Investigation of the removal of chromium (III) from seawater using EDTA encapsulated in silica sol-gel matrix
Faculty Mentor(s) Name(s)
Catrena Lisse
Abstract
Chromium (III), also known as trivalent chromium, is a toxin found in seawater that poses a threat to aquatic ecosystems. This trivalent chromium combines with several macromolecules including genetic material and results in chromium being taken up either through gastrointestinal tract or respiratory tract.1 This project investigates the removal of Cr(III) ions in seawater samples by complexation with the chelating agent ethylenediaminetetraacetic acid (EDTA). A colorimetric sensor was designed using EDTA encapsulated in a silica sol-gel-derived optically transparent glass. The complexation of Cr(III) with EDTA in solutions and in gels was evidenced by the visible transition of colors from green to violet. Ultraviolet/visible (UV/Vis) and Raman spectroscopy were used to determine the identification and removal of Cr(III) by the EDTA sol-gel sensor. This presentation will highlight the experimental methodology and preliminary results of the study.
Start Date
27-3-2024 10:00 AM
End Date
27-3-2024 10:50 AM
Location
Magnolia Ballroom
Investigation of the removal of chromium (III) from seawater using EDTA encapsulated in silica sol-gel matrix
Magnolia Ballroom
Chromium (III), also known as trivalent chromium, is a toxin found in seawater that poses a threat to aquatic ecosystems. This trivalent chromium combines with several macromolecules including genetic material and results in chromium being taken up either through gastrointestinal tract or respiratory tract.1 This project investigates the removal of Cr(III) ions in seawater samples by complexation with the chelating agent ethylenediaminetetraacetic acid (EDTA). A colorimetric sensor was designed using EDTA encapsulated in a silica sol-gel-derived optically transparent glass. The complexation of Cr(III) with EDTA in solutions and in gels was evidenced by the visible transition of colors from green to violet. Ultraviolet/visible (UV/Vis) and Raman spectroscopy were used to determine the identification and removal of Cr(III) by the EDTA sol-gel sensor. This presentation will highlight the experimental methodology and preliminary results of the study.