Figure 4

Adsorption of RBBR by DPSAC as a function of pH at 30 °C (100 mg/L initial concentration, 0.2 g adsorbent dosage and 200 ml of solution shaken for 8 h).

Adsorption of RBBR by DPSAC as a function of pH at 30 °C (100 mg/L initial concentration, 0.2 g adsorbent dosage and 200 ml of solution shaken for 8 h).