A. Malhotra et al., SORPTION OF NITROPHENOLS ON ACID-TREATED HYDRATED ZIRCONIUM(IV) OXIDE, Journal of the Indian Chemical Society, 73(6), 1996, pp. 239-242
The parameters like surface area, anion content and OH- ion exchange c
apacity of chemically-pretreated (HClO4 and CH(3)COOR) hydrous zirconi
um(IV) oxide were determined. The sorption of aqueous 2,4-dinitropheno
l and picric acid on the substrates of surface-phase pH 3.0-7.5 was fo
und depend on pH of the substrates, time and temperature. The mechanis
m of sorption has been shown to be anion - exchange sorption and weak
chemical interactions.