Figure 2
Effect of KOH concentration on the Cd(II) adsorption capacity of PBBC. Notes: PBBC—pristine banana straw biochar, MBBC0.25M—0.25 M KOH modified banana straw biochar, MBBC0.5M—0.5 M KOH modified banana straw biochar, MBBC0.75M —0.75 M KOH modified banana straw biochar.
