Green Synthesis AgNPs Immobilized to Whatman Paper Using Chromolaena odorata Extract and Its Application as Photocatalyst

Synthesis and immobilization of silver nanoparticles (AgNPs) to Whatman paper carried out using Cromolaena odorata extract irradiated by sunlight. The UV-Vis shows successfully formed from AgNO3 1 mM, 2 3 mM with the absorption peaks at 455 nm, 452 451 respectively. SEM AgNPs are spherical an average particle size 60.45 63.19 68.42 EDX spectrum composition immobilized increase increasing concentration 10.14Wt%, 64.48Wt%, 70.48 Wt%, AgNPs/Whatman has a cubic crystal structure, space group Fm-3m, lattice parameter (a) 4.0862 Ǻ 42.94 nm. FTIR reach 520.78 cm-1 1,059 explains vibration Ag-O bonds indicated formation AgNPs. Furthermore, photocatalyst ability for dye degradation was evaluated methylene blue 10 ppm under sunlight 6 hours. result changed colour fade decreases absorbance blue. Therefore, it can be concluded that green synthesis have potential applied as materials degradation.