Removal of Methylene Blue from Aqueous Solution by Activated Carbon Prepared from Pea Shells (Pisum sativum)

Table 1

The related parameters for the adsorption of MB on activated carbon prepared from pea shell at different temperatures.

Adsorption isotherms and its constants	Temperatures (°C)
	25	35	45	55
Langmuir adsorption isotherms constants
𝑄𝑜 (mg g^−1)	246.91	261.10	269.54	270.00
b (L mg^−1)	0.2978	0.4576	0.5908	0.7361
𝑅^2	0.9973	0.9992	0.9988	0.9990
𝑅𝐿	0.0095	0.0062	0.0048	0.0039
Freundlich adsorption isotherms constants
𝐾𝐹mgg^−1Lmg^−11/𝑛	119.32	129.45	142.72	150.60
1/𝑛	0.1572	0.1635	0.1525	0.1423
𝑅^2	0.9909	0.9847	0.9787	0.9696