Application of thermal lens microscopy (TLM) for measurement of Cr(VI) traces in wastewater

L. A. Hernández-Carabalí, E. Cedeño, A. Mantilla, S. Alvarado, H. Cabrera, A. M. Mansanares, A. Calderón, E. Marín

Research output: Contribution to journalArticleResearchpeer-review

Abstract

© 2018 Elsevier Ltd In this work, we demonstrate for the first time that Thermal Lens Microscopy technique (TLM) can be applied to monitor the dynamics of a photocatalytic process in-situ. The photocatalytic reduction of hexavalent chromium -Cr(VI)- in aqueous solution using CdS and irradiated with visible light is monitored by TLM. Since the values of Cr(VI) concentration obtained after the photocatalytic process were close to those imposed by the international regulations for drinking water, the use of TLM allowed its measurement with a better reliability than with UV spectroscopy, usually used in this kind of analysis.
Original languageAmerican English
Pages (from-to)305-309
Number of pages274
JournalJournal of Environmental Management
DOIs
StatePublished - 15 Feb 2019

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microscopy
Lenses
Microscopic examination
Wastewater
wastewater
Ultraviolet spectroscopy
Potable water
chromium
Chromium
aqueous solution
drinking water
spectroscopy
Hot Temperature
in situ
analysis
regulation

Cite this

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title = "Application of thermal lens microscopy (TLM) for measurement of Cr(VI) traces in wastewater",
abstract = "{\circledC} 2018 Elsevier Ltd In this work, we demonstrate for the first time that Thermal Lens Microscopy technique (TLM) can be applied to monitor the dynamics of a photocatalytic process in-situ. The photocatalytic reduction of hexavalent chromium -Cr(VI)- in aqueous solution using CdS and irradiated with visible light is monitored by TLM. Since the values of Cr(VI) concentration obtained after the photocatalytic process were close to those imposed by the international regulations for drinking water, the use of TLM allowed its measurement with a better reliability than with UV spectroscopy, usually used in this kind of analysis.",
author = "Hern{\'a}ndez-Carabal{\'i}, {L. A.} and E. Cede{\~n}o and A. Mantilla and S. Alvarado and H. Cabrera and Mansanares, {A. M.} and A. Calder{\'o}n and E. Mar{\'i}n",
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Application of thermal lens microscopy (TLM) for measurement of Cr(VI) traces in wastewater. / Hernández-Carabalí, L. A.; Cedeño, E.; Mantilla, A.; Alvarado, S.; Cabrera, H.; Mansanares, A. M.; Calderón, A.; Marín, E.

In: Journal of Environmental Management, 15.02.2019, p. 305-309.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Application of thermal lens microscopy (TLM) for measurement of Cr(VI) traces in wastewater

AU - Hernández-Carabalí, L. A.

AU - Cedeño, E.

AU - Mantilla, A.

AU - Alvarado, S.

AU - Cabrera, H.

AU - Mansanares, A. M.

AU - Calderón, A.

AU - Marín, E.

PY - 2019/2/15

Y1 - 2019/2/15

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AB - © 2018 Elsevier Ltd In this work, we demonstrate for the first time that Thermal Lens Microscopy technique (TLM) can be applied to monitor the dynamics of a photocatalytic process in-situ. The photocatalytic reduction of hexavalent chromium -Cr(VI)- in aqueous solution using CdS and irradiated with visible light is monitored by TLM. Since the values of Cr(VI) concentration obtained after the photocatalytic process were close to those imposed by the international regulations for drinking water, the use of TLM allowed its measurement with a better reliability than with UV spectroscopy, usually used in this kind of analysis.

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