Cesium salt of tungstophosphoric acid/mesoporous (zirconia–silica) composite for highly efficient synthesis of 7-hydroxy-4-methyl coumarin and removal of methylene blue

Abstract

Cs salts of tungstophosphoric acid supported mZS with varying amounts of Cs ions content have been prepared by a two-step impregnation technique, and found to be effective for the removal of hazardous dyes such as MB from an aqueous solution.

AC conductivity study of mechanochemically synthesized solid electrolytes of Li6−aMa/nnPS5Cl (M = Ca, Mg, Ba, Zn, Al, Y)

“… 20 In most ion-conducting materials, ε ′ decreases with an increase in frequency. 21 The plot of Li 5.94 Mg 0.03 PS 5 Cl at room temperature continuously decreased in the intermediate- and high-frequency regions; however, the plots of the other samples obtained at room temperature exhibited maxima at 10 5 –10 6 Hz. Maxima were observed in all the plots at 50 °C or above.…”