Browsing by Author "SHUAIB-BABATA, Yusuf Lanre"
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Item Corrosion inhibition efficacy of hybrid organic extracts from prosopisafricana and citrulluslanatus on mild steel in acidic medium(Faculty of Engineering, “Dunarea De Jos” University of Galati Romania, 2023-03-15) SHUAIB-BABATA, Yusuf Lanre; Ayinde, I. V.; Busari, Y. O.; Ameen, M. O.; Yahya, R. A; Ambali, I. O.; Aremu, N. I.; Abdulraman, S. O; Ajao, K. S; Garuba, A. A.Each of Prosopis Africana pod extract (PAPE) and Citrulluslanatus (WMPE) performed quite well as green inhibitors in the electrochemical corrosion in acidic solution at ambient temperature in previous research. However, the hybridization of these compounds was varied with the concentration ratio in this study to optimize the efficiency of the green inhibitor in a hydrochloric acid medium using mild steel. The extraction process of the inhibitor samples was carried out with the Soxhlet apparatus using n-hexane as the solvent. Furthermore, the potential inhibition efficiency was monitored using various corrosion measurement techniques at room temperature. The inhibitive response of the extracts could be attributed to the adsorption of the extracts’ components on mild steel surface by physisorption mechanism according to the Langmuir adsorption isotherm model. The results revealed that inhibition efficiency (IE%) depends on the concentration of the extracts. The peak IE% values were obtained with a hybrid ratio of 3:1 (PAPE: WMPE) for gravimetric technique. The Tafel polarization and gasometrical measurement technique is 96.7%, 98.5% and 83.1% respectively at the concentration of 1.0 g/L, which are above the peak IE% for PAPE (93.7%, 80.96% and 77.8%) and WMPE (92.7%, 80.5% and 75.6%)Item IMPACTS OF COVID-19 PANDEMIC ON NIGERIA’S ECONOMY: EFFECTIVE FOUNDRY TECHNOLOGYAS A SUSTAINABLE SOLUTION(Faculty of Engineering, “Dunarea De Jos” University of Galati Romania, 2022-03-15) SHUAIB-BABATA, Yusuf Lanre; Busari, Y. O.; MAHAMOOD, R. M.; YARU, S. S.; ABDULQADIR, L. B.; AMBALI, I. O.; AJAO, K. S.; ABDULRAMAN, S. O.This study considered the effect of the Covid-19 pandemic ontheeconomy of Nigeria and investigated the effective application of foundry technology to proffer a sustainable solution to the problem. Domestication of production of motorcycle components, being a significant means of transportation that is required for the development of any society was considered. Aluminium scraps from a waste dump and Belle and Oyun natural moulding sands in Kwara State, Nigeria, which have been previously recommended for non-ferrous casting in previous studies were considered and used for casting of motorcycle/tricycle parts (centre stand and brake pedal) using AFS guidelines. The scraps’ chemical compositions were analysed. Thereafter, some mechanical properties with the microstructure of the aluminium casts and that of commercially obtained imported types were examined using appropriate ASTM standards. Cast aluminium alloy produced using scrap had no casting defects and had some mechanical properties comparable to those available on the markets (imported). Thus, effective usage of naturally available moulding sands in Nigeria for foundry applications would help to proffer sustainable solutionsto the nation’s economic problem as a result of the adverse effects oftheCovid-19 pandemicItem MODELLING OF CORROSION INHIBITION OF CUCUMBER PLANT EXTRACTS ON AISI 1007 STEEL IN SEAWATER(Faculty of Engineering, “Dunarea De Jos” University of Galati Romania, 2022-03-15) SHUAIB-BABATA, Yusuf Lanre; IBRAHIM, H. K.; BUSARI, Y. O.; MAHAMOOD, R. M.; ABDULRAMAN, S. O.; AMBALI, I. O.; ABDULQADIR, L. B.; AREMU, N. I.; EJIKO, S. O.Adsorption Models with the application of corrosion experimental data is a very popular mechanism to predict various inhibitive systems. The effective modelling and interpretation of adsorption isotherms reliably determine the level of accuracy ofadsorption processes. This study aims to apply the adsorption models and inhibitive mechanism of Cucumber Peel Extract (CPE) and Cucumber Seed Oil (CSO) tocorrosion of AISI 1007 steel grade in the saline medium using both the electrochemical (Tafel Polarisation) and non-electrochemical (Weight Loss) techniques. The chemical composition of AISI 1007 andthephytochemical properties of studied extracts weredetermined. Consideration was given to Langmuir and Dubinin-Radushkevich Isotherm models (D-RIM) to study the inhibitive properties of CPE and CSO on AISI 1007 steel in an aggressive medium. The result of inhibition efficiency from weight loss measurement showed maximum inhibitions of 94.44 % and 95.44 % with 1.0 g/L concentration of CPE and CSO respectively in seawater medium. The result ofthestudied extract at 25 °C in seawater showed thatthecorrosion current density of AISI 1007 steel decreased and increased in the inhibition efficiency with 87.33% and 94.67% for CPE and CSO respectively. The negative value of ΔGads was greater than 20 