Natural Organic Matter Association Modulates Pyrite Surface Electron Transfer Kinetics and Path for Reactive Oxygen Species Generation

and •OH yields increasing by 1.5-1.9-fold and 1.8-2.3-fold, respectively. Elevated ROS levels increased organic pollutant degradation rates by 1.6-2.7-fold. These findings highlight the multifaceted role of the NOM in shaping surface electron transfer kinetics and ROS generation at iron mineral interfaces.