Browsing Materials, Energy, Water and Environmental Sciences by Title
Now showing items 331-350 of 582
-
Metallic iron for water treatment: leaving the valley of confusion
(Springer, 2017-07-31)Researchers on metallic iron (Fe0) for environmental remediation and water treatment are walking in a valley of confusion for 25 years. This valley is characterized by the propagation of different beliefs that have resulted ... -
Methylammonium tin iodide perovskite: structural, electronic and thermodynamic properties by a DFT study with different exchange–correlation functionals
(Springer Nature Switzerland AG., 2020-03-20)Lead-free perovskites have drawn much attention of researchers in the field of electronics and photovoltaics due to the toxicity issue of the lead halide perovskites. The methylammonium tin iodide CH3NH3SnI3 amongst others ... -
Meticulous Overview on the Controlled Release Fertilizers
(Hindawi Publishing Corporation Advances in Chemistry, 2014-08-28)Owing to the high demand for fertilizer formulations that will exhaust the possibilities of nutrient use efficiency (NUE), regulate fertilizer consumption, and lessen agrophysicochemical properties and environmental adverse ... -
Microbial Diversity in Bushmeat Samples Recovered from the Serengeti Ecosystem in Tanzania
(Scientific Reports, 2019-12-02)Bushmeat, the meat and organs derived from wildlife species, is a common source of animal protein in the diets of those living in sub-Saharan Africa and is frequently associated with zoonotic spillover of dangerous ... -
Modeling and optimization of independent factors influencing lead(II) biosorption from aqueous systems: A statistical approach
(Elsevier, 2022-07)Lead, [Pb(II)] is a major hazardous contaminant that exists in the soil, surface, and groundwater as a result of human activities. It is carcinogenic in nature and causes damage to the liver, kidney, and bones as well as ... -
Modeling and optimization of trivalent arsenic removal from wastewater using activated carbon produced from maize plant biomass: a multivariate experimental design approach
(Springer Nature Limited, 2023-06-24)Globally, both industrialized and developing nations struggle with the issue of water pollution due to heavy metals. Human life depends on water, and when it is contaminated with dangerous heavy metals like arsenic, people’s ... -
Modeling the capacitive deionization batch mode operation for desalination
(Elsevier, 2014-09-25)Capacitive deionization (CDI) is an emerging desalination technology in which saline water flows through a pair of polarized/biased electrodes. The cations and anions are attracted towards the negative and positive electrodes, ... -
Modelling and optimization of multiple replacement of supplementary cementitious materials for cement composite by response surface method.
(Elsevier Ltd., 2024-03-07)Supplementary cementitious materials are beneficial in improving performance and lessening the cement con- sumption with highly lessening CO2 emission. Many researchers used blast furnace slag, bentonite, and active limestone ... -
Modelling of energy demand and supply patterns in Tanzania
(2016-04)Energy is an important element in realizing the interrelated socio-economic development of countries. In an attempt to develop long term energy demand and supply patterns that would enable the country meet her growing ... -
Modification of municipal wastewater for improved biogas recovery
(IWA Publishing, 2020-06-24)The energy demand which is expected to increase more worldwide has sparked the interest of researchers to find sustainable and inexpensive sources of energy. This study aims to integrate energy recovering step into municipal ... -
Modification strategies to enhance electrosorption performance of activated carbon electrodes for capacitive deionization applications
(Elsevier, 2019-09-01)Capacitive deionization (CDI) is the competitive technology for water desalination which appears to become an alternative to conventional methods such as ion exchange resins, reverse osmosis, and electrodeionization. Variety ... -
Molecular and ionic clusters existing in vapor over cesium chloride: Structure and thermodynamic properties
(Elsevier B.V., 2015-02-16)The properties of neutral molecular Cs2Cl2, Cs3Cl3 and Cs4Cl4 and the positively charged ionic clusters Cs4Cl3+ and Cs5Cl4+ existing in vapor over cesium chloride have been studied. The DFT method with B3LYP5 and B3P86 ... -
Molecular and Ionic Clusters of Rubidium Fluoride: Theoretical Study of Structure and Vibrational Spectra
(Science Publishing Group, 2015-10-19)In this study, the geometrical structure and vibrational spectra of the trimer molecule Rb3F3 and ionic clusters Rb2F + , RbF2 – , Rb3F2 + , and Rb2F3 – were studied by density functional theory (DFT) with hybrid ... -
A Molecular Investigation of the Solvent Influence on Inter- and Intra-Molecular Hydrogen Bond Interaction of Linamarin
(MDPI, 2022-02-11)Linamarin has been reported to have anticancer activities; however, its extraction and isolation using different solvents yield a low amount. Therefore, understanding the physical prop‐ erties, such as solvents’ solubility, ... -
Molecular modification of dye constituents through grafting anchoring groups and pi-spacers: towards DSSCs application
(NM-AIST, 2021-06)Triphenylamine based dyes molecular modification by grafting anchoring groups and spacers was performed within computational framework aimed at potential materials for dye- sensitized solar cells (DSSCs) ... -
Morphological and Chemical Composition Characterization of Commercial Sepia Melanin
(Science and Education Publishing, 2015)Melanins are difficult to characterize because of their intractable chemical properties and the heterogeneity in their structural features. Melanin pigments, in fact, are composed of many different types of monomeric units ... -
Multi-variate regression analysis of lake level variability: A case of semi-closed, shallow rift valley lake in Northern Tanzania
(Elsevier, 2022)Lakes are very important for domestic use, commercial purposes, and ecosystem sustenance; nevertheless, studies on how different stressors influence water resources are limited, posing challenges in the planning and ... -
Mungongo Seeds Oil (Schinziophyton rautanenii) as a Potential Source of Bio-Diesel
(Scientific.Net, 2014-01)Biodiesel from mungongo seeds oil (Schinziophyton rautanenii) was investigated in the present study to determine its suitability for use as substitute of petro diesel. The fuel properties of Mungongo Oil Methyl ester (MOME) ... -
Natural Dye Sensitizer for Grӓtzel Cells: Sepia Melanin
(Science and Education Publishing, 2015)The efficiency of Grätzel cell can be further improved by the anchoring groups, such as COOH to be adsorbed onto the TiO2 surface with a large electronic coupling. Some of the most efficient sensitizers are synthetic dyes ... -
Natural dyes for solar cell application: uv-visible spectra and outdoor photovoltaic performance
(Research Journal in Engineering and Applied Sciences, 2014-09)Successful conversion of visible light into electrical output was achieved by using four locally available natural dyes as wide band gap semiconductor sensitizers in Dye-sensitized solar cells. Natural dyes extracted from ...