Add time:09/05/2019         Source:sciencedirect.com

Experimental design has been applied to consider any possible interaction between process parameters with fewer experiments as well as to create a response model influenced by several factors and to optimize the response. In this study, response surface methodology (RSM), which is cost-effective and less laborious for process optimization has been applied to observe the performance of amino-functionalized poly (glycidyl methacrylate) as adsorbent (AR) in the 2,4-dichlorophenoxyacetic acid (2,4-D) adsorption from aquatic media in terms of adsorbent dose (0.0125–0.05 g), temperature (20–30 °C) and stirring speed (100–200 rpm). The greatest adsorption capacity was calculated as 99.4470 mg g−1 for 100 mg/L solution under the optimal conditions (0.05 g of adsorbent and 100.01 revolution speed per minute at 28.725 °C). on the other hand, experimental outcome displayed that 2,4-D adsorption on the adsorbent was notably quick, where >83% of the adsorption occurred within the first 15 min, and reached almost equilibrium at 60 min and the adsorbent had a relatively high adsorption capacity changing between 100 and 450 μmol/g (20–100 mg g−1) according to adsorbent dosage. The rate of adsorption was represented by both pseudo-second-order and Elovich models more efficiently than the pseudo-first-order kinetic model. The equilibrium data were found to be compatible with the relevant isotherm models such as Langmuir (1–4), Freundlich and Dubinin-Radushkevich (DRK). The findings of the thermodynamic study indicate that the concerned adsorption system is applicable, endothermic and enthalpy driven.

We also recommend Trading Suppliers and Manufacturers of COPPER II METHACRYLATE, MONOHYDRATE (cas 19662-59-0). Pls Click Website Link as below: cas 19662-59-0 suppliers