Volume-14 ~ Issue-1 ~ January 2021

Abstract: Background: Fruits from Cucurbitaceae plant family are naturally consumed or after processed in form of juices, alcoholic beverages and jams. Seed oils have been well applicable in food as edible oil and as source of raw materials for soap and detergent production and other industrial chemical products. Consequently, a lot of attention has been devoted to this renewable bioresources from plant origin as alternative for the replacement of the existing environmentally unsafe chemical feedstock derived from fossil origin. Materials and Methods: The fruit seeds (Cucumeropsis manni, Lagenaria siceraria, Cucumis melo and Citrullus colocynthi) used in this work were obtained at Sango Market, Saki, Oyo State, Nigeria. The seeds were deshelled, sundried for 2 weeks and then pulverized.....

Keyword: Oil extraction, Saponification value, Acid value, Ester value, POV.

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Abstract:The heavy metal assessment on the quality of three samples of ground water from different location in Nekede, was carried out using AAS Unicom Solar 966. The results from the analysis shows that Umuerim Nekede (Um1) had Zn (0.132mg/l), Fe (1.181mg/l), Pb (0.055mg/l) and Cu (0.041mg/l), Umuokomoche Nekede (Um2) had Zn (0.010mg/l), Fe (0.157mg/l), Pb (0.045mg/l) and Cu (0.505mg/l). While, Umuokoto Nekede (Um3) had Zn (0.052mg/l), Fe (0.51mg/l), Pb (0.253mg/l) and Cu (0.546mg/l).
The PH, turbidity, conductivity and hardness were within the W.H.O permissible standard of 3.00, 0.300, 0.01 and 2.00 for Zn, Fe, Pb and Cu respectively for drinking water, except the sample of Um3 for the month of July with higher value of conductivity 1320 μscm-1 and hardness of 100mg/l. These could be attributed to the presence of dumpsite in the area which could leach during heavy rain in the month of July.

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Abstract: Background: Catalysts are successful candidates to be described by fractal theory, as they are usually materials with higher BET area, very irregular, with a shape difficult to describe as a convolution of planar surfaces. Enhancing catalytic activity for DRM of catalysts implies obtaining catalysts with higher basicity. The relation between the catalysts basicity and the fractal dimension will be investigated. Materials and Methods: Highly dispersed Rh nanoparticles on various supports like Al2O3, TiO2 and WO3, metal loading 1% was obtained by impregnation of the support powder with water dispersed rhodium nanoparticles synthesized by modified alkaline......

Key Word: Nanoparticles; Fractal; Basicity; CO2-TPD; TEM; Adsorption Isotherms

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Abstract:Background: Research on nanoparticles is of great interest as it provides a bridge between bulk materials and atomic structures. However, the need of the hour is method of syntheses which are eco – friendly and sustainable. The "Green" method has proven to be reliable and cost – effective for synthesizing various types of nanoparticles. Hence it is regarded as an important tool in order to reduce the negative drawbacks that as re associated with the traditional methods of synthesis.
Materials and Methods: For synthesizing silver nanoparticles, leaf extract of mangrove Avicennia marina was used as a precursor along with 1mM AgNO3 solution. The nanoparticles were further characterized using techniques UV – Visible, FTIR, TEM and Nanoparticle Tracking Analysis. The absorption spectrum was obtained using UV – Visible spectrometer.......

Key Words: Avicennia marina, silver nanoparticles, UV – Visible, FTIR, NTA, TEM.

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