Ficus-mediated green synthesis of manganese oxide nanoparticles for adsorptive removal of malachite green from surface water.

ABSTRACT: The extract of ficus leaves was used to prepare manganese (IV) oxide nanoparticles (MnO₂ NPs) for the first time. Several different analytical techniques were used to characterize the prepared MnO₂ NPs. MnO₂ has spherical crystals that are ~ 7 nm on average in size and have 149.68 m²/g of surface area and 0.91 cm³/g of total pore volume. Malachite green (MG) dye was then taken out of the water by adsorption using MnO₂ NPs. Optimization of various adsorption parameters resulted in 188.68-277.78 mg/g maximum adsorption capacities at 298-328 K tested temperatures and 99.6% removal of 50 mg/L MG within 90 min using MnO₂ dose of 0.01 g at pH 10 and 298 K. The results were tested using pseudo-first order, pseudo-second

SUBMITTER: Hasan IMA 

PROVIDER: S-EPMC9995432 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature