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Inorganic Chemistry: Recent submissions

Now showing items 21-40 of 101

SYNTHESIS AND CHARACTERIZATION OF NICKELTUNGESTEN/ REDUCED GRAPHENE OXIDE NANOCOMPOSITE BASED AMMONIA SENSOR

Gorfu Zikie, Kefelegn; Adgo, (PhD) Abebaw; Taddesse, (PhD) Abi (Haramaya university, 2019-08)

Nickel-tungsten/reduced grapheme oxide (NiW/RGO) nanocomposite was prepared by using chemical reduction method for electrochemical detection of ammonia. Ni/RGO and Ni-W different ratio/RGO nanocmposite were also synthesized ...
DIAGNOSIS OF GRADE 12 STUDENTS ALTERNATIVE CONCEPTS ON CONCEPTS OF ELECTROCHEMISTRY USING A FOUR TIER TEST

Deneke W/Aregay, Daniel; Temesgen, (PhD) Ayalew (Haramaya university, 2020-06)

Electrochemistry is one of the branch of chemistry that plays a great role in our daily life. However, many study revealed that students have difficulty to understand it due to its abstract nature and they hold an ...
SYNTHESIS AND CHARACTERIZATION OF PANI/ZnO/Fe2O3 NANOCOMPOSITE FOR ELECTROCHEMICAL DETECTION OF AMMONIA

Wondie Adissu, Berhanu; Adgo, (PhD) Abebaw; Taddesse (PhD), (PhD) Abi (Haramaya university, 2019-12)

The PANI/ZnO/Fe2O3 nanocomposites with different weight ratios (1:2, 1:1 and 2:1) were synthesized effectively via in-situ oxidative polymerization method. The structure and morphology of these as synthesized nanomaterials ...
PREPARATION OF POLYANLINE SUPPORTED g-C3N4/TiO2/Ag2CO3 NANOCOMPOSITE WITH ENHANCED PHOTOCATALYTIC ACTIVITY FOR METHYELEN BLUE DYE DEGRADATION

Yusuf Usma’el, Dine; Taddesse, (PhD) Abi; Kebede, (PhD) Tesfahun; Dias, (Prof.) Isabel (Haramaya university, 2020-08)

In this study, we report the synthesis, characterization and photocatalytic activities of novel polyaniline supported ternary nanocomposite (PANI supported g-C3N4/TiO2/Ag2CO3). Crystal structures, absorption edges (band ...
PHYTOCHEMICAL INVESTIGATION AND ANTIMICROBIAL ACTIVITY OF LEAF EXTRACTS OF STEREOSPERMUM KUNTHIANUM

brhane berhe, Atsibeha; babu g, Neelaiah Major Advisor(PhD); teju, Endale Co-Advisor (PhD) (Haramaya university, 2018-05)

Natural products have been a source of drugs for centuries. The decoction or infusion of the stem-bark of Stereospermum kunthianum which is used to cure bronchitis, pneumonia, cough, and dysentery. The present study was ...
SYNTHESIS AND CHARACTERIZATION OF rGO/UiO-66/Ag3PO4 NANOCOMPOSITES FOR PHOTOCATALYTIC DEGRADATION OF METHYL ORANGE (MO) UNDER VISIBLE LIGHT IRRADIATION

hadush amare, Abriha; taddesse, Abi Major Advisor(PhD); kebede, Tesfahun Co-Advisor (Haramaya university, 2018-06)

Various industries like textile, plastic, pulp, and paper produce dye-containing waste waters that have harmful effect on the environment as well as human health. Developing a method to abate the pollution problem by ...
SYNTHESIS AND CHARACTERIZATION OF CdS/Ag2CO3 and UiO66/CdS/Ag2CO3 NANOCOMPOSITE ELECTROCHEMICAL SENSOR FOR THE DETERMINATIONS OF TRACE METAL IONS

getachew w/tensae, Abel (Haramaya university, 2018-03)

