A novel approach in revealing mechanisms and particular step predictors of pH dependent tartrazine catalytic degradation in presence of Oxone®.

The degradation of tartrazine in the presence of cobalt activated Oxone® (potassium peroxymonosulfate) was investigated at different initial pH values. Aluminum pillared clay had the role of a support for catalytically active cobalt oxide species. The degradation of tartrazine and the formation of a mixture of degradation products were monitored using the Ultraviolet-Visible (UV-Vis) spectroscopy and gas chromatography-mass spectrometry (GC-MS).

Differently shaped nanocrystalline (Fe, Y)O and its adsorption efficiency toward inorganic arsenic species.

Herein we report effects of partial substitution of Fe by Y in magnetite (FeO) on morphology and inorganic arsenic species adsorption efficiency of the Fe Y O nanoparticles formed. The series of Fe Y O (x = 0.00, 0.

Efficient stabilization of Saccharomyces cerevisiae external invertase by immobilisation on modified beidellite nanoclays.

The external invertase isoform 1 (EINV1) was immobilised on eight differently modified beidellite nanoclays. Modifications were composed of organo-modification with different amounts of surfactant - hexadecyl trimethylammonium cation (HDTMA), pillaring with Al/Fe containing polyhydroxy cations and acid modification of Na-enriched and pillared clays. The modified nanoclays were characterised by XRD, N2-physisorption, SEM and FT-IR spectroscopy.