Journal of Chemistry / 2018 / Article / Tab 2

Research Article

New Sustainable Biosorbent Based on Recycled Deoiled Carob Seeds: Optimization of Heavy Metals Remediation

Table 2

Chemical groups on the surface of the biosorbents.

BiosorbentCarboxylic groups (meq/g)Lactonic groups (meq/g)Phenolic groups (meq/g)Total acid groups (meq/g)Total basic groups (meq/g)

Raw-seeds0.40700.48800.49001.38500.3750
HCl-seeds0.38100.51500.52401.42000.3650
NaOH-seeds0.40900.48300.49901.39100.3870

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