Waste-Tire-Derived Activated Carbon as Efficient Adsorbent of P-Nitrophenol from Wastewater

Table 1

Simplified version of five RAC preparation methods.

Activated carbon number	Preparation
650-0	Pyrolyzed at 650°C, sieved, washed with water, and dried at 80°C
650-1	KOH impregnation ratio 1:1, dried at 80°C. Pyrolyzed at 650°C for 1 h, sieved, washed with water to neutrality, and dried at 80°C
650-2	KOH impregnation ratio 1:2, dried at 80°C. Pyrolyzed at 650°C for 1h, sieved, pickled for 12 h, washed with water to neutrality, and dried at 80°C
750-1	KOH impregnation ratio 1:1, dried at 80°C. Pyrolyzed at 750 °C for 1 h, sieved, washed with water to neutrality, and dried at 80°C.
750-2	KOH impregnation ratio 1:2, dried at 80°C. Pyrolyzed at 750°C for 1 h, sieved, pickled for 12 h, washed with water to neutrality, and dried at 80°C.