TiO2 nanoparticle size dependence of porosity, adsorption and catalytic activity

► Decreasing the particle size of anatase-titania down the range 19-8 nm: stabilizes the anatase structure. ► Decreasing the particle size of anatase-titania down the range 19-8 nm: blueshifts the UV absorption edge. ► Decreasing the particle size of anatase-titania down the range 19-8 nm: decreases the tetrahedral/octahedral Ti4+ proportion. ► Decreasing the particle size of anatase-titania down the range 19-8 nm: weakens the surface acidity.