“…13, the experimental data could be well tted by Langmuir isotherm model as well as Freundlich isotherm model (R 2 values were in the range of 0.98-0.99), which indicated that both Langmuir and Freundlich isotherm models were obeyed, suggested that the adsorption of Cr 6+ by Zn(II) dithiocarbamate/ZnS nanocomposite was homogeneous and multilayer in nature. 43 The results illustrated that the maximum adsorption amount of Cr 6+ by Zn(II) dithiocarbamate/ ZnS nanocomposite was 50.176, 57.208, 63.654 and 75.301 mg g À1 at 293 to 323 K, respectively.…”