Efficient Removal of Representative Chemical Agents by Rapid and Sufficient Adsorption via Magnetic Graphene Oxide Composites

Chemical agents pose a significant threat to social security, highlighting the crucial role of representative chemical adsorption in ensuring safety our environment. This study explored application Magnetic Graphene Oxide Nanoplatelet Composites (MGONCs) adsorbing such as Lewisite (L), O-ethyl S-2-diisopropylaminoethyl methylphosphonothiolate (VX), Sarin (GB), and Soman (GD). MGONCs were synthesized through physical blending method, with combination graphene oxide (GO) Fe3O4 nanoparticles at mass ratio 1:1. Optimization process involved investigating effects contact time, temperature, adsorbent dosage. Remarkably, rate L VX exceeded 99% when dosage was 2.5 mg, time 30 s room temperature. Furthermore, GB GD achieved maximum rates after 20 min, dosages 10 mg respectively. Characterization magnetic composite accomplished XRD, TEM, VSM, FTIR, TGA, BET analyses. Kinetical analysis revealed that mechanism on followed pseudo-second-order (PSO) kinetics, exhibiting high regression coefficient. The calculated qe values 0.103125 mg/g 0.081349 mg/g, research demonstrated feasibility utilizing highly efficient adsorbents for agents, particularly on-site sampling scenarios.