Enhanced persulfate activation by ethylene glycol-mediated bimetallic sulfide for imidacloprid degradation.

CuFeS is regarded as a promising catalyst for heterogeneous activation to remove organic contaminants in wastewater. However, effects of solvents in regulating material synthesis and catalytic activity are still not clear. Herein, we reported the role of water, ethanol, ethylene glycol (EG), glycerol, and polyethylene glycol 200 on the synthesis of CuFeS micro-flowers and their performance in activating persulfate (PS) to remove imidacloprid (IMI) pesticide.

Assessment of volatile organic compound emissions from pesticides in China and their contribution to ozone formation potential.

Solvents, components of pesticide emulsifiable concentrates (ECs), emit quantities of volatile organic compounds (VOCs) into the atmosphere. In the air, their active involvement in oxidative chemical reactions with oxidants exposed to ultraviolet solar radiation can result in the formation of ozone. The quantitative assessment of VOC emissions from agricultural pesticide applications remains hampered by many factors, especially the volatility coefficient of solvents in pesticides.