The Freundlich and Langmuir isotherms obtained fromthe equilibrium
adsorption data of this study were given in Figs. 2–5. The
Freundlichand Langmuir constants whichare concluded fromthese
plots for different temperature and pH values were summarized in
Tables 6 and 7 along with the regression coefficients. It is observed
from isotherms given in Figs. 2–5 that both models indicate a
good representation of the experimental results by linear Langmuir
or Freundlich isotherm equations. But from the calculated
regression coefficients (R2), it can be calculated that Freundlich