Open AccessLinear and Non-linear Regression Analysis for the Kinetics of [AuCl4]- Removal by p-Hydroxybenzoate intercalated Mg/Al-Hydrotalcite
Author(s) -
Lutfi Aditya Hasnowo,
Sri Juari Santosa,
Bambang Rusdiarso
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/990/1/012017
Subject(s) - hydrotalcite , kinetics , linearization , linear regression , kinetic energy , thermodynamics , chemistry , nonlinear system , mathematics , linear equation , mathematical analysis , physics , statistics , organic chemistry , catalysis , classical mechanics , quantum mechanics
The best fit equations of linear and non-linear forms of the two widely used kinetic models, namely pseudo-first-order (PFO) and pseudo-second-order (PSO) equations, were compared in this study. The experimental kinetics of [AuCl 4 ] − removal by p -hydroxybenzoate intercalated Mg/Al-hydrotalcite was used for this research. R 2 coefficient was employed as error analysis methods to determine the best-fitting equations. The results show that the non-linear form was better at best-fitting than the linear form. The experimental kinetics may have been distorted by linearization of the linear kinetic equations, and thus, the non-linear forms of kinetic equations should be primarily used to obtain the adsorption parameters.