Research Article

Adsorption of Crystal Violet onto an Agricultural Waste Residue: Kinetics, Isotherm, Thermodynamics, and Mechanism of Adsorption

Figure 3

Effect of (a) contact time on adsorption; (b) initial dye concentration on adsorption; (c) pH on CV adsorption; (d) the adsorbent dose on adsorption process. The inset represents the pH variation in terms of the initial pH of the solution to determine the point of zero charge pHpzc.
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