Use of Si-N-Fe and B-N-Fe compositions for formaldehyde degradation in combined heterogeneous and homogeneous catalytic processes

Skvortsova, L. N.; Чухломина, Л. Н.; Mokrousov, G. M.; Krotov, A. E.

doi:10.1134/s1070427213010084

Cited by 7 publications

(1 citation statement)

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“…Previous research has shown that iron‐ceramic composites based on boron nitrides and silicon nitrides had high photocatalytic activity in the processes of degradation of phenolic compounds ‐formaldehyde, oxalic acid and some dyes‐ due to the formation of photoactive catalytic systems (photo‐Fenton and ferrioxalic) in the presence of activators (H 2 O 2 and H 2 C 2 O 4 ) . Moreover, when utilizing this composites, dissolved iron concentration in a solution does not exceed 10 –3 mg L −1 , so there is no need in the additional step of iron removal from thereafter.…”

Section: Introductionmentioning

confidence: 99%

Metal‐Ceramic Composites for Photocatalytic Oxidation of Diclofenac in Aqueous Solution

et al. 2020

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Photocatalytic activity of metal‐ceramic composites synthesized by self‐propagating high‐temperature synthesis (SHS) is investigated in the processes of degradation of diclofenac (DCF). Optical properties of the composites were studied, and the band gaps of ceramic matrix semiconducting components were calculated from the absorbance spectra. The effect of the phase composition, UV irradiation duration, the nature and quantity of the activator (H2C2O4 and H2O2) on the degree of oxidation destruction was investigated. The best catalytic performance (98–99 % DCF degradation) was achieved with the combination of heterogeneous boron nitride and SiAlON based composites and a homogeneous photo‐Fenton system. However, DCF decomposition with a minimum number of intermediates was achieved using boron nitride‐based composites.

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Section: Introductionmentioning

confidence: 99%