A new nanostructured material based on fluorophosphate incorporated into a zinc–aluminium layered double hydroxide by ion exchange
EL HASSAN ELKHATTABI MOHAMED LAKRAIMI MOHA BERRAHO AHMED LEGROURI RADOUAN HAMMAL LAYLA EL GAINI
Click here to view fulltext PDF
Permanent link:
https://www.ias.ac.in/article/fulltext/boms/040/04/0745-0751
Layered double hydroxides (LDHs), also called anionic clays, consist of cationic brucite-like layers and exchangeable interlayer anions. These hydrotalcite-like compounds, with Zn and Al in the layers and chloride in the interlayer space, were prepared following the coprecipitation method at constant pH. The effect of pH, aging time and anion concentration on the intercalation of fluorophosphate (PO$_3$F$_2$−, FP) in the [Zn–Al] LDH was investigated. The best crystalline material, with high exchange extent, was obtained by carrying out the exchange at 25◦C in a 0.03 M FP solution at pH 7 with at least 42 h of aging time. A mechanism for the FP intercalation was confirmed by X-ray diffraction, infrared spectroscopy and thermogravimetry (TG) analyses (TG and DTG curves).
EL HASSAN ELKHATTABI1 MOHAMED LAKRAIMI2 MOHA BERRAHO1 AHMED LEGROURI3 4 RADOUAN HAMMAL5 LAYLA EL GAINI1
Volume 43, 2020
All articles
Continuous Article Publishing mode
Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020
Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
Physical Sciences 2020
Click here for Editorial Note on CAP Mode
© 2021-2022 Indian Academy of Sciences, Bengaluru.