D. T. Nguyen, T. N. S. Ho, and M. V. Le, “Removal of ß-naphthol in Water via Photocatalytic Degradation over N-TiO 2 /SiO 2 Nanocomposite under Simulated Solar Light Irradiation”, Chemical Engineering Transactions, vol. 72, pp. 1-6, Jan. 2019.