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Table 2 Experimental design matrix and responses for the preparation of Dialium Guineense pods activated carbon (DGPAC)

From: Screening of factors that influence the preparation of Dialium guineense pods active carbon for use in methylene blue adsorption: a full factorial experimental design

Run order [Activating agent] M Activation time (min) Activating agent Yield (%) Adsorption capacity (mg/g)
1 1 90 NaOH 32.40 4.607
2 5 90 H3PO4 23.45 5.513
3 5 30 NaOH 26.00 9.628
4 5 30 H3PO4 27.99 7.003
5 3 60 NaOH 27.26 4.550
6 1 30 NaOH 41.24 2.920
7 1 90 H3PO4 32.74 2.700
8 5 90 NaOH 25.14 9.534
9 1 30 H3PO4 44.58 2.365
10 3 60 H3PO4 30.72 2.090