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Inorganic Chemistry: Recent submissions

Now showing items 41-60 of 100

SYNTHESIS AND CHARACTERIZATION OF EXTENDED GRAPHITE SHEET/ZnO NANOCOMPOSITE ELECTROCHEMICAL SENSOR FOR THE DETECTION OF PARA-NITROPHENOL

tajebe mekonen, Mulu; adgo, Abebaw Major Advisor (PhD); teju, Endale Co-Advisor (PhD) (Haramaya university, 2018-06)

Extended graphite sheet (EGS) and EGS/ZnO was prepared by chemical reduction method and Zinc oxide (ZnO) was prepared by precipitation methods. The as prepared nanomaterials were characterized by Uv-Vis, FTIR and XRD ...
SYNTHESIS AND CHARACTERIZATION OF MgO/ZnO NANOCOMPOSITE MODIFIED CARBON PASTE ELECTRODE FOR THE DETERMINATION OF CADMIUM AND LEAD IN MILK

teshome kebede, Mesfin (Haramaya university, 2018-02)

Magnesium oxide/zinc oxide nanocomposite was synthesized using hydrothermal methods from Mg(NO3)2.6H2O and Zn(NO3)2.6H2O precursor salts. The morphology, structure and composition of the nanocomposite were characterized ...
SYNTHESIS OF ZEOLITE SUPPORTED Cu2O-Ag3PO4-ZnO NANOCOMPOSITE FOR PHTOCATALYTIC DEGRADATION OF METYLENE BLUE UNDER VISIBLE LIGHT

g/egziabher g/silassie, Mesfin; taddesse, Abi Major Advisor (PhD) (Haramaya university, 2018-03)

Nano sized Cu2O-Ag3PO4-ZnO nanocomposite was prepared by precipitation method using different salt solution and solid state reaction of the as-synthesized nanocomposite with natural zeolite to produce zeolite supported ...
SYNTHESIS AND CHARACTERIZATION OF Fe3O4 /Al2O3 /MnO2 TERNARY MIXED OXIDE NANOCOMPOSITE FOR PHOSPHORUS DESORPTION FROM ACID SOILS USING DIALYSIS MEMBRANE TUBE

hinsene dube, Hirpo; taddesse, Abi Major Advisor (PhD); teju, Endale Co-Advisor (PhD); diaz, Isabel (prof.) (Haramaya university, 2018-06)

In this study, ternary mixed oxide, Fe3O4/Al2O3/MnO2 adsorbents where synthesized for desorption of phosphorus with ratios of NC1 (90:5:5), NC2 (80:15:5) and NC3 (70:15:15) interms of percentage composition of Fe, Al, ...
CHEMICAL COMPOSITION, ANTIMICROBIAL ACTIVITY AND PHYTOCHEMICAL SCREENING OF CRUDE EXTRACTS OF LEAVES OF EHRETIA CYMOSA

kifle taddese, Girum; babu g, Neelaiah Major Advisor (PhD); teju, Endale Co-Advisor (PhD) (Haramaya university, 2018-06)

The plant is used for traditional medicine especially its leaf powder with jelly smear on infected wounds. In the present study, powdered leaf of the plant was sequentially extracted with organic solvents: n-hexane, ...
Fe3O4/ZrO2 NANOCOMPOSITE MODIFIED CARBON PASTE ELECTRODE; PREPARATION, CHARACTERIZATION AND APPLICATION FOR THE DETECTION OF ASCORBIC ACID

bekele sime, Genet; adgo, Abebaw Major Advisor (PhD); teju, Endale Co-Advisor (PhD) (Haramaya university, 2018-06)

Fe3O4, ZrO2 and Fe3O4/ZrO2 nanocomposites were synthesized by chemical co-precipitation method. The structural and morphological properties of the as-synthesized materials were characterized by FTIR, UV-Vis, XRD and SEM. ...
SYNTHESIS AND CHARACTERIZATION OF UIO-66 METAL ORGANIC FRAMEWORKS FOR SORPTION OF LEAD, CADMIUM AND ZINC FROM AQUEOUS SOLUTION

aregay shifera, Genet; taddesse, Abi Major Advisor (PhD); teju, Endale Co-Advisor (PhD); sanchez, Manuel Co-Advisor (PhD) (Haramaya university, 2018-06)

Various industries like galvanizing, metallurgical, electroplating, mining, pharmaceuticals, agrochemicals and leather industry produce metal-containing waste waters that have harmful effects on the environment as well ...
ADSORPTIVE REMOVAL OF Cu(II), Cd(II), Cr(VI) AND Pb(II) IONS FROM AQUEOUS SOLUTION USING CHEMICALLY MODIFIED ORANGE (citrus sinensis) PEEL

getachew tadesse, Gebeyehu; teju, Endale Major Advisor (PhD); bogale, Yeheyis Co-Advisor (PhD) (Haramaya university, 2018-03)

The effect of heavy metals on the environment, public health and aquatic life is a matter of serious concern globally. The removal and recovery of these toxic heavy metal ions from wastewaters is of great importance from ...
Ti(IV) TUNGSTOMOLYBDATE CATION EXCHANGER: APPLICATIONS TO BINARY SEPARATION OF HEAVY METALS, PHOTOCATALYSIS, AND ANTIBACTERIAL ACTIVITIES

gedefa bulto, Feyera; taddesse, Abi Major Advisor (PhD); teju, Endale Co-Advisor (PhD) (2018-08)

α, binary separations have been carried out for four sets of metal ions: Pb(II)−Ni(II), Pb(II)−Cu(II), Cr(III)−Ni(II) and Cr(III)−Cu(II). Photocatalytic activities and antimicrobial activities of nano-titanium(IV) ...
SYNTHESIS AND CHARACTERIZATION OF NANOSTRUCTURED POLYANILINE SUPPORTED g‒C3N4/ZnO/CeO2 SENSOR FOR MALATHION DETECTION

gonfa abdeta, Fantahun; taddesse, Abi Major Advisor (PhD); adgo, Abebaw Co-Advisor (PhD); diaz, Isabel (prof.) (Haramaya university, 2018-06)

In this study, PANI/g‒C3N4/ZnO/CeO2 modified glassy carbon electrode (GCE) electrochemical sensor was developed for the detection of malathion. The structure, optoelectronic properties, surface functional groups, morphology, ...
LEVELS OF SELECTED ESSENTIAL AND NONESSENTIAL METALS IN ROASTED HARARGHE COFFEE BEAN VARIETIES

ayana nikus, Dugassa; teju, Endale Major Advisor (PhD); adgo, Abebaw Co-Advisor (PhD) (Haramaya university, 2018-06)

The present study was conducted to determine the levels of essential and non-essential metals present in Hararghe coffee bean varieties. Three samples of Hararghe coffee bean (HCB) (Harar A, Harar B and Harar C) were ...
DUAL FLUORESCENCE EMISSION OF DONOR- Π- ACCEPTOR SYSTEMS: BENZYL MALONONITRILE AND MELDRUM’S ACID DERIVATIVE FROM GROUND STATE PERSPECTIVE

g/meskel w/giorgis, Desta; tadesse, Ephriem Major Advisor (PhD); babu g, Neelaiah Co-Advisor (PhD) (Haramaya university, 2018-11)

The absorption, steady state fluorescence emission and excitation spectra of p-N, N- (Dialkaylamino) benzylidenemalononitrile (DMN), benzylidenemalononitrle (BMN), p-N, N- (Dialkaylamino) benzylideneMeldrum’s acid (DMA) ...
LEVELS OF SELECTED HEAVY METALS IN SOIL AND LEAFY VEGETABLES FROM HIRNA AREAS, ETHIOPIA

teklewold haileslassie, Dejenu; teju, Endale Major Advisor (PhD); bogale, Yeheyis Co-Advisor (PhD) (Haramaya university, 2018-11)

Leafy Vegetables widely consumed in Hirna, Western Hararghe, Ethiopia such as cabbage (Brassica oleracea var), lettuce ( Lectuca sativa L.) and Swiss chard (Beta vulgaris L.var .cicla) are cultivated on the main roadside ...
Fe3O4/Al2O3/ZrO2 TERNARY OXIDE NANOCOMPOSITE: SYNTHESIS, CHARACTERIZATION AND PHOSPHATE DESORPTION STUDY FROM ACID SOIL USING DIALYSIS MEMBRANE TUBES (DMTs)

alemu mammo, Dawit; taddesse, Abi Major Advisor (PhD); kebede, Tesfahun Co-Advisor (PhD); diaz, Isabel (prof.) (Haramaya university, 2018-05)

