Adsorption of methylene blue onto biomass-based activated carbon by FeCl3 activation: Equilibrium, kinetics, and thermodynamic studies

Adsorption of 4-Nitrophenol (PNP) Using Pilli Nut Shell Active Carbon

“…Moreover the ∆H values of adsorption of PNP with PAC (-17.338 kJ/mol) as well as CGAC (-8.430 kJ/mol) lie between 2.1 and 20.9 kJ/mol indicating that adsorption of PNP can be classified as physiosorption [40] for both PAC and CGAC. Furthermore, PAC shows higher adsorption enthalpy changes than the CGAC, which signifies that PAC has a stronger affinity for PNP than CGAC [41].…”

Microporous activated carbon from Siris seed pods by microwave-induced KOH activation for metronidazole adsorption

“…Hence, it has been necessary to investigate new precursors and new technologically viable and economically feasible production methods for low cost carbons. Nowadays, agricultural wastes are considered as promising precursors for low cost and high surface area activated carbons due to their high volatile matter and lignocellulosic contents and their renewable natures [2]. Microwave heating has been widely used in preparation and regeneration of activated carbon, where the conversion of energy is not by conduction or convection as in conventional heating, but by dipole rotation ionic conduction inside the particles.…”

Fixed-bed-column Studies in Laboratory and Pilot Scale for Methylene Blue Removal and Recovery by Untreated, Autohydrolized and Brine Hydrolized Spruce

“…here N (mg·L -1 ) is the initial or total adsorption capacity coefficient, also quoted as CuO [14]; C = (4) which is commonly used by researchers, because of its convenience in estimating the values of parameters K and N through linear regression either of ln[(C 0 / C i )-1] vs t or t vs x when the following rearrangement is adopted:…”