Ion Exchange Technologies

Abstract

IU), Turkey. She received her master of science degree in physical chemistry from IU in 1994. She received her doctor of philosophy degree in physical chemistry from IU in 2000. She worked as visiting research assistant professor at the University of Illinois, Chicago, department of chemistry, between 2005-2006. She also worked at University of Chicago in Dr. Graeme Bell's Lab in 2007. She has research experience in adsorption, surface characterization and ion exchange. She worked on different projects funded by Istanbul University Grant Commission. She has published several research articles and a book chapter in this area.

Iodine-mediated hydration of alkynes on keto-functionalized scaffolds: mechanistic insight and the regiospecific hydration of internal alkynes

“…Success has been obtained with many other transition metal salts, for example, palladium(II) [4–5], rhodium(III) [6], copper(II) [7], silver(I) [8], and gold(I)/(III) [9–12]. While less toxic than mercury, such catalysts are still environmental hazards and tend to be costlier [13–14]. The iodine-mediated hydration described herein is a viable solution to these issues [15–16].…”

Coupling Light in Ion-Exchanged Waveguides by Silver Nanoparticle-Based Nanogratings: Manipulating the Refractive Index of Waveguides

“…Over the last few decades, many studies in doping metal nanoparticles into a glass substrate investigated the thermal ion-exchange (IE) process. − In this process, the glasses are covered by molten salt, including metal ions, which replace alkali ions in the glass matrix during a thermal process. − Penetration of metal ions such as silver ions (Ag + s) into a glass induces positive stress due to the different ionic radius and polarizability from those of sodium ions (Na + s), accompanied by modification of its refractive index. − Changing the molten salt composition makes it possible to manipulate the refractive index of the glass induced by the IE process …”

“…The refractive index of Ag + /Na + ion-exchanged glasses depends on the concentration of Ag + s introduced into the glass matrix. − Ag + s, driven into the glass matrix from molten salt by a thermal process, penetrate a few micrometers into the glass matrix, but they are not often uniformly distributed through the glass . Therefore, the concentration of silver in the glass matrix can be represented by a gradient profile, which rapidly decreases inward .…”

“…One of the significant challenges of using ion-exchanged glasses as a waveguide is coupling the light beam into the waveguides. ,, Among different coupling mechanisms, the prism coupling approach and periodic nanostructures are the most appropriate methods for coupling the light beam into ion-exchanged glasses. ,,, In the prism coupling technique, a high-index prism guides incident light into the waveguide. For this purpose, phase matching must occur between the incident wave and guided mode .…”