Sherif Ishola Mustapha
@unilorin.edu.ng
Lecturer, Faculty of Engineering and Technology
University of Ilorin
EDUCATION
PhD Chemical Engineering
RESEARCH, TEACHING, or OTHER INTERESTS
Chemical Engineering, General Chemical Engineering, Bioengineering, Catalysis
Scopus Publications
Scopus Publications
Ifeanyi Michael Smarte Anekwe, Stephen Okiemute Akpasi, Emeka Michael Enemuo, Darlington Ashiegbu, Sherif Ishola Mustapha, and Yusuf Makarfi Isa
Elsevier BV
I. A. Mohammed, S. I. Mustapha, F. A. Aderibigbe, H. U. Hambali, A. M. Afolabi, K. B. Muritala, and U. M. Aliyu
African Journals Online (AJOL)
As an alternative to the physical storage of hydrogen as compressed gas or liquid hydrogen requiring high-pressure tanks and cryogenic temperatures, the material-based storage of hydrogen in solids involves hydrogen uptake and release from the surface of adsorbents or within interstitials of hydrides. We report a hydrothermic reduction of rutile-ilmenite mineral into hydrogen-rich fibrous products, η-Ti2FeO0.2H2.8, in an ethanol-water system at 120°C for 4 hrs. As part of a project to generate hydrogen from water-ethanol system using advanced catalysts containing graphene oxide (GO) as carbon source, a system of 62.5 μg graphene oxide per g of rutile-ilmenite mineral was employed in a concentration of 50 mg/mL of ethanol-water solution. As well as in the original mineral, XRD of thermal annealed mineral between 500 and 800°C showed no hydride or phase change in rutile-ilmenite. With hydrothermal treatment of GO/rutile-ilmenite (50 mg/mL) in ethanol-water (1:1 v/v) at 120°C, a hydrogen-rich ferrotitanium hydride phase was formed, and there was a change in morphology from plate-like and granular particles into fibrous structures. Like the release of hydrogen by its ‘carriers’ (e.g., CaH2, NH4BH4, NaBH4, NH3, formic acid), it is anticipated that hydrogen was generated from the ethanol-water system in-situ, which reduced the rutile-ilmenite mineral into a hydride. EDX results showed that the reduction affected specifically the oxides of Fe and aluminosilicates in the mineral. The study demonstrated a possibility of in-situ hydrogen generation and storage via low-temperature graphene oxide hydrothermic reduction of rutile-ilmenite mineral in an ethanol-water system.
Usman Mohammed Aliyu, Sudesh Rathilal, Sherif Ishola Mustapha, Ronald Musamali, and Emmanuel Kweinor Tetteh
Elsevier BV
Sherif Ishola Mustapha, Ismail Rawat, Faizal Bux, and Yusuf Makarfi Isa
Springer Science and Business Media LLC
Fatai Alade Aderibigbe, , Tunmise Latifat Adewoye, Sherif Ishola Mustapha, Ishaq Alhassan Mohammed, Harvis Bamidele Saka, Mutiu Kolade Amosa, Ayoade Lateef Adejumo, Rasheed Uthman Owolabi, Shalom Boluwatife James,et al.
Elsevier BV
Mixed solid oxides are known for their excellent catalytic property and applications in environmental remediation. This study presents a green-synthesis route for magnesium oxide–titanium oxide, a mixed oxide here demonstrated to possess high performance of phenol removal from hydrocarbon refinery process wastewater. Mixed oxide (MgO-TiO2) was prepared by using the whole extract from leaves of Piliostigma Thonningii as reducing agent. A structural attribute of the mixed oxide was investigated using X-ray Diffractometer, High-Resolution Scanning Electronic Microscopy and Energy Dispersive X-ray. Petroleum refinery raw wastewater having phenol concentration of 19.961 mg/L was treated using the green-synthesized mixed oxide. Adsorptive phenols removal up to 99.5% was achieved with a dosage of 0.04 g/100 mL at temperature of 35 °C, and contact time of 1.167 h. By this, the treated water meets the standard acceptable phenol concentration (0.1 mg/L) in wastewater of hydrocarbon refinery.