Zirconium based Metal organic framework (UiO-66), Cadmium sulfide (CdS), silver carbonate (Ag2CO3), binary system CdS/UiO-66, UiO-66/Ag2CO3, CdS/Ag2CO3 and the ternary CdS UiO-66/Ag2CO3 by sol-gel and co-precipitation ...
MODIFICATION OF CARBON PASTE ELECTRODE BY Fe3O4/ZnO NANOCOMPOSITE FOR ANODIC STRIPPING VOLTAMMETRIC DETERMINATION OF Cd AND Pb IONS

tesema yadete, mesfin; adgo, Abebaw Major Advisor (PhD); teju, Endale Co-Advisor(PhD) (Haramaya university, 2019-06)

Fe3O4, ZnO and Fe3O4/ZnO nanomaterials were synthesized successfully using by co- precipitation method from FeCl3. 6H2O, FeCl2.4H2O and Zn(NO3)2. 6H2HO precursor salts. The structural, functional group and optical properties ...
KINETICS AND ADSORPTION EFFICIENCY OF AMBO SANDSTONE FOR THE REMOVAL OF HEAVY METALS (Cr And Ni) FROM AQUEOUS SOLUTION

daba negu, Mesay; aschale, minable Major Advisor (PhD); teju, Endale Co-Advisor(PhD) (Haramaya university, 2019-04)

In developing countries, most of the industries such as electroplating, textile, fertilizer, batteries, leather, and others discharge large amount of untreated wastewater into water bodies. This untreated water contains ...
KINETICS AND EQUILIBRIUM STUDIES FOR THE ADSORPTION OF LEAD (II) AND CHROMIUM (VI) IONS FROM AQUEOUS SOLUTION USING PUMICE

g/mariam berhe, medhin; teju, Endale Major Advisor (PhD; taddesse, Abi Co-Advisor(PhD) (Haramaya university, 2019-06)

The main target of this study was to investigate the efficiency of pumice on the removal of Cr(VI) and Pb(II) ions from aqueous solution. The experimental procedure for the adsorptive removal of the two cations was carried ...
THE EFFECT OF CONTEXT-BASED LEARNING ON THE CONCEPTS OF ELECTROCHEMISTRY ON STUDENTS ACHIEVEMENT AND ATTITUDE: THE CASE OF UDE SECONDARY SCHOOL IN ADEAWEREDA, OROMIYA REGION, ETHIOPIA.

tefera ebrahim, Kedir; temesgen, Ayalew Major Advisor (PhD); bekana, deribachew Co-Advisor(PhD) (Haramaya university, 2019-06)

Effective teaching of any subject will not only stimulate students’ interest in the subject, but also enhance applicability of the concept in real life situations. The purpose of this research is to study the effects of ...
SYNTHESIS, CHARACTERIZATION AND PHOTOCATALYTIC ACTIVITY OF ZEOLITE SUPPORTED MWCNTs/ZnO/CeO2 NANOCOMPOSITE

belachew taddesse, Taile; taddesse, Abi Major Advisor (PhD); kebede, Tesfahun Co-Advisor(PhD); diaz, Isabel Co-Advisor (Prof.) (Haramaya university, 2019-06)

In this study, various types of photocatalysts were synthesized viz., ZnO, CeO2, ZnO/CeO2, via precipitation method and MWCNTs/ZnO, MWCNTs/ZnO/CeO2 and zeolite supported MWCNTs/ZnO/CeO2 were prepared by impregination ...
SYNTHESIS, CHARACTERIZATION AND ANTIMICROBIAL STUDIES OF Cu (II) AND Ni (II) COMPLEXES OF SCHIFF BASE DERIVED FROM INDOLE-3-CARBOXALDEHYDE AND 2-AMINO-3-BROMO-5NITRO PYRIDENE

bekele telila, Eshetu; bogale, yiheyis Major Advisor (PhD); babu g, Neelaiah Co-Advisor (PhD) (Haramaya university, 2019-02)

The Ligand, (E)-N-((1H-Indole-2-yl) methylene)-3-bromo -6-nitropyridine-2- amine, C14H9N4O2 has been synthesized from indole-3-carboxaldehyde and 2-amino-3-bromo-5-nitropyridine by condensation reaction and the resulting ...
SYNTHESIS, CHARACTERIZATION AND HETEROGENEOUS CATALYSIS OF CERIUM METAL ORGANIC FRAMEWORKS (Ce- UiO-66) AND ITS INORGANIC HYBRIDS ON KNOVENAGEL CONDENSATION

godana boynito, Dingetegna; taddesse, Abi Major Advisor (PhD); babu, Neelaiah Co-Advisor(PhD) (Haramaya university, 2019-06)

