Browsing Department of Physical Sciences by Issue Date
Now showing items 1-16 of 16
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(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 ...
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(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 ...
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(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 ...
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(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 ...
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(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 ...
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(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 ...
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(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. ...
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(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 ...
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(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 ...
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(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. ...
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(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 ...
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(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 ...
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(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 ...
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(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 ...
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(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 ...
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(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 ...
Now showing items 1-16 of 16