Explore Project Topics on: Synthesis and characterization of silver nanowires towards fabrication of improved dye sensitized solar cell

Research on the single pot green synthesis of silver nanoparticles (AgNPs) was done using aqueous medicinal plant extract of Tithonia diversifolia and Acalypha wilkesiana. Characterization was carried out by spectroscopic techniques. Experimental optimization studies and the antimicrobial activity of the nanoparticles were investigated. Bottom-up... Continue Reading

CONTENTS CHAPTER Acknowledgement Dedication Abstract INTRODUCTION The b!eed For Harnessing Solar Enera Fundaments 1 Concep t;s of Solar Radia tion Origin of Solar Radiation Ex tra-Terres trial Solar Radiation The So lar Cons tan t Spectral Distribution of Extra -Terres trial Solar Radia tion Terrestrial &am Insola tion Diffuse Solar Radiation... Continue Reading

ABSTRACT Cell phones need electric sources to charge their batteries in order to work, but there are people in developing and third world countries that find it hard to access electric sources.In an attempt to provide an alternative means of charging to those unfortunate areas in third world and developing countries, a solar powered cell phone... Continue Reading

ABSTRACT Cell phones need electric sources to charge their batteries in order to work, but there are people in developing and third world countries that find it hard to access electric sources.In an attempt to provide an alternative means of charging to those unfortunate areas in third world and developing countries, a solar powered cell phone... Continue Reading

ABSTRACT Cell phones need electric sources to charge their batteries in order to work, but there are people in developing and third world countries that find it hard to access electric sources.In an attempt to provide an alternative means of charging to those unfortunate areas in third world and developing countries, a solar powered cellphone... Continue Reading

ABSTRACT According to a few recent studies, calcium titanate is a material that is similar to hydroxyapatite in biological properties. However, calcium titanate is not currently being used in the biomedical application as to hydroxyapatite. The objective is to prepare nano calcium titanate powder from the solution of calcium oxide, ethanol, and... Continue Reading

Metal complexes are scientifically known to be active and effective as antibacterial, antivirus and some antifungal etc. This project work is targeted at preparing complex from transition metals say; cobalt, cupper, zinc and nickel and organic ligands synthesised from pyridyl based schiff bases, one from 2-aminopyridine and benzaldehyde and second... Continue Reading

Metal complexes are scientifically known to be active and effective as antibacterial, antivirus and some antifungal etc. This project work is targeted at preparing complex from transition metals say; cobalt, cupper, zinc and nickel and organic ligands synthesised from pyridyl based schiff bases, one from 2-aminopyridine and benzaldehyde and second... Continue Reading

ABSTRACT Zinc Oxide (ZnO) nanowires with hexagonal structure were successfully synthesized by chemical bath deposition technique. The obtained nanowires were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), energy dispersive X-ray analysis (EDX) and spectrophotometer. The SEM micrographs revealed the morphology of ZnO... Continue Reading

ABSTRACT According to a few recent studies, calcium titanate is a material that is similar to hydroxyapatite in biological properties. However, calcium titanate is not currently being used in the biomedical application as to hydroxyapatite. The objective is to prepare nano calcium titanate powder from the solution of calcium oxide, ethanol, and... Continue Reading

ABSTRACT Core-shell oxide thin films of TiO2/MnO, TiO2/CoO, TiO2/NiO and TiO2/CuO have been successfully synthesized and deposited on glass substrates, using the chemical bath deposition [CDB] technique. To ensure uniform coating, surface pre-treatment was carried out by cleaning slides with detergent, deionised water, ammonia acid and rinsed with... Continue Reading

ABSTRACT The present paper describes the synthesis of Acid Orange(7)dye which can be used as dyes for cellulose acetate biopolymer. They were obtained by the diazotization of a monoazo component of the mono-azobenzene type, followed by coupling. The monoazo components were obtained by the diazotization of sulphanilic acid and coupling with... Continue Reading

ABSTRACT The removal of Pb(II) ions from aqueous model solution using zeolite has been investigated under different operational parameters like heavy metal ion concentration, adsorbent amount and particle size. The zeolite used was synthesized and characterized using SEM and XRD analysis. The equilibrium adsorption capacity of zeolite used for... Continue Reading

ABSTRACT The present paper describes the synthesis of Acid Orange(7)dye which can be used as dyes for cellulose acetate biopolymer. They were obtained by the diazotization of a monoazo component of the mono-azobenzene type, followed by coupling. The monoazo components were obtained by the diazotization of sulphanilic acid and coupling with... Continue Reading

ABSTRACT Electrochemical capacitors (ECs) or Super capacitors (SCs) are energy saving devices which have excellent properties that include high power density, long cycle life, low temperature sensitivity and low maintenance cost. However, these devices have lower energy densities than conventional batteries. To improve on its energy density, SnO2... Continue Reading

Mechanochemical synthesis of [Cu(OOCCH3)2(THB)2] and theMechanochemical synthesis of [Cu(OOCCH3)2(THB)2] were carried out, and a brown solid complexes obtained in both experiment was washed in ethanol respectively. The physical and instrumental characterisation of the complexes carried out revealed that the complexes obtained are the same... Continue Reading