Heterogeneous catalysis is one of the most explored applications of metal-organic frameworks. Metal organic frameworks (MOFs) as exciting types of organic/inorganic hybrid materials have attracted great focus of scientists ...
SYNTHESIS, CHARACTERIZATION AND PHOTOCATALYTIC ACTIVITY OF ZEOLITE SUPPORTED g - C3N4/CeO2/Ag3PO4 NANOCOMPOSITES FOR METHYL ORANGE DYE DEGRADATION

tamasgen asras, Alamayo; taddesse, Abi Major Advisor (PhD); adgo, Abebaw Co-Advisor (PhD); diaz, Isabel Co-Advisor (Prof.) (Haramaya university, 2019-06)

Photocatalytic technology has been shown to constitute one of the most promising processes for wastewater treatment. In this work single, binary and ternary systems of photocatalysts have been synthesized by varying the ...
POLYANILINE SUPPORTED g-C3N4/CeO2 FLUORESCENT CHEMOSENSOR: SYNTHESIS, CHARACTERIZATION AND APPLICATION FOR ARSENIC(III), COPPER (II), MERCURY(II) AND NITRATE IONS DETERMINATION

hussen ali, Abdu; taddesse, Abi Major Advisor (PhD); adgo, Abebaw Co-advisor (PhD); diaz, Isabel Co-Advisor (Prof.) (Haramaya university, 2019-06)

The increasing of toxic heavy metal and nitrate ions contamination in water and food systems in worldwide has become a core problem. Therefore, the development of real-time, highly sensitive and selective, simple technique ...
SYNTHESIS AND CHARACTRISATION OF Fe3O4/PANI /CHITOSAN NANOCOMPOSITE AS ELECTROCHEMICAL SENSOR FOR THE DETERMINATION OF Cd( II) AND Pb(II) IONS

tamirat tesfaye, Wogene; adgo, Abebaw Major Advisor (PhD); taddesse, Abi Co-Advisor (PhD) (Haramaya university, 2018-10)

Magnetite (Fe3O4) was produced using co-precipitation method while polyaniline (PANI) and Fe3O4/PANI nanocomposite were synthesized using in-situ polymerization of aniline in aqueous solution of Fe3O4 in the presence of ...
SYNTHESIS AND CHARACTERIZATION OF POLYANILINE/NiO NANOCOMPOSITE FOR ELECTROCHEMICAL DETERMINATION OF DOPAMINE

fentahun yihun, Tihunie; adgo, Abebaw Major Advisor (PhD); teju, Endale Co-Advisor (PhD) (Haramaya university, 2018-02)

Al2O3 nanoporous was synthesized by using sol-gel method from aluminum nitrate nano hydrate precursor solution. On the other hand, Fe3O4 nanoparticles and Al2O3/Fe3O4 nanocomposite were synthesized by co-precipitate ...
SYNTHESIS AND CHARACTERIZATION OF POLYANILINE/NiO NANOCOMPOSITE FOR ELECTROCHEMICAL DETERMINATION OF DOPAMINE

abera mengesha, Tesfaye; adgo, Abebaw Major Advisor (PhD); teju, Endale Co Advisor (PhD) (Haramaya university, 2018-08)

Polyaniline-nickel(II)oxide (PANI/NiO) nanocomposites was prepared using in-situ polymerization method. The structural properties of as produced PANI, NiO and PANI/NiO nanocmposte were characterized by employing X-ray ...
GROUND AND EXCITED STATE DIPOLE MOMENTS OF ELONGATED P-AMINOBENZOICACID ANALOGUE, 4-((4)DIAZENYL)BENZOIC ACID, FROM SOLVATOCHROMIC ANALYSES BY MODIFIED SOLVATOCHROMIC EQUATIONS

berhanu alkao, Sintayehu; tadesse, Ephriem Major Advisor (PhD); maria, Boobalana Co-Advisor (PhD) (Haramaya university, 2018-11)

n the present study, 4-((4-aminophenyl)diazenyl)benzoic acid (4-APDBA) has been synthesized via electrophilic aromatic substitution of activated benzene derivatives through diazonium electrophiles by self-coupling of ...

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