Synthesis, characterization, and application of a zinc oxide–pyrrole–thiophene nanocomposite as an efficient adsorbent for the removal of tetracycline

Abstract

Adsorption of tetracycline (TC) from wastewater by the nanocomposite adsorbent material ZnO–Py–Th.

Polyethyleneimine-functionalized β-cyclodextrin porous polymers for enhanced elimination of U(vi) from wastewater

“…To learn more about the thermodynamic characteristics of U( vi ) adsorption, thermodynamical data of the Gibbs free energy change (Δ G 0 ), entropy change (Δ S 0 ) and enthalpy change (Δ H 0 ) were investigated using eqn (9) and (10). 55 Δ G 0 = Δ H 0 − T Δ S 0 where, K d is the distribution coefficient ( K d = q e / c e ), R (the molar gas constant) is 8.314 J mol −1 K −1 , and Δ H 0 and Δ S 0 are obtained by the slope and intercept of the 1/ T curve (Fig. 5), respectively.…”