Fatai Alade Aderibigbe, Harvis Bamidele Saka, Sherif Ishola Mustapha, Mutiu Kolade Amosa, Suleiman Shiru, Idowu Abdulfatai Tijani, Esther Oluwabunmi Babatunde, and Bisola Taibat Bello
Wiley
Sherif Ishola Mustapha, Usman Aliyu Mohammed, Ismail Rawat, Faizal Bux, and Yusuf Makarfi Isa
Elsevier BV
Sherif Ishola Mustapha, Usman Aliyu Mohammed, Faizal Bux, and Yusuf Makarfi Isa
Elsevier BV
S. I. Mustapha, I. A. Mohammed, F. A. Aderibigbe, T. L. Adewoye, F. O. Omoarukhe, and A. O. Sowole
African Journals Online (AJOL)
Hydrothermal gasification also known as supercritical water gasification (SWG) has been considered a promising approach for converting wet biomass such as sugarcane bagasse into high-quality syngas. This study presents the thermodynamic modeling of the hydrothermal gasification of sugarcane bagasse using Aspen Plus. The effects of process parameters on the composition and yield of product gases were also investigated. It was found that the effect of temperature and biomass concentration were significant in the production of hydrogen-rich gas, while less impact was observed with pressure. The hydrogen gas (H2) produced with the highest mole fraction (56.70 mol%) and yield (103.26 kmol/kg) was obtained at 750°C and low biomass concentration of 10 wt%, while the lowest yield (1.52 kmol/kg) and mole fraction (2.45 mol%) of H2 were obtained at 450°C and high biomass concentration of 50 wt%. Findings from this study also showed that the highest net calorific value (17.55MJ/kg) was reached at 450˚C and 50 wt% of biomass concentration. This study would help to consolidate research on hydrothermal gasification of sugarcane bagasse and optimization of experimental processes and also serve as an important benchmark in the utilization of biomass as a clean energy source for future projects.
Sherif Ishola Mustapha, Faizal Bux, and Yusuf Makarfi Isa
Informa UK Limited
Abstract The utilization of algal biomass residue after lipid extraction for other purposes can lead to maximum usage of algal biomass and economically beneficial microalgal biodiesel technology. In this study, the performance and economic potential of the conversion of Scenedesmus sp. lipids to biodiesel over lipid extracted algae (LEA) derived catalysts were investigated. The lipid extracted algae (LEA) derived catalysts (Ni/C and Ni/Fe3O4-C) were synthesized by impregnation technique and characterized using different analytical tools. The biodiesel conversion of 96.43%, 98.5% and 95.12% was achieved using biochar (C), Ni/C, and Ni/Fe3O4-C respectively under the following conditions: reaction time (4 h), temperature (60 °C), methanol to oil molar ratio (30:1) and catalyst dosage (15% w/w of oil). The findings from this study have shown that the use of lipid extracted algae derived catalysts reduced the unit production cost of microalgal biodiesel from 2.03 $/kg to (1.70–1.74 $/kg) when compared to homogeneous catalyst. Among the lipid extracted algae derived catalysts, the use of Ni/C catalyst gave the lowest unit production cost (1.70 $/kg) for biodiesel production from microalgae. The recyclability potential of the LEA derived catalysts could improve the economic viability of the process. The payback period in the range of 1.32 yr–5.57 yr obtained using LEA derived catalysts was below the lifespan of the project (10 years), suggesting that the proposed microalgal biodiesel production is economically feasible.
Sherif Ishola Mustapha, Ismail Rawat, Faizal Bux, and Yusuf Makarfi Isa
Elsevier BV
Sherif Ishola Mustapha, Usman Aliyu Mohammed, Faizal Bux, and Yusuf Makarfi Isa
Wiley
This study presents the simulation of hydrothermal gasification (HTG) of Scenedesmus obliquus microalgae and their derivatives using Aspen Plus V11. The effect of operating parameters such as temperature, pressure, and biomass concentration on the yield and composition of gaseous products using whole algae, lipid, and lipid extracted algae (LEA) as feedstocks was examined. The results showed that reaction pressure exhibited minimal impact whereas temperature, biomass concentration, and feedstock composition had significant effects on the composition of gaseous products. It was also found that a low temperature (400 °C) and biomass concentration of 40 wt% favored the production of methane‐rich gas. In contrast, high temperature (700 °C) and low biomass concentration (10 wt%) favored hydrogen‐rich gas production in all the three feedstocks considered. The highest mole fraction achieved for CH4 was 53.45, 61.70, and 52.20 mol%, which corresponded to a CH4 yield of 31.14, 56.90, and 30.15 mmol g−1 for whole algae, lipid, and LEA respectively. For H2 rich gas production, the highest mole fractions achieved were 55.77, 52.29, and 55.34 mol%, which correspond to H2 yields of 75.44, 105.51, and 73.49 mmol g−1 for whole algae, lipids, and LEA, respectively. The ranking order for the yield and lower heating value of the product gas from the HTG process is lipid > whole algae > LEA. This study has shown that hydrogen‐rich and methane‐rich gas can be produced from the hydrothermal gasification of microalgae as a function of the reaction conditions and feedstock composition. © 2021 Society of Chemical Industry and John Wiley & Sons, Ltd
Fatai A. Aderibigbe, Suleiman Shiru, H. B. Saka, M. K. Amosa, Sherif Ishola Mustapha, Mohammed I Alhassan, Ayoade L. Adejumo, Morufudeen Abdulraheem, and R. U. Owolabi
Wiley
The latest advances on graphene-based materials and their applications for diagnosis, detection, decontamination, and protection against COVID-19 are presented. Further, the main challenges and the perspective for fundamental design and fabrication of technologies based on graphene-based nanomaterials for COVID-19 are discussed.