Phosphorus (P) is an essential element for plant and animal growth; although plant roots are capable of absorbing P from the soil solution at low P concentrations, most soils cannot supply sufficient amounts of P to the ...
EVALUATING THE POTENTIAL OF DIAGNOSTIC INSTRUMENTS IN INDENTIFYING STUDENTS‟ MISCONCEPTIONS ON CHEMICAL BONDING: THE CASE OF CHELENKO PREPARATORY AND KERSA PREPARATORY SCHOOLS, EASTERN HARARGE

admasu negewo, Daniel; kebede, Tesfahun Major Advisor (PhD); taddesse, Abi Co-Advisor (PhD) (Haramaya university, 2018-03)

This research study aimed to evaluating the potential of diagnostic instruments in identifying students’ misconceptions on chemical bonding concepts such as ionic bonding, covalent bonding, and related chemistry concepts ...
PHYTOCHEMICAL INVESTIGATION AND ANTIMICROBIAL ACTIVITIES OF EXTRACT OF LEAF OF WITHANIA SOMNIFERA

tatek mengistu, Dagnachew; babu g., Neelaiah Major Advisor (PhD); teju, Endale Co-Advisor (PhD) (Haramaya university, 2018-06)

human ailments (the leaf part) including gastric, ulcers, colds and skin rashes in Ethiopia. In the present study, W.somnifera (Solaneceae) leaf extracts were investigated for their phytochemicals and antimicrobial ...
SYNTHESIS AND CHARACTERIZATION OF ZnO/Co3O4/REDUCED GRAPHENE OXIDE NANOCOMPOSITE FOR NON- ENZYMATIC ELECTROCHEMICAL GLUCOSE SENSOR

hussein ali, Beshir; adgo, Abebaw Major Advisor (PhD); taddesse, Abi Co-Advisor (PhD) (Haramaya university, 2018-02)

Cobalt oxide (Co3O4) and zinc oxide (ZnO) nanoparticles were synthesized by a direct precipitation method whereas the binary ZnO/Co3O4 nanocomposite and ternary ZnO/Co3O4/rGO nanocomposite were synthesized by simple ...
PHOTOCATALYTIC DEGRADETION OF METHYLENE BLUE AND ANTIBACTERIAL ACTIVITY OF POLYANILINE TIN(IV) MOLYBDOPHOSPHATE COMPOSITE

assefa sime, Belayneh; taddesse, Abi Major Advisor (PhD); kebede, Tesfahun Co-Advisor (PhD) (Haramaya university, 2018-04)

Polyaniline-tin (IV) molybdophosphate (PANI /TMP) was prepared using sol–gel method by mixing polyaniline (PANI) gel into the inorganic precipitates of Tin (IV) molybdophosphate (TMP). The composite was characterized by ...
SYNTHESIS AND CHARACTERIZATION OF CELLULOSE ACETATE TITANIUM (IV) TUNGSTOMOLYBDATE NANOCOMPOSITE CATION EXCHANGER FOR REMOVAL OF SELECTED HEAVY METALS FROM AQUEOUS SOLUTION

minase w/gebireal, Belay; teju, Endale Major Advisor (PhD); taddesse, Abi Co-Advisor (PhD) (Haramaya university, 2018-06)

Cellulose acetate titanium (IV) tungstomolybdate nanocomposite cation exchanger was synthesized by sol-gel method by incorporating cellulose acetate polymer into inorganic exchanger, titanium (IV) tungstomolybdate. ...
SYNTHESIS, CHARACTERIZATION AND ANTIMICROBIAL PROPERTIES OF Ni(II) AND Cu(II) COMPLEXES OF SCHIFF BASE DERIVED FROM FURFURAL SEMICARBAZONE

buta mekuria, Gosa; bogale, Yiheyis Major Advisor (PhD); babu g, Neelaiah Co-Advisor (PhD) (2017-08)

Schiff base ligand and their Metal complex are important compounds owing to their wide range of biological activities. Metal complexes of Cu(II) and Ni(II)have been synthesized from the Schiff base ligand, furfural ...

Now showing items 41-60 of 100

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