“…It is even possible to increase the active surface of modified TiO 2 using lanthanides, 17 which can be performed by a co-doping method, and this consequently increases the photocatalytic reactivity. [18][19][20] Metal-organic frameworks (MOFs), 21 due to their large internal surface area, 22 flexibility in designing the active sites, 23 chemical alteration, 24 pore structure, and high metal content, 25 provide valuable opportunities to design compounds with multiple applications. 26 MOFs are less thermally and chemically stable compared to porous mineral solids, even though some of them decompose when exposed to air or moisture.…”