These nanosheets were arranged in the form of Ro3280 at 5 mol%, which gets transformed to agglomerated flowers at 7 mol% of Dy3+ ion concentration as shown in Fig. 4(c and d). At 9 mol%, these agglomerated flowers were arranged in the form of nanoflowers with several voids and pores ( Fig. 4e). This type of porous network was a typical characteristic of combustion synthesized NPs.