Removal of azo dye from aqueous solution by a low-cost activated carbon prepared from coal: adsorption kinetics, isotherms study, and DFT simulation

• Published in: Environmental science and pollution research international Vol. 28; no. 8; pp. 10234 - 10247
• Main Authors: Jan, Saeed Ullah, Ahmad, Aziz, Khan, Adnan Ali, Melhi, Saad, Ahmad, Iftikhar, Sun, Guohua, Chen, Cheng-Meng, Ahmad, Rashid
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.02.2021; Springer Nature B.V
• Subjects: Activated carbon; Adsorption; Aquatic Pollution; Aqueous solutions; Atmospheric Protection/Air Quality Control/Air Pollution; Azo Compounds; Azo dyes; Charcoal; Charge transfer; Coal; Configurations; Dyes; Earth and Environmental Science; Ecotoxicology; endothermy; energy; Enthalpy; Environment; Environmental Chemistry; Environmental Health; Environmental science; Hydrogen-Ion Concentration; Kinetics; Pollutants; Research Article; Sorbents; Spectroscopy, Fourier Transform Infrared; surface area; Surface charge; Surface chemistry; Thermodynamics; Waste Water Technology; Water Management; Water Pollutants, Chemical - analysis; Water Pollution Control; Zeta potential; Thermodynamics; Anionic dyes; DFT; Kinetics; Adsorption; Activated carbon

The high-risk organic pollutants produced by industries are of growing concern. The highly porous coal-based activated carbon (AC) having a specific surface area of 3452.8 m 2 /g is used for the adsorption of azo dye from synthetic solution. The sorbent is characterized through BET, SEM, TEM, XRD, F...