kJ/mol and was obtained as a resultof electrostatic interaction between the adsorbed inhibitor molecules and the ions/atoms on the metal surface. The studied inhibitors were confirmed to be mixed organic corrosion inhibitors type. The values of E and maximum surface coverage (θmax)for the two measurements are satisfactorily in acceptable agreement as similar to the range of value obtained for inhibition efficiencyItem MODELLING OF CORROSION INHIBITION OF CUCUMBER PLANT EXTRACTS ON AISI 1007 STEEL IN SEAWATER(Faculty of Engineering, “Dunarea De Jos” University of Galati Romania, 2022-03-15) SHUAIB-BABATA, Yusuf Lanre; IBRAHIM, Hassan Kobe; BUSARI, Yusuf Olarenwaju; MAHAMOOD, Rasheedat Modupe; ABDULRAMAN, Sikiru Ottan; AMBALI, Ibrahim Owolabi; ABDULQADIR, Babatunde Lawal; AREMU, Ishaaq Na’allah; AJAO, Kabiru Suleiman; EJIKO, Samuel OmojolaTHE ANNALS OF “DUNAREA DE JOS” UNIVERSITY OF GALATIFASCICLE IX. METALLURGY AND MATERIALS SCIENCENo. 1-2022, ISSN 2668-4748; e-ISSN 2668-4756ArticleDOI: https://doi.org/10.35219/mms.2022.1.03MODELLING OF CORROSION INHIBITION OF CUCUMBER PLANT EXTRACTS ON AISI 1007 STEEL IN SEAWATERYusuf Lanre SHUAIB-BABATA1*, Hassan Kobe IBRAHIM2,Yusuf Olarenwaju BUSARI1, Rasheedat Modupe MAHAMOOD1,Sikiru Ottan ABDULRAMAN3, Ibrahim Owolabi AMBALI1,Babatunde Lawal ABDULQADIR4, Ishaaq Na’allah AREMU1,Kabiru Sulaiman AJAO1, Samuel Omojola EJIKO51Department of Materials & Metallurgical Engineering, University of Ilorin, Nigeria2Department of Mechanical Engineering, University of Ilorin, Ilorin, Nigeria3Department of Mechanical Engineering, Kwara State University, Malete, Nigeria4Department of Mechanical Engineering, Kwara State Polytechnic, Ilorin, Nigeria5Department of Mechanical Engineering, Federal Polytechnic, Ado-Ekiti, Nigeriae-mail: sylbabata@unilorin.edu.ng; sylbabata@gmail.comABSTRACTAdsorption Models with the application of corrosion experimental data is a very popular mechanism to predict various inhibitive systems. The effective modelling and interpretation of adsorption isotherms reliably determine the level of accuracy ofadsorption processes. This study aims to apply the adsorption models and inhibitive mechanism of Cucumber Peel Extract (CPE) and Cucumber Seed Oil (CSO) tocorrosion of AISI 1007 steel grade in the saline medium using both the electrochemical (Tafel Polarisation) and non-electrochemical (Weight Loss) techniques. The chemical composition of AISI 1007 andthephytochemical properties of studied extracts weredetermined. Consideration was given to Langmuir and Dubinin-Radushkevich Isotherm models (D-RIM) to study the inhibitive properties of CPE and CSO on AISI 1007 steel in an aggressive medium. The result of inhibition efficiency from weight loss measurement showed maximum inhibitions of 94.44 % and 95.44 % with 1.0 g/L concentration of CPE and CSO respectively in seawater medium. The result ofthestudied extract at 25 °C in seawater showed thatthecorrosion current density of AISI 1007 steel decreased and increased in the inhibition efficiency with 87.33% and 94.67% for CPE and CSO respectively. The negative value of ΔGads was greater than 20 kJ/mol and was obtained as a resultof electrostatic interaction between the adsorbed inhibitor molecules and the ions/atoms on the metal surface. The studied inhibitors were confirmed to be mixed organic corrosion inhibitors type. The values of E and maximum surface coverage (θmax)for the two measurements are satisfactorily in acceptable agreement as similar to the range of value obtained for inhibition efficiency.Item The Suitability of Using Environmental Waste (Polystyrene Foam, Sawdust and Eggshells) for Developing a Hybrid Composite for Ceiling Boards(FACULTY OF ENGINEERING, University of Nigeria, Nsukka, Nigeria (UNN), 2022-01) SHUAIB-BABATA, Yusuf Lanre; Busari, Y. O.; ABDULRAMAN, S. O.; ABDULQADIR, L. B.; AMBALI, I. O.; AJAO, K. S.; AREMU, N. I.; AROWOLO, I,OThis study considers the suitability of using environmental wastes (polystyrene foam, sawdust and eggshell) for the development of composite materials for ceiling boards. The materials were collected from dumping sites and processed accordingly. The elemental compositions of the processed sawdust and eggshell were examined using Atomic Absorption Spectrometer (ASS) andplasma-optical emission spectrometer (Optimal 3100XL Perkin Elmer) respectively. Properties of the composite samples were determined using appropriate ASTM standards (ASTM D570, C109-95, D3479, E1530 and D7336/D7336M). The results show that the composite with a mix ratio of 5% Polystyrene, 10% sawdust and 40% eggshell exhibited the most suitable properties for ceiling board production or indoor uses in building: water absorption (0.52 and 6.17% for 2 and 24hours respectively), tensile strength (2.362 N/mm2), elongation at break (0.677 mm), compressive strength (0.1575 N/mm2), energy to break (0.016 N.m) and thermal conductivity of 0.0221 W/M.K. Thus, the production of suitable ceiling board using some bio-wastes can be domesticated in Nigeria