TY - JOUR AU - Ho, Soonmin AU - Jani Saad, Mohamad PY - 2022/12/27 Y2 - 2024/03/29 TI - A Review on Heavy Metal and Dye Removal via Activated Carbon Adsorption Process JF - Asian Journal of Chemistry JA - ajc VL - 35 IS - 1 SE - Articles DO - 10.14233/ajchem.2023.24019 UR - https://asianpubs.org/index.php/ajchem/article/view/35_1_1 SP - 1-16 AB - <p style="text-align: justify;">Activated carbon could be prepared by using various precursors, which contained carbonaceous materials. In this work, preparation process as well as properties of the obtained activated carbon, removal of heavy metal ions and toxic dyes were reported. The adsorption process was affected under different conditions such as carbonization process, activating agent, adsorbent dose, adsorbate’s concentration, agitation process and the pH value. The adsorption data could be observed well fitted with Langmuir, Freundlich, pseudo second order kinetic, pseudo-first order kinetic, Temkin model and other isotherms, if showed the highest correction efficiency value. The spontaneous (<span style="font-family: Symbol;">-Δ</span>G), increase in randomness (<span style="font-family: Symbol;">Δ</span>S), endothermic (<span style="font-family: Symbol;">Δ</span>H) and exothermic (<span style="font-family: Symbol;">-Δ</span>H) could be determined <em>via</em> thermodynamic studies.</p> ER -