LAUSR

The severe effects of pharmaceutical and personal care products (PPCPs) should not be ignored and PPCPs must be eliminated prior to their release to the environment. In this study, cellulosic sisal fibre was modified simultaneously by polypyrrole-polyaniline nanoparticles and it was employed as a cost-effective, non-toxic nano bio-composite for the elimination of ibuprofen. It was characterized by SEM, EDAX, FTIR, and XRD. Parameters were tested in the form of the one-factor-at-a-time method. These parameters were contact time, pH, initial ibuprofen concentration, adsorbent dosage, agitation speed, and temperature and the optimized conditions obtained were 60 min, 5, 30 mg/L, 300 mg, 150 rpm, and 313 K, respectively and ibuprofen removal efficiency reached 86%. Furthermore, Kinetics data were fitted on the Pseudo-second model (R2 0.9991), indicating a chemisorption process. The Isothermal study demonstrated that Sips assumptions had the greatest R2 value in the examined temperatures (R2 0.9985 at 298 K). Energy site distribution revealed that at the higher temperature more binding sites were activated on the modified cellulosic Sisal, resulted in greater adsorption capacity, with the highest capacity of 21.5 mg/g at 313 K. Modified cellulosic Sisal can be concluded to be a cost-effective, prominent, and efficient adsorbent for ibuprofen elimination.