Articles

Browse our published research articles

147 articles
121
Research Article

Synthesis and application of vinylsulphone disperse reactive dyes derived from pyridone derivatives on polyester fabric

Fasansi I.*, Kasali A. B.

Vinylsulphone disperse reactive dyes were synthesized by diazotizing 2-methoxy-5-methyl-4- (sulfatoethylsulfonyl) aniline and coupling with substituted pyridone derivatives. The synthesized dyes were applied successfully on polyester without dispersing agent and the dyeing showed good leveling and build up with desired colour yield. The dyeing was dependent on the pH and the optimum pH was foun...

Jun, 2016 pp. 95-99
122
Research Article

Some clinical applications of nanotechnology

GIWA F J*, ILIYA E. B

Nanomedicine can be succinctly defined as the application of nanotechnologies in a healthcare setting. Nanomedicine ascends from the integration of different sciences; physics, chemistry, biology, materials science, engineering, using the nanometer scale. This leads to scientists with different backgrounds, and diversified technical and intellectual skills, trying to address medical problems us...

Jun, 2015 pp. 95-102
123
Research Article

Influence of Alkaline Treatment Performance on the Mechanical, Thermal and Wettability Properties of Epoxy/Kenaf Fibre Composite

Shuaibu M.A*, Busuguma A.U, Mohammed A.B., Amina H.B, Shamsuddeen U.A., Ahmad A.

The development of eco-friendly composites with enhanced mechanical and thermal performance remains a challenge, particularly when using natural fibres. The studies on the mechanical and thermal properties of neat epoxy (EPX), EPX/KF and EPX/KF/NaOH at different kenaf fibre loading and at different NaOH treatment. This study investigates the effects of kenaf fibre (KF) loading and sodium hydrox...

Jun, 2025 pp. 97-111
124
Research Article

Synthesis, Characterization, Magnetic and Photocatalytic properties of Bi, Co and Mn Co-doped Neodymium Ferrite (Nd0.5Bi0.2(Co0.2Mn0.1)FeO(3-δ)) Solid Solution

Ibrahim A.*, Bice S. Martincigh, Sreekantha B. Jonnalagadda

Bismuth and cobalt co-doped perovskite-type nanomaterials with the composition Nd0.5Bi0.2(Co0.3Mn0.1)FeO3-δ were syn thesized by using the citric acid sol-gel route and annealed at annealing temperatures (TA) of 400, 750 and 900°C to pro duce powders labelled NdCo400, NdCo750 and NdCo900 respectively.  The powders obtained were characterized using  Powder X-ray diffraction (PXRD) analysis, transmi...

Dec, 2021 pp. 99-106
125
Research Article

Profiling Biodiesel Produced from African Mahogany Seed at 1% NaOH Catalyst and Multiple Methanol Molar Ratios

Ishaya Zamani Donald*, PAM G Y, Kulla D. M., Abdulraheem Giwa

The need for new renewable energy resources and its utilization as sustainable solution for transport fuel, respiratory health and environmental problems drives this study. This study involved chemical profiling of African Mahogany (AM) methyl esters fatty acid (ME-FA) produced at multiple of two times, three times and four times seed oil to methanol molar ratios (MR). The key factors kept cons...

Dec, 2020 pp. 99-108
126
Research Article

Mineralogical and chemical characterization of Zarara hill copper deposit, Kano State, Northwestern Nigeria

Magaji S. S.*, Martin R. F., Ike E. C.

A new copper deposit associated with the marginal granite porphyry of Banke Younger Granite Complex was discovered at Zarara hill, Kano State Nigeria. Preliminary study was undertaken with the main objectives of mineralogical and chemical characterization of the deposit. Twelve samples were obtained polished thin sections were prepared and studied using backscattered images and electron micropr...

Jun, 2016 pp. 100-105
127
Research Article

Treatment of waste water by activated carbon developed from Borassus aethiopum

Jacob A. G*, OKUNOLA O. J, UDUMA A. U

The use and effectiveness of granular and powdered activated carbon made from Borassus aethiopum shells in adsorption studies were investigated. The source material was carbonized at 5000C and for a residence time of three hour in a muffle furnace, while 0.5M each of H3PO4 and ZnCl2 were used for chemical activation at 7500C and for 60m residence time. The adsorption of lead from aqueous solut...

Jun, 2015 pp. 103-107
128
Research Article

Effect of annealing conditions on the magnetic, optical and photocatalytic properties of the perovskite-type material La1-x(Bix)FeO3-δ

Ibrahim A.*, Bice S. Martincigh, Sreekantha B. Jonnalagadda

Novel perovskite-type nanomaterials with the composition La1-x(Bix)FeO3-δ (where x = 0.5 and 0.2) were synthesized by using a modified citric acid sol-gel route and annealed at 900 °C in (1) in air (LB0.5FO-air and LB0.2FO-air), and (2) in Argon atmosphere (LB0.5FO-Ar and LB0.2FO-Ar). Scanning electron microscopy and powder X-ray diffraction analysis of the powders showed that they contain cry...

Jun, 2016 pp. 106-112
129
Research Article

Determination of the Suitability of Locally Available Aluminum Scrap for Production of Motorcycle Brake Shoe

Adeyemi S. S.*, Sogbesan A. O., Adetunji A. R., Isadare Dayo A, Olawale J. Olawale, Adekoya O., Adeyemo O.

High demand for motorcycle and its spare parts in the country necessitate production of some of its parts locally to  conserve foreign exchange and create jobs. Brake shoes are one of the frequently replaceable parts in the motorcycle,  and hence, need for domestication to reduce pressure on importation. In this paper, aluminum scraps were obtained  from two local aluminum companies and were chara...

Dec, 2021 pp. 107-115
130
Research Article

Characterization of hematite nanoparticles synthesized via sol gel method in tween 20 surfactant solution

IBRAHIM ABDULKADIR*, Bice S. Martincigh

Samples of hematite (α-Fe2O3) nanoparticles (HTW) have been synthesized through a modified sol-gel method in Tween 20 (a polysorbate surfactant), separate portions of the powders were annealed at three different temperatures (400, 500 and 600 °C). The samples were characterized by X-ray diffraction (XRD), high-resolution electron microscopy (HRTEM), Mössbauer spectroscopy and by means of a vibr...

Jun, 2015 pp. 108-113