Ray L. Frost

TL;DR: In this paper, the structural changes of synthetic beidellite and Al13-pillared analogues during dehydroxylation were studied using infrared emission spectroscopy (IES), and the results showed that upon calcination the pillars de-hydroxylate, thereby releasing protons which are able to diffuse through the tetrahedral sheet into the octahedral sheet where they interact with the structural OH-groups and form water.

TL;DR: In this paper, the tellurite ion has C3v symmetry and four modes, 2A1 and 2 E. Raman bands for teineite at 739 and 778 cm−1 and for graemite at 768 and 793 cm− 1 are assigned to the (TeO3)2−ν2(A1) bending mode.

TL;DR: In this article, the removal of agricultural pollutants, imazaquin and atrazine was conducted using montmorillonite (MMT) exchanged with organic cations through ion exchange.

TL;DR: The molecular structure of selected minerals of the rosasite group was studied in this paper, using an XRD, SEM and infrared spectroscopic study with an X-ray scanner.

TL;DR: Raman spectroscopy has been used to characterise several lead and mixed cationic-lead minerals including mendipite, perite, laurionite, diaboléite, bolerite, pseudoboléites, chloroxiphite, and cumengéite to study their vibrational spectra.