Fe₂O₃/NiO nanocomposites: synthesis, characterization and roxarsone sensing by Fourier transform infrared photoacoustic spectroscopy

Abstract

The Fe2O3/NiO nanocomposite was prepared through facile mixing of pure Fe2O3 and NiO nanoparticles. The pure metal oxides were synthesized by glycine aided hydrothermal method. The crystal structure was determined...

Reusable MOF-Coated Chitosan@Paper Strip Composite for Real-Time Monitoring of Pesticide Pendimethalin and Organoarsenic Feed Additive Roxarsone Levels in Environmental Water, Food, and Vegetable Samples

“…The requirements of expensive equipment, high operation costs, complex analytical processes, and prolonged analysis time limit their applicability. Multiple electrochemical quantum dots, nanocomposites, nanosheets, and nanoparticle-based sensors were reported in the literature for both pendimethalin and roxarsone. − However, the majority of these analytical techniques require a nonaqueous solvent environment for functioning, which is not environmentally friendly; moreover, lower selectivity, higher response time, and higher limits of detection decreased its applicability in rapid detection of this organopollutant in real samples.…”