Synthesis, Characterization, and Application of Co-Al-Zn Layered Double Hydroxide/Hydrochar Composite for Simultaneous Removal of Cationic and Anionic Dyes

Figure 8

Point of zero charge plots and adsorption behavior of various materials for selected dyes. LDH (a), C-1 to C-4 (c–d), and HC (e).

(a)

(b)

(c)

(d)

(e)

(f)