TY - JA AU - El-Sayed,G.O. AU - Yehia,M.M. AU - Asaad,A.A. TI - Assessment of activated carbon prepared from corncob by chemical activation with phosphoric acid SN - 2212-3717 PY - 2014/// CY - Netherlands PB - Elsevier KW - Activated carbon KW - AGROVOC KW - Adsorption KW - Maize N1 - Peer review; Open Access N2 - Corncob, which is the main waste from corn agricultures in Egypt, has been used as a raw material for the preparation of different activated carbons. Activated carbons (ACs) were prepared by chemical activation with concentrated H3PO4 acid; followed by pyrolysis at 400, 500 and 600 °C. Different ACs have been used for the removal of methylene blue (MB) dye from aqueous solutions. Batch adsorption experiments were performed as a function of initial dye concentration, contact time, adsorbent dose and pH. Adsorption data were modeled using the Langmuir and Freundlich adsorption isotherms. Adsorption of MB on AC1 (R2=0.9868) and AC2 (R2=0.9810) followed Langmuir model with maximum monolayer sorption capacity of 28.65 and 17.57 mg/g, respectively. Adsorption onto AC3 was better fitted to Freundlich isotherm model (R2=0.9823) UR - https://doi.org/10.1016/j.wri.2014.10.001 DO - https://doi.org/10.1016/j.wri.2014.10.001 T2 - Water Resources and Industry ER -