Articles

Browse our published research articles

140 articles
51
Research Article

Formulation and Development of Silicon Nanocomposite Based Conductive Inks

Okpanachi Benjamin*, Ojata Abode Harry, Jafaru Braimah

This study presents the formulation and development of silicon nano-composite based conductive ink for  possible screen printing of selected electronic devices. An XRD technique was employed to characterize  and the result analysis showed that the particles were nano- sized Silicon nano-composite based conductive  inks were formulated and developed from milled silicon nano-particle which served as...

Jul, 2021 pp. 29-35
52
Research Article

Effect of Counterface Material on Tribological Behavior of AISI 304L Stainless Steel Under Marginally Lubricated Contact

Olofinjana Bolutife*, Ajayi Oyelayo, Lorenzo-Martin Cinta, Ajayi Ezekiel Oladele Bolarinwa

The properties of surfaces in contact are known to have significant influence on the tribological behavior of any  tribosystem in different contact situations. In the present work, the effect of using different ball counterface material on  the tribological behavior of AISI 340L stainless steel under marginally lubricated contact was studied. The frictional  behavior was evaluated using a ball-on-...

Jun, 2020 pp. 30-36
53
Research Article

Health Risks Assessment of Heavy Metals in Noodles Sold in Ozoro, Delta State, Nigeria

Emumejaye K.*, Daniel-Umeri R. A., Edema O. G.

The concentrations of some selected heavy metals were assessed by atomic absorption spectrophotometry in noodles sold in the study area. Total of eight different brands of noodles were investigated. The results of heavy metals in samples in mg/kg were in the order: Fe (13.15 – 144.75); Pb (0.00 – 0.55); Cd (0.00 – 0.01); As (0.00 – 0.14); Ni (0.01 – 0.09); Cu (0.02 – 0.33); Zn (1.45 – 8.05) an...

Dec, 2016 pp. 31-34
54
Research Article

Synthesis and Characterization of Ni/Mo Nanocatalysts on Alumina and Zeolite Supports

Olaremu Abimbola George*, Odebunmi Ezekiel Oluyemi, Anderson A. James.

A series of nickel/molybdenum bimetallic nanocatalysts were prepared by wet impregnation method on USY  zeolite and alumina as support. The catalysts were characterized by nitrogen-sorption (for Brauneur-Emmet-Teller,  BET surface area determination), X-ray diffractometry (XRD), Scanning Electron Microscopy (SEM), Scanning  Electron Microscopy-Electron Dispersive X-ray Spectroscopy (SEM-EDX) , Tra...

Dec, 2018 pp. 32-43
55
Research Article

Fabrication of palm kernel shell epoxy composites and study of their mechanical properties

ACHUKWU E. O*, BARNABAS A. M, MAMMAN A, UZOCHUKWU M. I

The solid waste from palm oil mill industry in Nigeria has been on the increase annually. This study thus investigates the utilization of Palm kernel shells (PKS) bio-agricultural wastes as a filler material for epoxy composite fabrication in which the filler was treated in an alkali solution. The composites were fabricated by employing filler particle size of 150μm and loadings of 5%, 10%, 20%...

Jun, 2015 pp. 32-38
56
Research Article

Evaluating Concrete Strength Properties with Waste Glass as a Partial Replacement for Various Coarse Aggregate Gradings

Ogunsina Emmanuel Seun*, Hamza Ahmed Adavize, Saka Ahmed Olalekan, Adebayo Lawrence Omoniyimi, Oluwaseun A. Adetayo

The reuse of waste glass in concrete production is an attractive option for achieving waste reduction and preserving natural resources from further depletion, thereby protecting the environment and promoting sustainability. This present study examined the variation in the strength properties of concrete using waste glass aggregate (WGA) as a partial replacement for diffe...

Jun, 2024 pp. 34-39
57
Research Article

Investigation into the Bating Potential of Musa Accuminata (Banana) Peel in the Production of Leather

Bulus Habila*, Tashi Umar Tijjani, Saidu Simon Moses, Uwanta Emaime Jimmy, Gaiya Jonathan Danladi, Shekarri Ninnas Tachye, Muazu Balarabe Babangida, Ahmed Salim, Igbehinadun Olajide J., Adamu Audu

Increasing environmental pressures are forcing tanneries to reduce the level of nitrogenous compounds in generated effluents, due to strict regulations on effluent quality from various unit processes which bating plays a vital role. Bating imparts smoothness and stretchy effect to the resultant leather with the addition of proteolytic enzymes which are expensive, hence the need for alter...

Dec, 2021 pp. 34-38
58
Research Article

Kinetics Studies of the Removal of Manganese, Cadmium and Lead from Aqueous Solution Using Cocoa Shell

Ojiodu C. C.*, Eruola A. O., Olowu R. A.

The kinetics of the removal of manganese cadmium and lead in aqueous solution using cocoa shell as an adsorbent was investigated. The effect of contact time, kinetic of sorption mechanism and the adsorbate concentrations on sorption of Mn2+, Cd2+ and Pb2+ ions were examined. The kinetic of the sorption mechanism of Mn2+, Cd2+ and Pb2+ was evaluated using pseudo-first order (Lagergren) rate and...

Dec, 2016 pp. 35-43
59
Research Article

Thermal and mechanical properties of high-density polyethylene (HDPE)/leather composite

Musa E. T.*, Hamza A., Ahmed A. S., Ishiuku U. S., Kolawole E. G.

The possibility of using solid tannery waste in HDPE was studied by examination of the mechanical properties, morphology and thermal properties of the composites produced. Composite was manufactured by compression moulding technique for varying fibre contents from 10% to 60%. Mechanical and physical tests were conducted on composite specimens in accordance to ASTM D638. A partial replacement o...

Jun, 2016 pp. 35-41
60
Research Article

Oil-water flows characteristics in pipes of different diameter

EDOMWONYI-OTU L C*, HERNANDEZ-BARRAL A, ANGELI P

The flow patterns during oil-water flows were investigated in two acrylic pipes that had different diameters, 38 mm ID and 14 mm ID respectively. Water (ρ = 1000 kgm-3, μ = 0.001 kgm-1s-1) and Exxsol D140 oil (ρ = 830 kgm-3, μ = 0.0055 kgm-1s-1) were used as test fluids, while the patterns were recorded with a high speed camera. Dispersed and rivulet flows were seen in the small pipe but not in...

Dec, 2014 pp. 35-40