[Retracted] Polypyrrole/Magnetic/Tea Waste Composites for PO₄³⁻ Ions Removal: Adsorption-Desorption, Kinetics, and Thermodynamics Studies

Figure 1

FTIR analysis (a) TW, (b) PPY/TW adsorbent, and (c) MG/TW adsorbent.

(a)

(b)

(c)