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Fig. 1 | Sustainable Environment Research

Fig. 1

From: Hollow and oval-configured ultrafine Co3O4 as a highly-efficient activator of monopersulfate for catalytic elimination of Azorubin S

Fig. 1

(a) Flow-chart of HOCO preparation; (b) and (e) microscopic images of the original oval-like Co-MOF; (c) and (f) microscopic images of hollow oval-like Co-MOF; (d) and (g) SEM and TEM images of HOCO; (h) TEM image of HOCO at a closer magnification (the inset is the particle size distribution); (i) HRTEM image of HOCO; and (j) SAED of HOCO

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