Fig. 4

Decolorisation efficiency of RhB by (CoFeNi)1−2.5x(MoxTi1.5x) HEA powders under different pH values: pH = 2 (a), pH = 4 (b).

Decolorisation efficiency of RhB by (CoFeNi)1−2.5x(MoxTi1.5x) HEA powders under different pH values: pH = 2 (a), pH = 4 (b).