Class
Article
College
College of Engineering
Department
English Department
Faculty Mentor
Kyle Moor
Presentation Type
Poster Presentation
Abstract
Erosion of wildfire-affected organic matter and/or its physical disintegration in water results in the formation of pyrogenic Dissolved Organic Matter (py-DOM), which can react with ground state oxygen to produce singlet oxygen (1O2) in the presence of light. 1O2 has a high electronegativity and oxidizing potential which influences the photo-transformation and environmental fate of organic contaminants present in the water, hence, it is essential to quantify singlet oxygen quantum yields for wildfire derived py-DOM, which is absent in the past literature. In this study, py-DOM was extracted from wildfire-affected tree portions from Colorado Grizzly Creek Wildfire. Time-resolved 1O2 phosphorescence was used to determine the 1O2 quantum yields of py-DOM.
Location
Logan, UT
Start Date
4-7-2022 12:00 AM
Included in
Photochemistry of Wildfire Derived Pyrogenic-Dissolved Organic Matter (py-DOM) for Photodegradation of Aquatic Contaminants
Logan, UT
Erosion of wildfire-affected organic matter and/or its physical disintegration in water results in the formation of pyrogenic Dissolved Organic Matter (py-DOM), which can react with ground state oxygen to produce singlet oxygen (1O2) in the presence of light. 1O2 has a high electronegativity and oxidizing potential which influences the photo-transformation and environmental fate of organic contaminants present in the water, hence, it is essential to quantify singlet oxygen quantum yields for wildfire derived py-DOM, which is absent in the past literature. In this study, py-DOM was extracted from wildfire-affected tree portions from Colorado Grizzly Creek Wildfire. Time-resolved 1O2 phosphorescence was used to determine the 1O2 quantum yields of py-DOM.