Browsing by Author "Aderibigbe, Fatai Alade"

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    An Investigation of the Analytical Potentials of Flower Extracts as Bio-Indicators in Acid Base Titration
    (School of Science and Engineering, Southeast University, Dhaka, Bangladesh, 2018) Owolabi, Rasheed Uthman; Uthman, Mohammed Awwalu; Adejumo, Ayoade Lateef; Aderibigbe, Fatai Alade; Uba, Chinazom Mmasichukwu; Kehinde, Abiola John
    This study investigates the potentials of flower extracts namely, Hibiscus Rosa-sinensis (red hibiscus flower), Plumeria Alba (White Frangipani flower), Bombax Buonopozense (Red flower silk cotton flower) Tabebuia Rosea (Pink trumpet flower) and Tecoma Stans (Yellow bells flower) as bio-indicators and substitutes for commonly used synthetic indicators such as methyl orange and phenolphthalein. The bio-indicators were prepared through sun-drying, pulverisation and solubilisation of the flower petals in solvents (acetone, ethanol, water, acetone/ethanol mixture and ethanol/water mixture) of various solvatrochromic parameters followed by strong agitation at room temperature.Titration of strong acid against strong base was carried out using the prepared five different indicators and the synthetic indicators (methyl orange and phenolphthalein) to serve as control. Plumeria Alba (White Frangipani flower) petals dissolved in ethanol was found to be a highly promising bio- indicator with a competing average titre value of 29.50 cm3 against methyl orange with average titre value of 29.30 cm3.The Fourier transform infra red study shows that the presence of the C=C stretch and vibration band at 1605 cm-1 found in the synthetic indicators used was also present in PLA flower extract. A regression model in terms of solvent polarity, Hasen dispersion bond solubility parameter and and bio-indicator pH was developed for the prediction of average titre values.The model was found to give excellent prediction only for bio-indicators obtained from solvent of low (<25) polarity index.
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    BIODIESEL PRODUCTION FROM PALM KERNEL OIL USING BENTONITE CLAY-SUPPORTED FE-CO NANOCATALYST
    (LAUTECH Journal of Engineering and Technology, 2020) Aderibigbe, Fatai Alade; Adewoye, Tunmise Lateefat; Mustapha, Sherif Ishola; Muhammed, Alhassan Ishaq; Amosa, Mutiu Kolade; Saka, Harvis Bamidele; Mohammed-Nuhu R.A.; Adejumo, Ayoade Lateef; Owolabi, Rasheed Uthman
    This study is focused on the development of a heterogeneous Fe-Co bimetallic nanoparticle on Pindiga bentonite clay support to be used in the production of biodiesel. The local clay was beneficiated and used in the preparation of catalyst by wet impregnation method. The X-ray Fluorescence analysis (XRF) of the bentonite clay showed the presence of several metals and metallic oxides with good catalytic effect. Characterization of the prepared catalyst using Fourier Transform Infared Ray (FTIR), Energy Dispersive Spectrometer, (EDS) X-Ray Dispersion (XRD) and Scanning Electron Microscopy (SEM) confirmed the functional groups, elemental compositions, crystallinity, and morphology of the catalyst respectively. The catalyst was evaluated in biodiesel production using Box-Behnken optimization by varying the methanol: oil mole ratio, reaction temperature, reaction time, and catalyst concentration. An optimum yield of biodiesel (93.8 %) was obtained at process condition of 15:1 methanol: oil mole ratio, 55 °C reaction temperature, 1 h, reaction time, and 15 % (w/w) catalyst concentration. Physicochemical properties of the biodiesel produced using the developed Fe-Co/ bentonite nanocatalyst showed that the biodiesel is of good quality. This was further confirmed by the FAMEs profile. Therefore, the Fe-Co/bentonite nanocatalyst showed potential application as heterogeneous nanocatalyst for the trans-esterification of vegetable oil to biodiesel, an alternative and sustainable replacement for conventional petroleum diesel.
