3D Cu(OH)₂ Hierarchical Frameworks: Self-Assembly, Growth, and Application for the Removal of TSNAs

Figure 5

FESEM images of Cu(OH)₂ structures prepared under different concentrations of K₂S₂O₈ with [NaOH]=7molL⁻¹ for 30 min. ((a), (b)) [K₂S₂O₈]=0.033molL⁻¹; ((c), (d)) [K₂S₂O₈]=0.17molL⁻¹.

(a)

(b)

(c)

(d)