In situ fabrication of TiO 2 nanoparticles/2D porphyrin metal–organic frameworks for enhancing the photoreduction of CO 2 to CO

In situ synthesis of TiO 2 loaded onto the two-dimensional Al-MOF by the in situ synthesis method to prepare the catalyst Al-MOF@TiO 2 , which can achieve the highly selective reduction of CO 2 to CO.