Application of Partial Least Squares-Kernel Calibration in Competitiven Adsorption Studies Using an Effective Chemically Activated Biochar

摘要

In this work, chemically activated pine wood was used to prepare biochar, which was used to study the competitive adsorption behavior of four colorants (allura red (AR), brilliant black (BB), tartrazine (TT), and sunset yellow (SY)). Dye concentrations in mixed solutions were simultaneously estimated by using partial least squares Kernel calibration. The analytical recovery of food dyes was 96.7-103.4% and prediction error was 1.4-9.4%. Adsorption isotherms of dyes (at pH 2 and 25 degrees C) fro