Detection of Heavy Metals through the use of Tetra Hydroxyphenyl Porphyrin-Doped Silica Sol-Gels
Faculty Mentor(s) Name(s)
Catrena H. Lisse, Ph.D
Abstract
Heavy metal contamination is an important issue because of its negative health and environmental effects. This research investigates the development and reusability of a heavy metal sensor through the entrapment of tetra-hydroxyphenyl porphyrin (H2THPP) in silica sol-gels. Preliminary investigation of sol-gel monoliths confirmed the colorimetric indication of chromium (Cr), cobalt (Co), lead (Pb), nickel (Ni), copper (Cu) and zinc (Zn) metals. The manufacture of a dip coater was designed and machined to produce thin films with optimal sensing properties. The interaction between the porphyrin and metals, the functionality of the porphyrin, and the structural integrity of the sensor was examined using colorimetric analysis, ultraviolet/visible (UV/Vis) spectroscopy, fluorescence spectroscopy, and thermogravimetric analysis (TGA). The experimental methodology and preliminary results of the research will be presented.
Start Date
27-3-2024 9:00 AM
End Date
27-3-2024 9:50 AM
Location
Magnolia Ballroom
Detection of Heavy Metals through the use of Tetra Hydroxyphenyl Porphyrin-Doped Silica Sol-Gels
Magnolia Ballroom
Heavy metal contamination is an important issue because of its negative health and environmental effects. This research investigates the development and reusability of a heavy metal sensor through the entrapment of tetra-hydroxyphenyl porphyrin (H2THPP) in silica sol-gels. Preliminary investigation of sol-gel monoliths confirmed the colorimetric indication of chromium (Cr), cobalt (Co), lead (Pb), nickel (Ni), copper (Cu) and zinc (Zn) metals. The manufacture of a dip coater was designed and machined to produce thin films with optimal sensing properties. The interaction between the porphyrin and metals, the functionality of the porphyrin, and the structural integrity of the sensor was examined using colorimetric analysis, ultraviolet/visible (UV/Vis) spectroscopy, fluorescence spectroscopy, and thermogravimetric analysis (TGA). The experimental methodology and preliminary results of the research will be presented.