Pei Lin

AU - Han, Ke

AU - Qin, Lian Jie

AU - Hsueh, Chung Chuan

PY - 2015/6/1

Y1 - 2015/6/1

N2 - Prior studies indicated that OH and/or NH2 substituent containing auxochrome compounds (e.g., 2-aminophenol and 1-amino-2-naphthol) could act as electron shuttles (ESs) to stimulate wastewater decolorization and bioelectricity generation in microbial fuel cells (MFCs). This study provided first-attempt to disclose how and why thionine-associated textile dyes (i.e., azure A and azure C) could also own such redox-mediating capabilities in MFCs. Due to the presence of iminium part as mediating group, N(CH3)2 or N(CH3)H substituent could effectively mediate electron transport compared to NH2 substituent for bioelectricity generation in MFCs. For dye-laden wastewater treatment, the presence of electron-mediating textile dyes (e.g., thionine, azure A and azure C) in MFCs is promising to stimulate biodegradation of organics and bioelectricity generation. With such ESs as stimulants, using MFC as operation strategy would be cost-effective for wastewater treatment as oxidation of organic pollutants could be automatically accelerated.

AB - Prior studies indicated that OH and/or NH2 substituent containing auxochrome compounds (e.g., 2-aminophenol and 1-amino-2-naphthol) could act as electron shuttles (ESs) to stimulate wastewater decolorization and bioelectricity generation in microbial fuel cells (MFCs). This study provided first-attempt to disclose how and why thionine-associated textile dyes (i.e., azure A and azure C) could also own such redox-mediating capabilities in MFCs. Due to the presence of iminium part as mediating group, N(CH3)2 or N(CH3)H substituent could effectively mediate electron transport compared to NH2 substituent for bioelectricity generation in MFCs. For dye-laden wastewater treatment, the presence of electron-mediating textile dyes (e.g., thionine, azure A and azure C) in MFCs is promising to stimulate biodegradation of organics and bioelectricity generation. With such ESs as stimulants, using MFC as operation strategy would be cost-effective for wastewater treatment as oxidation of organic pollutants could be automatically accelerated.

KW - Bioelectricity generation

KW - Electron shuttles

KW - Microbial fuel cells

KW - Textile dyes

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ER -

Deciphering electron-shuttling characteristics of thionine-based textile dyes in microbial fuel cells

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