Simple New Method for the Preparation of La(IO3)3 Nanoparticles

Abstract

We present a cost- and time-efficient method for the controlled preparation of single phase La(IO3)3 nanoparticles via a simple soft-chemical route, which takes a matter of hours, thereby providing an alternative to the common hydrothermal method, which takes days. Nanoparticles of pure α-La(IO3)3 and pure δ-La(IO3)3 were synthesised via the new method depending on the source of iodate ions, thereby demonstrating the versatility of the synthesis route. The crystal structure, nanoparticle size-dispersal, and chemical composition were characterised via angle- and energy-dispersive powder X-ray diffraction, scanning electron microscopy, and Fourier-transform infrared spectroscopy.

Synthesis and Characterization of Novel Nanoparticles of Lithium Aluminum Iodate LiAl(IO3)4, and DFT Calculations of the Crystal Structure and Physical Properties

“…By analogy with other iodates, the two vibrational frequencies of LiAl(IO3)4 observed at around 660 cm −1 and 786 cm −1 can be tentatively assigned as the symmetric (𝜈 at 780-630 cm −1 ) and anti-symmetric (𝜈 at 730-820 cm −1 ) stretching internal modes of the pyramidal IO3 -ion, respectively. These values are compatible with the equivalent modes of Al(IO3)3 [48], La(IO3) [22], Zn(IO3)2 [26], and LiZn(IO3)3 [37], among other iodates.…”

“…Many different families of nanomaterials have been studied with the aim of enhancing medical and NLO applications [18][19][20]. Metal iodates are considered to be among the most interesting nanomaterials [21][22][23][24][25][26][27][28][29], not only for NLO but also because of their dielectric properties and their unusual bonding properties, related to the presence of an electron lone pair on the iodine atom [30][31][32][33][34][35][36][37][38].…”

High-Pressure Spectroscopy Study of Zn(IO3)2 Using Far-Infrared Synchrotron Radiation

“…x ] receive great attention because of their non-linear optical properties. In particular, they are promising materials for second-harmonic generation (SHG) [1][2][3][4]. They have been also proposed for applications as dielectric materials, in non-linear optics, and for desalination and water treatment [1][2][3][4].…”

“…In particular, they are promising materials for second-harmonic generation (SHG) [1][2][3][4]. They have been also proposed for applications as dielectric materials, in non-linear optics, and for desalination and water treatment [1][2][3][4]. Amongst the iodates, the quasi-two-dimensional zinc iodate, Zn(IO 3 ) 2 , has recently been studied by several research groups [5][6][7][8].…”