Fig. 4
From: Deciphering the effect of citric acid on arsenic adsorption with phosphorene in aqueous solution

Effects of environmental parameters on performance (a) Concentration, (b) Temperature, (c) CA concentration, (d) pH, (e) Valance, (f) Dosage. Conditions: initial As(III) or As(V) concentration = 1.0 mg L− 1; solution temperature = 25 °C; pH = 7.0; concentration of CA = 0.1 mM