Mechanochemical synthesis of  [Cu(OOCCH3)2(THB)2] and the Mechanochemical synthesis of  [Cu(OOCCH3)2(THB)2] were carried out, and a  brown solid complexes obtained in both experiment was washed in ethanol respectively. The  physical and instrumental characterisation of the complexes carried out revealed that the complexes obtained are the same... Continue Reading

ABSTRACT The strategy of utilizing mechanochemical synthesis to obtain metal-organic frameworks with high surface area and nanodisperse particles has been espoused. Transition metal ions have been shown to form complexes with organic moieties such as benzyl-N,N-dimethyldithiocarbamate. It has been established that iron in its oxidised state (Fe3+)... Continue Reading

ABSTRACT The strategy of utilizing mechanochemical synthesis to obtain metal-organic frameworks with high surface area and nanodisperse particles has been espoused. Transition metal ions have been shown to form complexes with organic moieties such as benzyl-N,N-dimethyldithiocarbamate. It has been established that iron in its oxidised state (Fe 3+... Continue Reading

ABSTRACT The synthesis, characterization and preliminary antimicrobial studies of some novel Schiff base ligands;  N,N/ - Bis(2-hydroxybenzylidene)-1,4-phenylenediimine(M) and N,N/ - Bis(4-dimethylaminobenzylidene)-1,4-phenylenediimine (N)  were undertaken. It was prepared by the condensation reaction of 1,4-phenylenediamine with... Continue Reading

ABSTRACT 3,5-Bis[(2-hydroxy-benzylidene)-amino]-benzoic acid (H2B) and its cobalt(II) and nickel(II) complexes were synthesized and characterized via: electronic, IR, 1 H NMR and 13C NMR. Job’s continuous variation method was used to determine the mole ratio for both metal complexes. Solvent extraction studies were carried out on H2B in 5% DMF... Continue Reading

ABSTRACT Generally the cutting and plate are made in plastics. The plastics are harmful and it has many disadvantages to us. By naturally we get leaves, Leaves by using this we can make cups. It is very cheap and it does not have any chemical effects. The Leaf cup is made by a solar tea leaf cutting machine. The machine is operated by the solar... Continue Reading

SYNTHESIS AND 1 HNMR CHARACTERIZATION OF Co(II) AND Fe(II) COMPLEXES OF MIXED SCHIFF BASE LIGAND DERIVED FROM SALICYLALDEHYDE AND 2-HYDROXY-1-NAPHTHALDEHYDE WITH 2-AMINOPHENOL A RESEARCH PROJECT BY NKEMJIKA, EMMANUEL EKE 12/SC/CH/256 SUBMITTED TO DEPARTMENT OF CHEMISTRY FACULTY OF SCIENCE UNIVERSITY OF UYO, UYO AKWA IBOM STATE IN PARTIAL... Continue Reading

SYNTHESIS AND 1 HNMR CHARACTERIZATION OF Co(II) AND Fe(II) COMPLEXES OF MIXED SCHIFF BASE LIGAND DERIVED FROM SALICYLALDEHYDE AND 2-HYDROXY-1-NAPHTHALDEHYDE WITH 2-AMINOPHENOL A RESEARCH PROJECT BY NKEMJIKA, EMMANUEL EKE 12/SC/CH/256 SUBMITTED TO DEPARTMENT OF CHEMISTRY FACULTY OF SCIENCE UNIVERSITY OF UYO, UYO AKWA IBOM STATE IN PARTIAL... Continue Reading

    A RESEARCH PROJECT BY   NKEMJIKA, EMMANUEL EKE 12/SC/CH/256   SUBMITTED TO   DEPARTMENT OF CHEMISTRY FACULTY OF SCIENCE UNIVERSITY OF UYO, UYO AKWA IBOM STATE    ... Continue Reading

Abstract As the world keeps evolving, the demand for electricity increases. The growing energy consumption leads to higher cost that many people, especially in Ghanaian rural areas, cannot afford. Thus, considering this, this paper focuses on designing a Stirling engine to pump water in homes. In order to contribute to the use of renewable energy... Continue Reading

Abstract More than 2.2 million Ghanaian families in rural areas depend on firewood and charcoal as fuel for cooking [1]. This high dependency is taking a toll on forest resources due to rampant deforestation. “Ghana's forest cover, which stood at 8.2 million hectares in 1900, has now been reduced to about 1.2 million hectares, with an estimated... Continue Reading

Abstract This report presents the optimisation of a ceramic-matrix composite (anthill sand and cement), reinforced with treated coir fibres for applications in the construction of a low costsolar powered cooking stove to solve the current trends in the depletion of forest spaces in Ghana due to excessive destruction as a result of using firewood... Continue Reading

Table of Content CHAPTER ONE INTRODUCTION 1.1       Background to the study 1.2       Solar Energy and Deep Cycle Battery 1.2.1    Solar Energy    1.3       Definition of Sprayer 1.4       Statement of the Problem 1.5       Aims and Objectives of the Project             1.6       Justification of... Continue Reading

ABSTRACT Zeolite crystals were synthesized by mixing sodium silicate and sodium aluminate to obtain aluminosilicate gel which was further treated hydrothermally to obtain the final product. The zeolite crystals were characterized by x-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD result identified the synthesized crystals... Continue Reading