Fig. 1: The structural characterization of catalysts.

a Illustration of the molecular structure and (b) XRD patterns of UiO-66-(Zr) by simulation, UiO-66-NH2-(Zr), UiO-66-NH2-(Zr/Fe), and UiO-66-NH2-(Zr/Fe)/GA. Representative (c) SEM and (d) TEM images of UiO-66-NH2-(Zr/Fe). Representative (e) SEM and (f) TEM images of UiO-66-NH2-(Zr/Fe)/GA. g HRTEM image, (h) SAED patterns, and (i) High-angle annular dark field (HAADF) and EDS elemental mapping images of UiO-66-NH2-(Zr/Fe)/GA.