Removal of methylene Blue Using Adsorption onto Activated Carbon Derived From juniper berries

Abstract

The present study reports the preparation of three activated carbons produced from Juniperus berries, using KOH as activating agent and its ability to remove Methylene Blue from aqueous solutions.The work aimed to examine how varying carbonization temperatures impact the pore structure of activated carbon and were selected in the range of 400–600 °C.Several physical properties have been calculated, such as Bulk density, Humidity contentand,Burn-offfor obtained activated carbons, and characterized byN2 adsorption–desorption isotherms at 77 K, BET, SEMand CHNS. The results show that activated carbons presents microporous features with BET surface area which were determined by application of the Brunauer–Emmett–Teller (S_BET)was achieved 145.8329 m2/g. We examined the impact of different experimental variables, including adsorbent quantity and initial dye concentration. Maximum dye removal of 69.59% isobtained for the activated carbon prepared at 600°C.