Sorption of Ibuprofen by chemically treated maize cob

• DOI: 10.1016/j.sajce.2023.09.002
• Publication Date: 2023-09-16T16:10:15Z
• Authors: Patience Mapule T...; Nomkhosi Anele Ha...; Precious Nokwethe...; Pardon Nyamukamba; Sekomeng Johannes...
• Keywords: Ibuprofen

Potable water availability has been drastically reduced because of the indiscriminate discharge pharmaceuticals into rivers and surrounding areas. Polluted disrupts aquatic life affects human health. This study investigated potential using NaOH-activated maize cobs for removing Ibuprofen (IBP) from a synthetic solution. The sorption capacity base-treated cob (BMC) untreated (UMC) was compared. Batch adsorption experiments were conducted several parameters, including range pH values (2-10), contact time (1-100 min), initial concentration (15-60 mg/L) temperatures (25-65 ◦C). Ibuprofen's highest (44.92 mg/g) obtained with BMC at 8.0, whilst by UMC 41.81 mg/g 7.99. trend both indicated that uptake increased concentrations 34.77 28.66 mg/g, respectively. non-linear form Freundlich isotherm model best fits experimental results, describing favorability chemical interactions between IBP adsorbents. removal fast, kinetics based mainly on pseudo-first-order capacities 45.96 42.30 UMC. negative ∆Go ∆H° proved process spontaneous exothermic, maximum 44.07 40.33 25 ℃ UMC, chemically treated showed better than studies overall 91.07 % 90.67 research can be used as an adsorbent solutions.