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

Figure 4

FESEM images of Cu(OH)₂ structures prepared under different concentrations of NaOH with [K₂S₂O₈]=0.13molL⁻¹ for 30 min. (a) [NaOH]=0.13molL⁻¹; (b) [NaOH]=1molL⁻¹; (c) [NaOH]=3molL⁻¹; (d) [NaOH]=9molL⁻¹.

(a)

(b)

(c)

(d)