eprintid: 14222 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/01/42/22 datestamp: 2023-11-10 03:28:48 lastmod: 2023-11-10 03:28:48 status_changed: 2023-11-10 01:56:20 type: article metadata_visibility: show creators_name: Baloo, L. creators_name: Isa, M.H. creators_name: Sapari, N.B. creators_name: Jagaba, A.H. creators_name: Wei, L.J. creators_name: Yavari, S. creators_name: Razali, R. creators_name: Vasu, R. title: Adsorptive removal of methylene blue and acid orange 10 dyes from aqueous solutions using oil palm wastes-derived activated carbons ispublished: pub keywords: Activated carbon; Agricultural wastes; Aromatic compounds; Citrus fruits; Dyes; Palm oil; Pollution control; Stripping (dyes), Acid Orange 10; Activation process; Adsorptive removal; Contact time; Dyes adsorptions; Empty fruit bunches; Mesocarp fiber; Methylene Blue; Oil palm waste; Toxic dyes, Adsorption note: cited By 80 abstract: Presence of toxic dyes in industrial wastewaters deteriorates the environment. Wastewater pollution control using locally obtainable agricultural by-products could be an eco-friendly and sustainable strategy. Efficiencies of activated carbons (AC) developed from empty fruit bunches (EFB) and mesocarp fibers (MF) of oil palm were evaluated in methylene blue (MB) and Acid orange 10 (AO10) dyes removal. Impacts of operational parameters including adsorbent dose, pH, initial concentration of dyes, and contact time were examined on dyes adsorption. Maximum adsorption values of MB (24.00 mg/g) and AO10 (18.76 mg/g) were achieved at pH 2 and 3, respectively, 50 mg/L initial dyes concentration, adsorbents dosage of 5 g/L, and 90 min contact time. Evaluation of adsorption isotherms revealed that the Freundlich model provided the best fit to the empirical data (R2 � 0.692). MB isotherm through MF, however, was better represented by Langmuir model (R2 = 0.979). MF activated carbon showed higher capacity in immobilization of both dyes probably due to its larger surface area (552.72 m2/g) and porosity (0.4458 cm3/g). Dye adsorption on to the activated carbons go along with pseudo-second order kinetic model. © 2021 THE AUTHORS date: 2021 publisher: Elsevier B.V. official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85109088991&doi=10.1016%2fj.aej.2021.04.044&partnerID=40&md5=9c7bc6a0e95e9a884b3c31b71638b578 id_number: 10.1016/j.aej.2021.04.044 full_text_status: none publication: Alexandria Engineering Journal volume: 60 number: 6 pagerange: 5611-5629 refereed: TRUE issn: 11100168 citation: Baloo, L. and Isa, M.H. and Sapari, N.B. and Jagaba, A.H. and Wei, L.J. and Yavari, S. and Razali, R. and Vasu, R. (2021) Adsorptive removal of methylene blue and acid orange 10 dyes from aqueous solutions using oil palm wastes-derived activated carbons. Alexandria Engineering Journal, 60 (6). pp. 5611-5629. ISSN 11100168