Chemistry Journal of Moldova

PRODUCTS DERIVED FROM CATALYTIC OXIDATION OF METHYLENE BLUE

Author(s):

T. Lupaşcu, M. Ciobanu, O. Bogdevici, V. Boţan


Field: Ecological chemistry
Type: Research paper
Issue: 2011 Volume 6, no.1
Pages: 77-80
Keywords:

methylene blue, catalytic oxidation, chromatography, mass spectrometry.


Full Text (PDF): Download
Abstract (JPEG)

DOI:
dx.doi.org/10.19261/cjm.2011.06(1).07

Graphical Abstract:
 It was established that the process of catalytic oxidation of methylene blue, at low concentrations (20 mg/L), i.e. in real solutions, gives sulfates and nitrates and new product, which can be categorized, in their vast majority, as impurities, probably got from the vacuum distillation unit, which make up for only ~ 10 % of methylene blue used in the experiment. Methylene blue adsorption at the interface occurs in real solutions. In case of performing the process at methylene blue concentration of 120 mg/L, hemi-micelles are adsorbed at the interface and the OH• radical acts more effectively due to the presence at the interface of a greater number of dye molecules.

Downloads: 20