Adsorption Behavior and Adsorption Dynamics of Micrometer-Sized Polymer Microspheres on the Surface of Quartz Sand

The adsorption of polymer microspheres in a stratum can directly affect its action mode and performance the actual application process. Understanding pattern their mechanism facilitate optimization enhance use efficiency. Ultraviolet spectrophotometry was employed to measure static characteristics (PMS) on surface quartz sand. PMS capacity sand increased with increasing concentration. When concentration 1000 mg/L, equilibrium 402 μg/g, monolayer dominant. effect contact time investigated, fitting performed using isothermal thermodynamic model kinetic model. 800 mg/L tended equilibrate after 0.8 h sand, 1400 1 Good results process were obtained pseudo-first-order (PFO) model, pseudo-second-order (PSO) Elovich mixed-order (MO) effects temperature, particle size solid–liquid ratio, salinity examined. decreased environmental temperature. at interface an exothermic process, enthalpy negative. As mass ratio increased, decreased; low neutral pH conducive