Accessing decavanadate chemistry with tris(hydroxymethyl)aminomethane, and evaluation of methylene blue bleaching

Missina, Juliana M., Leme, Luiza B. P., Postal, Kahoana, Santana, Francielli S., Hughes, David L., De Sá, Eduardo L., Ribeiro, Ronny R. and Nunes, Giovana G. (2020) Accessing decavanadate chemistry with tris(hydroxymethyl)aminomethane, and evaluation of methylene blue bleaching. Polyhedron, 180. ISSN 0277-5387

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Abstract

Two decavanadates (trisH)4[H2V10O28]·10H2O ( 1 ) and (trisH)6[V10O28] ( 2 ) have been synthesised from NaVO3 or V2O5 in an aqueous solution of tris(hydroxymethyl)aminomethane (tris). Bimetallic derivatives [Cu(OH2)5(trisH)]2[V10O28]·6H2O ( 3 ) and [Cu(OH2)3(2–amp)]2(trisH)2 [V10O28]·2H2O ( 4 ) were obtained by the addition of CuCl2 or CuCl2 / 2–amp (2–(aminomethyl)pyridine) to the route that gave 2 . The products were characterised by single-crystal X-ray diffractometry, thermogravimetric analysis, FTIR, Raman and EPR spectroscopies. Moreover, 4 was effective in bleaching a methylene blue (MB) solution under natural light in acidic media by either degradation of the dye or precipitation of a MB-decavanadate salt depending on the experimental conditions.

Item Type:	Article
Uncontrolled Keywords:	2-(aminomethyl)pyridine,alkoxides,cluster,copper(ii) complexes,crystal-structures,copper(ii),decavanadate,ion,methylene blue,oxidation,polyoxovanadate,raman,tris(hydroxymethyl)aminomethane,vanadium,vibrational-spectra
Faculty \ School:	Faculty of Science > School of Chemistry
Related URLs:	https://linkinghub.elsevier.com/retrieve...
Depositing User:	LivePure Connector
Date Deposited:	07 Feb 2020 05:10
Last Modified:	22 Oct 2022 05:49
URI:	https://ueaeprints.uea.ac.uk/id/eprint/73999
DOI:	10.1016/j.poly.2020.114414

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