Comparison Between Linear and Non-Linear Fitting Methods in Adsorption Process

Abstract

Methyl orange (AR M = 327.33 g/mol), methylene blue (AR M = 373.90 g/mol), H2SO4 (98 %), NaOH (AR), active carbon (powder, AR) were all purchased from Sinopharm Chemical Reagent Co., Ltd. All the reagents were used without further purification. Adsorption experiments: Methyl orange and methylene blue were dissolved in deionized water (pH = 7) to produce stock solutions, respectively.