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

Table 2

Comparison of adsorption capacities of various adsorbents for MB.

Activated carbon source	𝑄𝑜 (mg g^−1)	Reference
Pea shell	246.91	This work
Walnut shells	3.53	33
Pistachio shells	129.0	20
Coir pith	5.8	24
Apricot stones	4.1	33
Almond shell	1.3	33
Hazelnut shell	8.82	33
Euphorbia rigida	114.45	45
Date pits	80.31	22
Mango seed kernel powder	142.86	25
Jute fiber	225.64	19
Coconut tree sawdust	4.70	17
Silk cotton hull	2.40	17
Sago waste	4.51	17
Maize cob	5.00	17
Banana pith	4.67	17
Date pits	123.10	22
Palm fibre	277.78	31
Bamboo dust	143.20	34
Coconut shell	277.90	34
Groundnut shell	164.90	34
Coconut coir dust	15.25	30
Rattan sawdust	294.12	18