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

Table 6

Optimization of desorption solvent.

Solvents	Desorption (%)
	MB	MO	RY
NaHCO3 (0.5 M)	60	70	70
NaOH (0.1 M)	70	85	80
HCl (0.1 M)	20	40	30
Ethanol	80	75	70
Methanol	88	83	80
NaOH (0.01 M) in methanol	88	85	88