L. Mazzeo, D. Rosa, I. Bavasso, L. Di Palma, Entrapped Zinc Oxide and Titania Nanoparticles in Calcium Alginate Beads for the Removal of Methylene Blue (mb): Adsorption Properties and Photocatalytic Stability, Chemical Engineering Transactions. 84 (2021) 181-186. doi:10.3303/CET2184031.