Feb 02, 2020 The key difference between adsorption and desorption is that adsorption refers to the process by which some solids hold the molecules of a gas or liquid or solute as a thin film, whereas desorption refers to the release of an adsorbed substance from a surface.. Adsorption and desorption are chemical processes that are opposite to each other. We can Thermodynamically unstable intermediate of fast and reversible two-electron electrode reaction can be stabilized by the adsorption to the electrode surface. In square-wave voltammetry of this reaction mechanism, the split response may appear if the electrode surface is not completely covered by the adsorbed intermediate. The dependence of the difference between the net adsorption capacity and kinetics on NOM and SOC is crucial for future studies and usage of it. The main objectives of this study were to (i) understand the impact of crushing on carbon characteristics (ii) investigate the SPAC adsorption capacity and rate for ... hydrogen/electron donor/acceptor ability on SPAC and PAC.