“…Different metal oxide nanoparticles such as titanium, iron, platinum, zinc and zirconium have been employed successfully as semiconductor photo catalysts in the removal of pharmaceuticals through filtration, adsorption, photo catalysis and Fenton methods with hydrogen peroxide as an oxidizing agent which generates hydroxyl radicals which attack and oxidize the organic pollutants (Bhamare & Kulkarni, 2019;W. Cai, Weng, & Chen, 2019;Das et al, 2018;De Andrade, Oliveira, Da Silva, & Vieira, 2018;Demirezen et al, 2019;Kansal et al, 2014;Malakootian, Nasiri, & Amiri Gharaghani, 2020;Mbiri et al, 2018;Teixeira et al, 2016). Barium Doped zinc oxide nanoparticles were used by Bhamare and Kulkarni to photo catalytically degrade Zidovudine an antiretroviral agent for AIDs which was dependent on the amount of the catalyst (Bhamare & Kulkarni, 2019).…”