Fabrication Of Porous Adsorbent Material, EDTA-assisted MgO And Its Removal Behavior Towards MO And MB Dyes

Sustainable management and distribution of drinking water is highly vital for the sustainable development of big cities.To attain virtuous adsorption capability for the dyes,we have improved to manufacture hierarchically spongy Ethylenediamine tetra acetic acid（EDTA）encapsulated magnesium oxide（MgO）at three pH and cautiously probed the adsorption performance for anionic and cationic dye models;methyl orange（MO）and methylene blue（MB）.The average fraction porosity and the pore size declined with the upsurge of the feeding proportion of Mg²⁺/EDTA.FT-IR,BET,XRD and SEM were used for to characterize the samples.Pseudo-second-order kinetics and the Langmuir isotherm were applied to the adsorption of MO and MB onto various MgO samples.Among tested samples,MgO-EDTA（1:1）had the greatest experimental removal capacities of 4131.1mg/g for MO and 39.23 mg/g removal capacity for MB at the concentration rate of 500ppm and 200 ppm;respectively.Using the results of this research,a low-cost,multipurpose material for efficient water cleanup in a variety of sectors has been created.The disclosed technology undoubtedly facilitates large-scale manufacture of porous MgO microsphere adsorption material and several practical applications.