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Ultrasound‐Induced Rapid Intercalation of Biselenite in Layered Double Hydroxides
Author(s) -
Lee Jong Hyeon,
Lee Yeon Soo,
Kim Hana,
Jung DukYoung
Publication year - 2011
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201100261
Subject(s) - layered double hydroxides , chemistry , intercalation (chemistry) , carbonate , ion , raman spectroscopy , fourier transform infrared spectroscopy , monolayer , carbonate ion , inorganic chemistry , nuclear chemistry , chemical engineering , hydroxide , organic chemistry , biochemistry , physics , optics , engineering
The deintercalation of carbonate (CO 3 2– ) ions from MgAl‐layered double hydroxides (LDHs) (Mg/Al = 2) both in monolayer films and powdered samples under atmospheric conditions in ethanol was investigated. A selenous acid precursor was incorporated into the interlayer gallery. Treatment with 0.5 M selenous acid (H 2 SeO 3 ) for 30 min with powdered LDHs or with 0.1 M H 2 SeO 3 for 5 min with the thin film LDHs resulted in carbonate ions being exchanged with biselenite (HSeO 3 – ) ions. Electron microscopy showed that the morphologies of the original LDH particles remained after the reaction, despite the ultrasound being continuously applied for up to 2 h. XRD, FTIR and Raman spectroscopic scattering results strongly suggested that cyclic dimers of biselenite ions were incorporated into the gallery spaces of the LDHs, vertically arranged to the horizontal axes of the MgAl‐LDH layers.