Sherif Ishola Mustapha, Fatai Alade Aderibigbe, Tunmise Latifat Adewoye, Ishaq Alhassan Mohammed, and Theresa Ogonye Odey
Elsevier BV
Fatai Alade Aderibigbe, Sherif Ishola Mustapha, Tunmise Latifat Adewoye, Ishaq Alhassan Mohammed, Adebola Bukola Gbadegesin, Faith Emmanuel Niyi, Opeyemi Idowu Olowu, Akinpelumi Gabriel Soretire, and Harvis Bamidele Saka
Greenwave Publishing of Canada
Biodiesel properties are in general attributed to the composition and properties of the oil feedstock used, overlooking the possible impacts of the catalyst preparation details. In light of that, the impacts of different catalyst preparation techniques alongside those of different support materials on the yield, composition, and fuel properties of biodiesels produced from the same oil feedstock were investigated. More specifically, tri-metallic (Fe-Co-Ni) catalyst was synthesized through two different techniques (green synthesis and wet impregnation) using MgO or ZnO as support material. The generated catalyst pairs, i.e., Fe-Co-Ni/MgO and Fe-Co-Ni/ZnO prepared by wet impregnation and Fe-Co-Ni-MgO and Fe-Co-Ni-ZnO prepared by green synthesis (using leaf extracts) were used in the transesterification process of Jatropha curcas oil. Detailed morphological properties, composition, thermal stability, crystalline nature, and functional groups characterization of the catalysts were also carried out. Using Box-Behnken Design response surface methodology, it was found that the green-synthesized Fe-Co-Ni-MgO catalyst resulted in the highest biodiesel yield of 97.9%. More importantly, the fatty acid methyl ester (FAME) profiles of the biodiesels produced using the four catalysts as well as their respective fuel properties were different in spite of using the same oil feedstock.
Sherif Ishola Mustapha and Yusuf Makarfi Isa
Informa UK Limited
Abstract Solvent toxicity is of major concern in the extraction of lipid from algae biomass via the solvent extraction technique. This study was carried out to determine the optimal solvent mixture (chloroform, methanol, ethanol, and dichloromethane) composition with less toxicity for the extraction of lipids from Scenedesmus obliquus microalgae. Optimization of the solvent mixture composition was performed using augmented simplex centroid design and the influence of cell disruption on lipid yield was assessed. The eco-toxicity of the solvent mixtures was assessed using thermodynamic prediction model. The optimal lipid yield of 19.4% lipid g-1 DCW (dry cell weight) was obtained using solvent mixture composition (1:5:1:1 v/v) chloroform/methanol/ethanol/dichloromethane. The cost estimation and environmental risk parameter values obtained from the use of proposed quaternary solvent mixture composition indicated that lower cost and less toxicity were achieved when compared with the commonly used chloroform-methanol mixture composition. Microwave-assisted lipid extraction gave 55.67% higher lipid recovery from microalgae and the quality of the extracted lipid was unaffected when compared with the conventional solvent extraction. The fatty acid profile revealed the extracted lipids as an appropriate feedstock for biodiesel production. Applicability of lipid extracted biomass obtained using the proposed technique is confirmed by SEM and FTIR analyses.
R. O. Yusuf, J. A. Adeniran, S. I. Mustapha, and J. A. Sonibare
Wiley
M. H. Alhaji, K. Sanaullah, A. Khan, A. Hamza, A. Muhammad, S. I. Mustapha, A. R. H. Rigit, and S. A. Bhawani
Springer Science and Business Media LLC
M. H. Alhaji, K. Sanaullah, A. Khan, A. Hamza, A. Muhammad, M. S. Ishola, A. R. H. Rigit, and S. A. Bhawani
Springer Science and Business Media LLC
Jamiu Adetayo Adeniran, Rafiu Olasunkanmi Yusuf, Sherif Ishola Mustapha, and Jacob Ademola Sonibare
Kaunas University of Technology (KTU)
Emission of volatile organic compounds from the use of household spray products has a negative impact on health and environment. Total Volatile Organic Compounds (TVOCs) concentration levels emitted from forty –five registered consumer spray products in Nigeria were measured using MultiRAE TVOCs gas monitor. Human exposure to emitted TVOCs through inhalation, ingestion or through dermal route was evaluated using the ConsExpo spray model. The average TVOCs emission from all the investigated samples was in the range of 1664 and 560994.7 µg m-3 with an average of 63632.2 µg m-3. Generally for all the samples considered, the average released concentrations, inhaled dose, dermal doses, and average deposition rates were in the ranges of 1.83E+04 – 1.00E+06 µg m-3; 1.47E+03 – 8.01E+04 µg ; 3.41E+04 – 4.84E+05 µg; and 1.79E+01 – 1.01E+03 µg s-1, respectively. The results provide information that could be used to significantly improve human exposure and risk assessment to emitted aerosols from spray products.DOI: http://dx.doi.org/10.5755/j01.erem.73.4.19316