Ambrosia artemisiifolia – biosorbent for synthetic organic dyes

Ambrosia artemisiifolia is an invasive weed known for its ability to trigger allergic 
\nreactions in humans. According to the currently available data, the concentration of 
\nAmbrosia pollen in Serbia in 2022 was 9476 grain/m3, making it dominant compared to 
\nother allergens. Because of its prevalence and adverse effects, controlling this plant is 
\nessential to reduce medical, ecological, and agronomic problems. The objective of this 
\nresearch was to investigate the effectiveness of using Ambrosia as a biosorbent for the 
\nsorption of synthetic organic dyes Congo red (CR), Brilliant Cresyl blue (BCB) and 
\nToluidine blue (TB) from aqueous solutions. At an initial dye concentration of 25 mg/L 
\nand a contact time of 1 h, the sorption capacity of the biosorbent was determined. The 
\ntested biosorbent proved to be effective in the sorption of CR, BCB and TB dyes with a 
\nsorption capacity of 4.0 mg/g, 4.24 mg/g and 44.1 mg/g. UV/Vis spectroscopy (NOVEL
\n102S, COLOLab Experts, Slovenia) was used to determine the dye concentrations.