Upcycling of Waste Durian Peel into Valued Fe/N Co-Doped Porous Materials as Peroxymonosulfate Activator for Terramycin Oxidation
Year: 2025
Type: article
Abstract: Nitrogen-doped graphene-coated Fe nanoparticles ([email protected]) were synthesized through the pyrolysis of a durian peel-supported urea ferric salt mixture. These materials were subsequently utilized to activate peroxymonosulfate (PMS) for oxidation of terramycin (TEC). The incorporation of an optimal amount of urea and ferric nitrate during the synthesis of materials significantly improves the catalytic activity of the resulting catalysts after pyrolysis. Using [email protected] catalyst at a concentration of 0.10 g L−1, 98.55% oxidation of 20 mg L−1 TEC is achieved within 60 min. Additionally, [email protected] exhibits exceptionally low metal leaching, with levels remaining below 0.25 mg L−1. The [email protected] shows remarkable stability during oxidation and effectively resists interference, reusability, and robust stability throughout the oxidation process. The mechanism of the [email protected]/PMS/TEC system is determined, and the 1O2 is the main reactive oxygen species (ROSs). The XPS analysis confirms that the primary active sites are Fe0, as well as nitrogen-doped regions within the carbon matrix. This research demonstrates that by integrating iron and nitrogen with durian peel, it is possible to develop a PMS activator with satisfactory oxidation performance for the degradation of environmental pollutants.
Source: Molecules
Authors: Kewang Zheng, Rui Liu, Lihang Shen, Wei Li, Caiqin Qin
Institutions: Hubei Engineering University, The University of Sydney
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,258
OpenAlex ID: W4407841381