Browsing by Author "Ogundele, Damilola Tope"

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    Fatty Acid Composition and Physicochemical Properties of Castor ( Ricinus Communis L. ) Seed Obtained from Malete, Moro Local Government Area, Kwara State. Nigeria
    (International Institute of Science, Technology and Education, 2013) Bale, Adebayo Tajudeen; Adebayo, Rofiat Tosin; Ogundele, Damilola Tope; Bodunde, Victoria Tosin
    The oil of the Ricinus communis L. seed was extracted by soxhlet method using N-hexane.The physicochemical characteristics of the castor oil were evaluated. The results showed that the castor seeds contain a relatively high percentage of total lipids content ; 47.8 % , iodine value ( 1.061 g/g ) , and saponification value ( 327.4 g/g ). The seed oil moisture content , acid value , density and free fatty acid ( % FFA ) were 0.3 % , 14.42 mg/g , 880 g/cm3 and 7.21 % , respectively.
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    Optimization of p-Nitroaniline Adsorption from Aqueous Medium by TiO2-Flamboyant Seeds Activated Carbon Composite
    (2022) Azeez, Samsudeen Olanrewaju; Jimoh, Akeem Adebayo; Saheed, Ismaila Olalekan; Ogundele, Damilola Tope; Adekola, Folahan Amoo; Abdulsalam, Zuliah Abiola; Ayinla, Kuranga Ibrahim
    Titanium (IV) oxide-flamboyant seeds activated carbon (TiO2-FSAC) composite was studied as a promising adsorbent for p-nitroaniline (p-NA) removal from aqueous media using batch technique. The surface characteristics of the composite were determined by Fourier Transform Infrared Spectroscopy, Scanning Electron Microscopy, Energy Dispersed X-ray Spectroscopy and Brunauer–Emmett–Teller surface area analysis. The results showed that TiO2-FSAC is highly porous with a surface area of 601.77 m2/g and pore diameter in the mesoporous region. Box-Behnken design (BBD) under Response Surface Methodology (RSM) was employed for the optimization of four operating parameters: initial p-NA concentration, pH, adsorbent dosage and time. The results revealed that the amount of p-NA adsorbed increased with an increase in initial p-NA concentration, low pH, and low adsorbent dosage and was not affected by time in the investigated range. The correlation between p-NA adsorption by TiO2-FSAC and the process variables was sufficiently established by the quadratic model with a high R2 value (0.973), which is in agreement with adjusted R2 (0.945). The optimum amount of p-NA adsorbed was 45.0 mg/g accomplished at Co = 300 mg/L, pH 2, 0.1 g adsorbent dosage and 362.5 min time.