Student Work

Degradation of Thiamethoxam via Photocatalysis: Kinetics, Mineralization, and Toxicity

Public

Downloadable Content

open in viewer

The goal of this project was to characterize the photocatalytic degradation of the pesticide thiamethoxam and the effects of the additives ammonium nitrate, humic acid, and river water on this degradation by measuring reaction kinetics, degree of mineralization, and toxicity. Experimental results were obtained for these methods via high performance liquid chromatography, total organic carbon (TOC) and total nitrogen (TN) analysis, and a lettuce test, respectively. Reaction rate coefficients were found to be approximately 0.0054 min-1. Nearly all samples decreased in TOC and increased in TN after degradation. Base thiamethoxam was shown to increase in toxicity after degradation. Overall, humic acid was found to be the most efficient additive for this reaction.

  • This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.
Creator
Contributors
Publisher
Identifier
  • E-project-042413-151834
Advisor
Year
  • 2013
Center
Sponsor
Date created
  • 2013-04-24
Location
  • Nancy
Resource type
Major
Rights statement

Relations

In Collection:

Items

Items

Permanent link to this page: https://digital.wpi.edu/show/2b88qf02j