Physical-chemical transformations in the system V2O5/(NH4)2Mo2O7 under hydrothermal conditions

• Authors: Svitlana Khalameida , Volodymyr Sydorchuk , Roman Leboda , Jadwiga Skubiszewska-Zięba , Valery Zazhigalov
• Languages of publication: EN

Abstracts

EN

Modified compositions in the system V2O5/(NH4)2Mo2O7 have been prepared by means of mechanochemical, hydrothermal, microwave and ultrasonic treatments in aqueous medium. Chemical and phase transformations occurring on the stages of modification and following calcinations have been studied with the help of XRD, DTA-TG, FTIR and UV-Vis spectroscopy, nitrogen adsorption, and SEM. It has been established that precursors of catalytically active phases possessing meso-macroporous structure have been formed during modification. The comparison of the properties of compositions prepared via different methods has been carried out. Particularly, precursors modified via various procedures possess different morphology.

Keywords

EN

Oxides; Hydrothermal conditions; X-ray diffraction; Phase transitions; Photocatalytic properties

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2014
• Volume: 12
• Issue: 2
• Pages: 140-152

Dates

published

1 - 2 - 2014

online

27 - 11 - 2013

Contributors

author

Svitlana Khalameida

• National Academy of Sciences of Ukraine

author

Volodymyr Sydorchuk

• National Academy of Sciences of Ukraine

author

Roman Leboda

• Maria Curie-Sklodowska University

author

Jadwiga Skubiszewska-Zięba

• Maria Curie-Sklodowska University

author

Valery Zazhigalov

• National Academy of Sciences of Ukraine

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Identifiers

DOI

10.2478/s11532-013-0375-4