Catalytic Degradation of Safranin T in Aqueous Medium Using Non-conventional Processes

Eleven TiO powders as catalysts have been studied in process of safranin T degradation in aqueous medium using mechanochemical, microwave and ultrasonic techniques. The degree of degradation has been controlled by means of spectrophotometric analysis of safranin T solutions before and after treatmen...

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Bibliographic Details
Published in:Journal of advanced oxidation technologies 2017-01, Vol.20 (1)
Main Authors: Sydorchuk, V., Khalameida, S., Charmas, B., Skubiszewska-Zięba, J., Zazhigalov, V., Davydenko, L.
Format: Article
Language:English
Subjects:
crystal structure
dyes degradation
mechanochemical
microwave
mono- and bi-phase titania
sonochemical techniques
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Summary:Eleven TiO powders as catalysts have been studied in process of safranin T degradation in aqueous medium using mechanochemical, microwave and ultrasonic techniques. The degree of degradation has been controlled by means of spectrophotometric analysis of safranin T solutions before and after treatment and total organic carbon measurements. XRD, DTA-TG and BET analysis, FTIR spectroscopy and mass spectrometry of initial and spent catalysts have been carried out for explanation of obtained results. It has been established that the catalytic activity of TiO under mechanochemical treatment depends on phase composition and dispersity (specific surface area). Particularly, catalytic activity of mono-phase titanias inversely depends on specific surface area of initial catalyst. Sono- and microwave catalytic degradation were less effective.
ISSN:2371-1175
2371-1175
DOI:10.1515/jaots-2016-0176