Mechanistic details of the catalytic degradation of methylene blue by hydrogen peroxide in basic solution. The unexpected innocence of percarbonate
Trocha A, Impert O, Katafias A, van Eldik R (2021)
Publication Type: Journal article
Publication year: 2021
Journal
Book Volume: 210
DOI: 10.1016/j.poly.2021.115507
Abstract
Recently it was shown that the Mn-III(TPPS) - hydrogen peroxide system in alkaline media exhibits a vigorous catalase activity. Intermediate (TPPS)Mn-V = O formed in a catalytic cycle in the system is an efficient degrading agent for a model dye, Orange II, in carbonate buffers. The high efficacy of the catalyst under these conditions is attributed to the generation of strongly oxidising percarbonate ions, a commonly known effect. The detailed study on the Mn-III(TPPS) catalysed rapid degradation of methylene blue by hydrogen peroxide, performed using stopped-flow electronic spectroscopy as a function of the catalyst, hydrogen peroxide, pH and carbonate con-centrations reported herein, has surprisingly evidenced a minor role of percarbonate in the overall catalytic cycle.
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Poland (PL)How to cite
APA:
Trocha, A., Impert, O., Katafias, A., & van Eldik, R. (2021). Mechanistic details of the catalytic degradation of methylene blue by hydrogen peroxide in basic solution. The unexpected innocence of percarbonate. Polyhedron, 210. https://doi.org/10.1016/j.poly.2021.115507
MLA:
Trocha, Aniela, et al. "Mechanistic details of the catalytic degradation of methylene blue by hydrogen peroxide in basic solution. The unexpected innocence of percarbonate." Polyhedron 210 (2021).
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