Abstract
Adsorption process by activated carbon is widely used for removal of dyes. Because of economical limits, activated carbon derived from low cost materials seem to be economical. The aim of this work is preparation of activated carbon from poplar wood and investigation of its ability to removal of (AR18) dye. In this work, we prepared the activated carbon by chemical activation method in electric furnace. In addition we have investigated effect of various parameters such as pH, contact time, dye concentration and adsorbent dosage on dye removal. Langmuir and Freundlich isotherm models have been investigated. Pseudo-first order, pseudo-second order and modified pseudo-first order kinetic models have been used for experimental data. The results showed that removal efficiency was increased with increasing of adsorbent dosage, contact time and decreasing of pH, but with increasing of dye concentration, the removal efficiency was decreased. Adsorption isotherm models showed that Langmuir isotherm model was best fitted onto collected data (r2>0.978). In addition, kinetic models showed that sorption of AR18 onto activated carbon prepared from poplar wood follows the pseudo-first order model (r2>0.9758).
Highlights
Textile industries generate highly colored wastewaters that bearing organic and inorganic pollutants, so removal of dyes from these industries is an important practice due to its pollution of environment[1]
We investigate the preparation of activated carbon from poplar wood, which can be found in many places of Iran, and examined its efficiency for removal of an azo dye Acid Red 18 (AR18) from aquatic solution
In this study various parameters that were studied in this work are pH, initial dye concentration (25, 50, 75 and 100 mg/L), initial adsorbent dosage (0.6, 0.8 and 1 g) and contact time
Summary
Textile industries generate highly colored wastewaters that bearing organic and inorganic pollutants, so removal of dyes from these industries is an important practice due to its pollution of environment[1]. We investigate the preparation of activated carbon from poplar wood, which can be found in many places of Iran, and examined its efficiency for removal of an azo dye AR18 from aquatic solution. Investigation of several parameters such as pH of dye solution, contact time, initial dye concentration and activated carbon dosage
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
