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Fe(3)O(4)/granular activated carbon as an efficient three-dimensional electrode to enhance the microbial electrosynthesis of acetate from CO(2)
Microbial electrosynthesis (MES) allows the transformation of CO(2) into value-added products by coupling with renewable energy. The enhancement in the microbial activity and electron transfer rate via a new electrode modification method is essential for developing MES. Here, three groups of granula...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9073640/ https://www.ncbi.nlm.nih.gov/pubmed/35529973 http://dx.doi.org/10.1039/c9ra06255f |
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author | Zhu, Hao Dong, Zhiwei Huang, Qiong Song, Tian-shun Xie, Jingjing |
author_facet | Zhu, Hao Dong, Zhiwei Huang, Qiong Song, Tian-shun Xie, Jingjing |
author_sort | Zhu, Hao |
collection | PubMed |
description | Microbial electrosynthesis (MES) allows the transformation of CO(2) into value-added products by coupling with renewable energy. The enhancement in the microbial activity and electron transfer rate via a new electrode modification method is essential for developing MES. Here, three groups of granular activated carbon decorated by Fe(3)O(4) (Fe(3)O(4)/GAC) with mass fractions of 23%, 38% and 50% were prepared and compared with bare GAC. The volumetric acetate production rate of MES with Fe(3)O(4)/GAC-38% was the highest (0.171 g L(−1) d(−1)), which was 1.4 times higher that of the control (bare GAC), and the final acetate concentration reached 5.14 g L(−1) within 30 days. Linear sweep voltammetry and microbial community analyses suggested that Fe(3)O(4)/GAC facilitates extracellular electron transfer and improves the enrichment of electrochemically active bacteria. Fe(3)O(4)/GAC is an effective three-dimensional electrode material that enhances biofilm activity on GAC and improves MES efficiency. |
format | Online Article Text |
id | pubmed-9073640 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90736402022-05-06 Fe(3)O(4)/granular activated carbon as an efficient three-dimensional electrode to enhance the microbial electrosynthesis of acetate from CO(2) Zhu, Hao Dong, Zhiwei Huang, Qiong Song, Tian-shun Xie, Jingjing RSC Adv Chemistry Microbial electrosynthesis (MES) allows the transformation of CO(2) into value-added products by coupling with renewable energy. The enhancement in the microbial activity and electron transfer rate via a new electrode modification method is essential for developing MES. Here, three groups of granular activated carbon decorated by Fe(3)O(4) (Fe(3)O(4)/GAC) with mass fractions of 23%, 38% and 50% were prepared and compared with bare GAC. The volumetric acetate production rate of MES with Fe(3)O(4)/GAC-38% was the highest (0.171 g L(−1) d(−1)), which was 1.4 times higher that of the control (bare GAC), and the final acetate concentration reached 5.14 g L(−1) within 30 days. Linear sweep voltammetry and microbial community analyses suggested that Fe(3)O(4)/GAC facilitates extracellular electron transfer and improves the enrichment of electrochemically active bacteria. Fe(3)O(4)/GAC is an effective three-dimensional electrode material that enhances biofilm activity on GAC and improves MES efficiency. The Royal Society of Chemistry 2019-10-23 /pmc/articles/PMC9073640/ /pubmed/35529973 http://dx.doi.org/10.1039/c9ra06255f Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/ |
spellingShingle | Chemistry Zhu, Hao Dong, Zhiwei Huang, Qiong Song, Tian-shun Xie, Jingjing Fe(3)O(4)/granular activated carbon as an efficient three-dimensional electrode to enhance the microbial electrosynthesis of acetate from CO(2) |
title | Fe(3)O(4)/granular activated carbon as an efficient three-dimensional electrode to enhance the microbial electrosynthesis of acetate from CO(2) |
title_full | Fe(3)O(4)/granular activated carbon as an efficient three-dimensional electrode to enhance the microbial electrosynthesis of acetate from CO(2) |
title_fullStr | Fe(3)O(4)/granular activated carbon as an efficient three-dimensional electrode to enhance the microbial electrosynthesis of acetate from CO(2) |
title_full_unstemmed | Fe(3)O(4)/granular activated carbon as an efficient three-dimensional electrode to enhance the microbial electrosynthesis of acetate from CO(2) |
title_short | Fe(3)O(4)/granular activated carbon as an efficient three-dimensional electrode to enhance the microbial electrosynthesis of acetate from CO(2) |
title_sort | fe(3)o(4)/granular activated carbon as an efficient three-dimensional electrode to enhance the microbial electrosynthesis of acetate from co(2) |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9073640/ https://www.ncbi.nlm.nih.gov/pubmed/35529973 http://dx.doi.org/10.1039/c9ra06255f |
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