Acid-inducing {110}/{121} facet junction formation boosting the selectivity and activity of CO2 photoreduction by BaTiO3 nanoparticles

With the introduction of {110} facets and an increasing exposure ratio, the photoreduction CO 2 reaction of acid-etched BaTiO 3 occurs on different facets of BaTiO 3 , and the corresponding reactants/products and photocatalytic mechanism are presented.