Figure 1.

(a, b) Scanning electron microscope (SEM) images of BEA35 zeolites; (c) X-ray powder diffraction pattern of iron-exchanged BEA35 zeolites with various iron contents.

(a, b) Scanning electron microscope (SEM) images of BEA35 zeolites; (c) X-ray powder diffraction pattern of iron-exchanged BEA35 zeolites with various iron contents.