Fig. 5 | Scientific Reports

Fig. 5

From: Eco-friendly zinc-chitosan/poly(l-lactic acid)/polyurethane nanocomposites for dye removal and antimicrobial wastewater treatment

Fig. 5

Desorption, reusability, and structural analysis of ZCPP41 NCs for Acid Blue 25 adsorption. (A) Release efficiency of Acid Blue 25 dye using different desorbing agents (e.g., 0.01 M Na₂CO₃); (B) adsorption capacity over reuse cycles (up to 3 cycles, no pre-treatment); (C) initial SEM image of ZCPP41 NCs; (D) SEM image after 2 reuse cycles, magnification: ×10,000), showing surface morphology changes.

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