Volume-18 ~ Issue-3 ~ March 2025

Abstract: The application of cassava peel, orange peel, and their mixtures in the remediation of oil-contaminated soils from Rumuekpe in Emuoha Rivers State were assessed. Bioreactors that contain the oil-contaminated soil, the peels and their mixtures were set-up and monitored for 42 days. Standard methods recommended in APHA and HACH with GC-MS and GC-FID were used to determine the total petroleum hydrocarbon (TPH) and polycyclic aromatic hydrocarbons (PAH). The soils were collected from the top soil (0-30cm) and the results, showed that after 42 days of amendments....

Keywords: Remediation Potential, Cassava, Orange Peels, Soils, Rumuekpe, Rivers State

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Abstract: Background: Silica nanoparticles (SiNPs) have gained significant attention due to their wide applications in catalysis, drug delivery, sensing, and nanotechnology. The sol-gel method is a widely used approach for synthesizing SiNPs due to its simplicity, cost-effectiveness, and ability to control particle size and morphology. Tetraethyl orthosilicate (TEOS) is a key precursor in the sol-gel process, and its concentration plays a crucial role in determining the physicochemical....

Keywords: Silica nanoparticles; sol-gel method; TEOS Precursor; Advanced Materials, Nanoparticles Synthesis

[1] Allouche J, Le Beulze A, Dupin JC, Ledeuil JB, Blanc S, Gonbeau D. Hybrid Spiropyran-Silica Nanoparticles With A Core-Shell Structure: Sol-Gel Synthesis And Photochromic Properties. J Mater Chem. 2010;20(42):9370–8.
[2] Arunmetha S, Karthik A, Srither SR, Vinoth M, Suriyaprabha R, Manivasakan P, Et Al. Size-Dependent Physicochemical Properties Of Mesoporous Nanosilica Produced From Natural Quartz Sand Using Three Different Methods. RSC Adv. 2015;5(59):47390–7.
[3] Babu SV, Reddy KH. Direct Spectrophotometric Determination Of Mercury (II) Using 2-Acetylpyridine Thiosemicarbazone In Environmental Samples. Int J Adv Chem Sci.2012
[4] Bae SW, Tan W, Hong JI. Fluorescent Dye-Doped Silica Nanoparticles: New Tools For Bioapplications. Chem Commun. 2012;48(17):2270–82.
[5] Brassard JD, Sarkar DK, Perron J. Synthesis Of Monodisperse Fluorinated Silica Nanoparticles And Their Superhydrophobic Thin Films. ACS Appl Mater Interfaces. 2011;3(9):3583–8..

Abstract: In this study, six novel cholesterol-based thiourea derivatives were successfully synthesized via the reaction of cholesterol chloroformate with various thioureas. The synthesis aimed to explore the potential functionalization of cholesterol with thiourea moieties which are known for their diverse biological activities. The structures of the synthesized derivatives were confirmed using 1H and 13C NMR (Nuclear Magnetic Resonance) and mass spectrometry. Additionally, FTIR (Fourier transform infrared spectroscopy) further validated the presence of key functional groups including, the thiourea moiety and the cholesterol backbone. Although no biological activity assays were conducted the successful synthesis and characterization of these thiourea derivatives provide a solid foundation for future studies exploring their biological and material applications.

Keywords: Thiourea, cholesterol chloroformate, cholesterol derivatives, thiocarbamate, DMAP

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Abstract: Justification: The unplanned growth of cities has caused several impacts on water resources due to population growth, the presence of cemeteries, fairs and markets, the destruction of primary forests for food production, landfills, the construction of canals and barriers in water resources altering the natural flow, industrialisation, clandestine mining of sand, rocks and clay for construction, the introduction of exotic plant and animal species, the deforestation of ciliary forests for the construction of highways, streets, housing complexes and leisure areas, placing water resources at biophysiochemical risk, among others, and consequently....

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Abstract: To examine the structural and optical properties of nanostructured ferrites, namely those with the formula Co1...

Keywords: Co1-yMnyNdxFe2-xO4 nano ferrites, X-ray diffraction, FTIR, and Optical properties..

[1] R.M. Kershi, A.M. Alshehri, R.M. Attiyah, Enhancement of Ni–Zn ferrite nanoparticles parameters via cerium element for optoelectronic and energy applications, Discover Nano 18 (2023). https://doi.org/10.1186/s11671-023-03921-6.
[2] M.A. Abdo, R. Al-Wafi, M.S. AlHammad, Highly efficient visible light driven photocatalytic activity of rare earth cerium doped zinc-manganese ferrite: Rhodamine B degradation and stability assessment, Ceram Int 49 (2023). https://doi.org/10.1016/j.ceramint.2023.06.213.
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[5] E. Ateia, A.A.H. El-Bassuony, Fascinating improvement in physical properties of Cd/Co nanoferrites using different rare earth ions, Journal of Materials Science: Materials in Electronics 28 (2017). https://doi.org/10.1007/s10854-017-6944-0.

Abstract: A novel BaTiO3/BiVO4/ZnFe2O4 (BBZ) photocatalyst was developed by depositing various weight percentages of ZnFe2O4 (5, 10,15 and 20) onto a BaTiO3/BiVO4 binary system via simple calcination method. The as-synthesized materials were analysed using various techniques, including X0ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), UV-visible diffuse reflectance spectroscopy (UV–vis DRS), scanning electron microscopy with energy dispersive X-ray........

Keywords: BaTiO3/BiVO4/ZnFe2O4, Dual S-scheme, Superoxide, Hydroxy radicals..

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Abstract: Sulphate modified bimetallic Cu-Co MOF was explored for the valorization of glycerol to solketal at ambient conditions. Co MOF on modification by incorporating Cu to synthesize bimetallic Cu-Co MOF proved to be advantageous in exhibiting enhanced activity towards the formation of solketal due to the increase in Lewis acid sites on the surface of the catalyst. Sulphated Cu-Co MOF was synthesized by solvo-thermal method followed by impregnation and the thus......

Key Words: Cu-Co MOF; glycerol; acetalization; sulphation; Lewis acid sites; Py-IR

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