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    BIOREMEDIATION AND RECYCLING OF TREATED WASTEWATER IN AN AQUAPONICS SYSTEM
    (School of Science, Olusegun Agagu University of Science and Technology, Okitipupa, Ondo State, 2021) Aderibigbe, Fatai Alade; Saka, Harvis Bamidele; Sunnie- Ododo, Richies E.; Sunnie- Ododo, Monica O.; Bello, Taibat Bisola; Olufowora, Fatima O.; Adebayo, Rasheedat O.; Tijani, Abdulfatai Idowu
    This study highlighted bioremediation of aquaponics wastewater and its re-use by providing a breeding compartment for the sh, plant and bacteria. The aquaponics wastewater from the sh, bio-remediated water from the bio-lter and water from the plant pots that recycled back to the sh tanks were characterized. An aquaponics setup was made to have three sh tanks and nine plant pots with three different bed media of gravel, periwinkle and palm kernel shell to hold the plant without soil. As the shes grew, nitrite and nitrate concentrations signicantly increased from 0.00 to 10.66 mg/L and from 0.00 to 30.13 mg/L respectively. The plants show a signicant increase to a maximum height growth of 22.86 cm for periwinkle, 20.24 cm for gravel, and 30.48 cm for palm kernel shells bed in each of the beds. However, the palm kernel shells bed yielded the best plant growth measured up to 30.48 cm height. Atomic absorption spectrophotometer (AAS) analysis shows that plants used up essential nutrients like zinc, iron, and potassium from the bio-remediated water after the ninth week. For kinetic study, Line Weaver-Burke plot of reciprocals of the data was plotted to examine the possibility of the reaction tting into the Michaelis-Menten model. V was obtained to be 19.12 % which indicates the minimum max concentration of substrate at which there will be maximum oxidation. K obtained to be 0.97 indicates the s substrate concentration at which half the bacteria's active sites are occupied by a substrate. This conrmed that the reaction in the system follows the rst order reaction so the behavior of the system's reaction can be predicted over a desired time interval; Microbial nitrication shows Michaelis-Menten kinetics. JOURNAL OF THE SCHOOL OF SCIENCE Volume 3, Issue 2. November, 2021 ISSN: 2714-3716
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    Current Trends and New Perspectives in Biodiesel Production: A Focused Review on Interesterification Reaction
    (Proceedings of the Annual Conference of Nigerian Society of Chemical Engineering Held at Eko Hotel, 2021) Aderibigbe, Fatai Alade; Bello, Bisola Taibat; Adebayo, Rashidat O.; Olufowora, Fatimah O; Saka, Harvis Bamidele; Amosa, Mutiu Kolade; Karimu, Olatokunbo S.
    The consumption of energy has risen to 12 billion tons/year due to the ever-increasing population and urbanization which has directly led to more energy demand. Hence, there is an obvious need for an alternative source of fuel energy. One of the best alternatives is the use of renewable fuel energy. Biodiesel is an example of a renewable fuel energy which is produced from biomass by different technologies such as direct blending of oil, emulsification, pyrolysis, and transesterification. However, the drawback of these methods has propelled research experts to persistently search for better technologies. Over the years, transesterification reaction methods have been globally identified for in biodiesel production. Nonetheless, its by-product named glycerol has limited its utilization in biodiesel production. Therefore, it has been reported that the integration of glycerol into biodiesel composition may be a better option. In this review, the latest biodiesel production technology discussed is the interesterification reaction. This method integrates the by-product (glycerol) by producing a glycerol free Fatty Acid Methyl Esters (FAME), triacetin which is a useful fuel additive is produced instead. After the production of biodiesel and triacetin through the interesterification reaction route, there is always no need to separate both products which makes this process interestingly more sustainable and economical. The current trends of this production technology are also expounded.
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    HETEROGENEOUS CATALYSIS USING BENTONITE-SUPPORTED Fe-Co-Ni TRIMETALLIC NANOPARTICLES
    (Alma Mater Publishing House "Vasile Alecsandri" University of Bacau, 2021) Aderibigbe, Fatai Alade; Adewoye, Tunmise Latifat; Mustapha, Sherif Ishola; Muhammed, Alhassan Ishaq; Saka, Harvis Bamidele; Ajala, Elijah Olawale; Oluwaseyi, Soile Samuel
    Abstract: Herein, the synthesis and characterization of a bentonite-supported Fe-Co-Ni trimetallic nanocatalyst applied in transesterification reaction was reported. The synthesized heterogeneous catalyst was used to investigate the production of biodiesel by varying the reaction parameters using Box-Behnken design response surface methodology (RSM-BBD). An optimum biodiesel yield of 95.2 % was obtained at methanol to oil ratio of 10:1, reaction time of 2 hours, reaction temperature of 55 ℃ and catalyst concentration of 5 % (w/w of the oil). The biodiesel produced was later analysed using GC-MS analysis and the results shows a fatty acid methyl esters (FAME) profile that confirms the presence of biodiesel.
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    Kinetic Study of the Transesterification of Waste Cooking Oil
    (Department of Mechanical Engineering, Gen. Abdusalami Abubakar College of Engineering, Igbinedion University, Okada, Edo State, Nigeria, 2022) Aderibigbe, Fatai Alade; Saka, Harvis Bamidele; Mustapha, Ishola Sherif; Mohammed, Alhassan Ishaq; Amosa, Mutiu Kolade; Adeniyi, Adewale George; Ajala, Elijah Olawale; Babatunde, Esther Olubunmi; Solomon, Bamidele Ogbe
    The rate and cost of biodiesel production has been hampered by the nature of the catalysts and feedstocks used. The bifunctional catalyst prepared from the mixture of 40 wt% sulphonated corncob (acid source) and 60 wt. % calcined cowbone (base source) was employed in the kinetic studies of the waste cooking oil transesterification for biodiesel production. The kinetic reaction tends towards fitting into a pseudo-first order reaction with activation energy (Ea) and collision factor of 21.4833 kJ/mol and 0.4909𝑠−1 , respectively. The effects of each parameter on the production of biodiesel were highlighted. The physicochemical properties such as the flashpoint (403 K), pour point (281.2 K) and cloud point (283.11 K) of the synthesized biodiesel were also obtained. Furthermore, a test on reusability was performed for the bifunctional catalyst and it was found to retain its catalytic potential until the fifth cycle with a percentage catalyst loss of 7 %. This result indicates that the bifunctional catalyst was effective in the kinetic study of the transesterification of waste cooking oil.