The Mechanochemical Influence on the Physico-chemical Properties of CeO2-MoO3 System

Olena Sachuk1 Lena951 [at] i.ua
Valery Zazhigalov1
Olena Diyuk1
  1. Department of Heterogeneous Catalytic Oxidation Processes, Institute for Sorption and Problems of Endoecology of NAS of Ukraine, Kyiv, General Naumov street, 13
Abstract 

Oxide system CeO2-MoO3 with atomic ratio Ce/Mo = 15:85, 25:75, 50:50 and 75:25 was modified by mechanochemical treatment (MChT) during 2, 4 and 8 hours in air. Obtained samples were studied by means of XRD, BET, ТЕМ, sorption from the solution methods. It was shown, that mechanochemical modification leads to change of oxides crystalline structure, their surface morphology, porous structure and sorption ability to safranin-T dye.

References 

[1] Y. Jin, N. Li, H. Liu, X. Hua, Q. Zhang, M. Chen, F. Teng, "Heighly efficient degradation of dye pollution by Ce-doped MoO3 catalyst at room temperature," Dalton Treans, vol. 43, pp.12860- 12870, 2014.

[2] M. M. Mohamed, S. M. A. Katib, "Structural and catalytic characteristics of MoO3/CeO2 catalysts: CO oxidation activity, " Applied catalysis A: General, vol. 287, pp. 236-243, 2005.

[3] S. Zhao, J. Li, L.Wang, X. Wang, "Degradation of rhodamin B and safranin T by MoO3:CeO2 nanofibers and air using a continuous mode, " Cleansoil, air, water, vol. 38, pp.268-274, 2010.