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Browsing Department of Physical Sciences by Issue Date

Browsing Department of Physical Sciences by Issue Date

Now showing items 1-16 of 16

Study of The Effect of Flux on Structural and Optical Properties of Baal2o4:Eu2+ Phosphors

Gichovi, Yvonne Ng’endo (University of Embu, 2015)

The concept of luminescence is widely used in our world today. There are different forms of luminescence which include chemiluminiscence, phosphorescence, florescence, and electroluminescence. When electrons in ground state ...
Kinetics and Equilibrium Studies For Adsorption of Lead (Ii) Ions on Treated Maize Stalk Charcoal

Rutto, Evans Toroitich (University of Embu, 2019)

The deliberate release of heavy metal-containing effluents into water bodies and the ecosystem has been one of the most ambiguous and widespread environmental hazard to human health. Rapid industrialization in most parts ...
Investigation of The Effect Of Initial Metal Ion Concentration on Chromium (Iii) Adsorption onto Thebanana Leaf Petiole as the Biosorbent

Ouma, John (University of Embu, 2019)

There is a tremendous increasing demand for portable water due to the rising human population and urbanization and industrialization and climate change. There is no doubt that water in this county and largely the country ...
Effect of Varying Concentration of Strontium on Structural and Luminescent Properties of Sral2o3:Ce3+ Material

Muriithi, James Njoka (University of Embu, 2019)

In modern world, luminescent materials with tunable emission properties have found application in most of the areas that usually deals with material sciences. White light emitting diodes have matched the efficiency of ...
Structural and Luminescent Properties Of Sral2o4:Ce3+ Nanomaterials Kamande

Wamuya, Anthony (University of Embu, 2019)

Blue and violent emitting cerium doped strontium aluminate nanophosphor was synthesised through solution combustion method. The colour of undoped SrAl2O4 powders was white while that of SrAl2O4: Ce3+ powders were pale ...
Synthesis And Investigation Of Properties Of Cerium Doped Calcium Oxide (Cao: Ce3+ )

Chagallah, Felix (University of Embu, 2019)

Over the decade’s luminescent materials have found their use mostly in production of Light Emitting Diodes (LEDs), where different alkaline earth has been used in production of different colors. Phosphors have been used ...
Equilibrium Studies For Adsorption of Cadmium Ions Using Treated Maize Stalk Charcoal

Mutai, Duncan Cheruiyot (University of Embu, 2019)

Discharge of toxic heavy metals into the environment as industrial waste causes extensive soil and water pollution. The associated risk of pollution of heavy metals has increased over the recent years to a great extent. ...
Investigating The Effect Of Adsorbent Dosage On Chromium (Iii) Ions Adsorption Onto Banana Petiole Biomass.

Ngowa, Josephine Rehema (University of Embu, 2019)

Water pollution has been the major cause of shortage of clean water in Kenya. This promptscitizens to use wastewater for domestic purposes. For example river Kapingazi in Embu wherewaste from the region is dumped is used ...
Kinetics and Equilibrium Studies Using Lead Ions onto Treated Maize Stalk Charcoal

Kobia, Vincent (University of Embu, 2019)

According to recent reports in Kenya, there has been suspected cases of metal ions in the foodstuffs which could be from water resources. The country has been towards actualizing vision 2030 which is contributing to mass ...
Equilibrium Studies For Adsorption of Cadmium Ions Using Treated Maize Stalk Charcoal

Mutai, Duncan Cheruiyot (University of Embu, 2019)

Discharge of toxic heavy metals into the environment as industrial waste causes extensive soil and water pollution. The associated risk of pollution of heavy metals has increased over the recent years to a great extent. ...
Equilibrium Studies For Adsorption Of Pb2+ Ions From Aqueous Solution Using Activated Maize Stalk Charcoal

Musyoki, David Munyao (University of Embu, 2019)

Over the past years the world has experienced an increasing environmental problem due to the contamination of water bodies and the ecosystem by discharge of toxic heavy metals. Heavy metals are non-biodegradable pollutants ...
Biosorption of Chromium (Iii) Ions Onto Banana Petiole

Unknown author (University of Embu, 2019)

Water pollution is a major issue in Kenya. It has continuously led to issues of clean water shortage which had led to citizens to use water that doesn’t meet safety standards. Heavy metals (metals which have densities of ...
Investigation of the Effect Of Ce3+ Doping on The Luminescent Properties of Baal2o4:Ce3+.

Moturi, Maxwell (University of Embu, 2019)

Discovery and invention of different luminescent material has greatly contributed to the growth of the global economy, especially the technology. Different elements especially the lanthanides have been research in terms ...
Structural And Luminescent Properties Of CaAl2O4:Ce3+ Nanomaterials

Anunda, K. Peter (University of Embu, 2019)

A luminescent material can be defined as a material that emits light when exposed to radiations such as ultraviolet light. These materials find a wide range of application especially in engineering field. The most common ...
Equilibrium Studies For The Adsorption Of Cd (Ii) Using Treated Maize Stalk Biochar

Kiplangat, Hillary (University of Embu, 2019)

The release of overwhelming metals into nature has turned into a matter of concern in Kenya over the last few years. These pollutants are introduced into the environment significantly as a result of various industrial ...
Structural and Optical Characteristics of Rare Earth Doped Calcium Oxide Phosphor Material.

Barasa, Juma Anold (University of Embu, 2019)

Understanding and examining the influence of rare earth elements on structural and optical properties of phosphors has become tremendous topic of interest. Despite a large number of research on the phenomenon the mechanism ...

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Browsing Department of Physical Sciences by Issue Date

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