a green surface prepared with highly applicable of advanced oxidative processes aops for removal of riboflavin drug pollutant remediation

In this study, the prepared, characterization, and photo-catalytic performance of zinc oxide/activated carbon (zno/ac) nanocomposites prepared via hydrothermal process to be applied for advanced oxidative process (aops). the zno/ac nanocomposites was characterized via field emission scanning electron microscopes (fe-sem), transmission electron microscopy (tem) and energy dispersive x-ray analysis (edx) analyses. different parameters were utilized to achieve best conditions including, weight of nanocomposite, and concentration of riboflavin drug. likewise, the photo-degradation appear high efficiency and activity when reused 5 cycles and confirm results that this photo-catalyst has promising prospects and a high ability to remove pollution from aqueous solution. furthermore, ac can be a realistic and affordable re-placement for pricey noble metals. photocatalytic activities of the catalytic adsorbents are used as model pollutant (riboflavin drug) under uv irradiation. zno/ac nanocomposites showed excellent photo-catalytic activity (~99% degradation of drug in 60 min) compared with that of bare zno nps and ac. in addition, a recycle or reused experiment demonstrated the best stability of the nanocomposite; the ratio photo-degradation of zno/ac reached last more 70% after five cycle successive runs and possessed strong photo-catalytic ability. the improve photo-catalytic activities may be related to the effects of the relatively high surface area. the best data between the studied photo-catalysts appear the drug removal efficiency of ∼92% in 1 h under uv light irradiation.