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High performance and toxicity assessment of Ta3N5 nanotubes for photoelectrochemical water splitting.

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Title: High performance and toxicity assessment of Ta3N5 nanotubes for photoelectrochemical water splitting.
Authors: Xu, Kaiqi1 (AUTHOR), Chatzitakis, Athanasios1 (AUTHOR) a.e.chatzitakis@smn.uio.no, Risbakk, Sanne2 (AUTHOR), Yang, Mingyi2,3 (AUTHOR), Backe, Paul Hoff2,3 (AUTHOR), Grandcolas, Mathieu4 (AUTHOR), Bjørås, Magnar3,5 (AUTHOR), Norby, Truls1 (AUTHOR) truls.norby@kjemi.uio.no
Source: Catalysis Today. Feb2021, Vol. 361, p57-62. 6p.
Subjects: Nanotubes, Nanostructured materials, Cell lines, HeLa cells, Water, Electroplating
Abstract: • Ta 3 N 5 nanotubes are surface modified with a composite Co-based cocatalyst. • Co(OH) x /CoPi composite cocatalyst is electrodeposited and optimized. • Ta 3 N 5 nanotubes optimized with Co(OH) x /CoPi reached 6.3 mA/cm2 under 1 Sun. • Ta 3 N 5 nanotubes are non-toxic towards human cell line HeLa S3. In this work, Co-based cocatalysts are electrodeposited on mesoporous Ta 3 N 5 nanotubes. The electrodeposition time is varied and the optimized photoelectrode reaches a photocurrent density of 6.3 mA/cm2 at 1.23 V vs. SHE, under simulated solar illumination of 1 Sun, in 1 M NaOH. The best performing electrode, apart from the high photocurrent density, shows improved stability under intense photoelectrochemical water splitting conditions. The dual function of the cocatalyst to improve not only the photoelectrochemical performance, but also the stability, is highlighted. Moreover, we adopted a simple protocol to assess the toxicity of Co and Ta contained nanostructured materials (representing used photoelectrodes) employing the human cell line HeLa S3 as target cells. [ABSTRACT FROM AUTHOR]
Copyright of Catalysis Today is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 147404365
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  Data: High performance and toxicity assessment of Ta3N5 nanotubes for photoelectrochemical water splitting.
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  Data: <searchLink fieldCode="AR" term="%22Xu%2C+Kaiqi%22">Xu, Kaiqi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chatzitakis%2C+Athanasios%22">Chatzitakis, Athanasios</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> a.e.chatzitakis@smn.uio.no</i><br /><searchLink fieldCode="AR" term="%22Risbakk%2C+Sanne%22">Risbakk, Sanne</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Mingyi%22">Yang, Mingyi</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Backe%2C+Paul+Hoff%22">Backe, Paul Hoff</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Grandcolas%2C+Mathieu%22">Grandcolas, Mathieu</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bjørås%2C+Magnar%22">Bjørås, Magnar</searchLink><relatesTo>3,5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Norby%2C+Truls%22">Norby, Truls</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> truls.norby@kjemi.uio.no</i>
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  Data: <searchLink fieldCode="JN" term="%22Catalysis+Today%22">Catalysis Today</searchLink>. Feb2021, Vol. 361, p57-62. 6p.
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  Data: <searchLink fieldCode="DE" term="%22Nanotubes%22">Nanotubes</searchLink><br /><searchLink fieldCode="DE" term="%22Nanostructured+materials%22">Nanostructured materials</searchLink><br /><searchLink fieldCode="DE" term="%22Cell+lines%22">Cell lines</searchLink><br /><searchLink fieldCode="DE" term="%22HeLa+cells%22">HeLa cells</searchLink><br /><searchLink fieldCode="DE" term="%22Water%22">Water</searchLink><br /><searchLink fieldCode="DE" term="%22Electroplating%22">Electroplating</searchLink>
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  Label: Abstract
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  Data: • Ta 3 N 5 nanotubes are surface modified with a composite Co-based cocatalyst. • Co(OH) x /CoPi composite cocatalyst is electrodeposited and optimized. • Ta 3 N 5 nanotubes optimized with Co(OH) x /CoPi reached 6.3 mA/cm2 under 1 Sun. • Ta 3 N 5 nanotubes are non-toxic towards human cell line HeLa S3. In this work, Co-based cocatalysts are electrodeposited on mesoporous Ta 3 N 5 nanotubes. The electrodeposition time is varied and the optimized photoelectrode reaches a photocurrent density of 6.3 mA/cm2 at 1.23 V vs. SHE, under simulated solar illumination of 1 Sun, in 1 M NaOH. The best performing electrode, apart from the high photocurrent density, shows improved stability under intense photoelectrochemical water splitting conditions. The dual function of the cocatalyst to improve not only the photoelectrochemical performance, but also the stability, is highlighted. Moreover, we adopted a simple protocol to assess the toxicity of Co and Ta contained nanostructured materials (representing used photoelectrodes) employing the human cell line HeLa S3 as target cells. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Catalysis Today is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.cattod.2019.12.031
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        Text: English
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      – SubjectFull: Nanostructured materials
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      – SubjectFull: Cell lines
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      – SubjectFull: HeLa cells
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      – SubjectFull: Water
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      – SubjectFull: Electroplating
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      – TitleFull: High performance and toxicity assessment of Ta3N5 nanotubes for photoelectrochemical water splitting.
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              Text: Feb2021
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              Y: 2021
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