• SYNTHESIS, CHARACTERIZATION AND ANTIMICROBIAL ACTIVITY STUDY OF NOVEL SPIRO [INDOLINE-2, 2-PYRROLIDIN] - 3-ONES THROUGH 1, 3-DIPOLAR CYCLOADDITION 

  Kefelegn Demissie Bekele; Muthusaravanan S. (PhD); Neelaiah Babu G. (PhD) (Haramaya University, 2023-11)

  Pyrrolidine is a heterocyclic compound which has one nitrogen atom in the five membered ring (C4H9N) with extensive applications in various medical and industrial fields. In this study two pyrrolidine derivatives P1and P2 ...
• OPTIMIZATION OF ELECTRONIC STRUCTURE AND OPTOELECTRONIC PROPERTIES OF VINYL FUSED MONOMERIC AND OLIGOMERIC BENZOTHIAZOLES–A QUANTUM CHEMICAL INVESTIGATION 

  Mechalu Abebe Adose; (PhD) Boobalan Maria Susai; (PhD) Endale Teju (Haramaya University, 2022-05)

  Organic semiconductors are new important technologies for large-area and flexible thin-film electronics. They are deposited into electronic devices to enhance their overall performance and efficiency. Therefore, studying ...
• ELECTRONIC STRUCTURE AND OPTOELECTRONIC PROPERTIES OF VINYL FUSED MONOMERIC AND OLIGOMERIC BENZOTHIAZOLES–A QUANTUM CHEMICAL INVESTIGATION 

  Mechalu Abebe Adose; Boobalan Maria Susai (PhD); Endale Teju (PhD) (Haramaya University, 2022-05)

  Organic semiconductors are new important technologies for large-area and flexible thin-film electronics. They are deposited into electronic devices to enhance their overall performance and efficiency. Therefore, studying ...
• CHEMICAL ADSORPTION OF SELECTED HEAVY METAL IONS FROM AQUEOUSSAMPLE USING MANGO SEED POWDER 

  KebedeAdamu, Hailu; Teju, (PhD) Endale; Amde, (PhD) Meseret (Haramaya university, 2020-10)

  The current work sought to establish a low-cost effective adsorbent by utilizing mango seed powder (MSP), agricultural waste, as a resource to prepare adsorbent material for the removal of selected heavy metals. Among the ...
• QUANTITATIVE ADSORPTON OF SELECTED HEAVY METALS FROM AQUEOUS SOLUTION USING LOCALLY AVAILABLE CLAY 

  TESHOME, ABAYNEH(MSc) (HARAMYA UNIVERSITY, 2020-09)

  This study aims to examine the potential of natural,calcined and chemically modified clay soil from Ethiopia ,Oromia Region, West Hararghe Zone, Oda Bultum Woreda, Sakata Village as an effective adsorbent material for ...
• CHEMICAL ADSORPTION OF SELECTED HEAVY METAL IONS FROM AQUEOUSSAMPLE USING MANGO SEED POWDER 

  KebedeAdamu, Hailu; Teju, (PhD) Endale; Amde, (PhD) Meseret (Haramaya university, 2020-10)

  The current work sought to establish a low-cost effective adsorbent by utilizing mango seed powder (MSP), agricultural waste, as a resource to prepare adsorbent material for the removal of selected heavy metals. Among the ...
• POLYANILINE SUPPORTED g-C3N4/TiO2/CeO2 NANOCOMPOSITE:SYNTHESIS, CHARACTERIZATION AND PHOTOCATALYTIC ACTIVITY FOR METHYL BLUE DYE DEGRADATION 

  Lamboro Maye, Sugamo; Taddesse, (PhD) Abi; Kebede, (PhD) Tesfahun; Diaz, (Prof.) Isabel (Haramaya university, 2020-01)

  In the present work, different types of photocatalysts in single, binary, and ternary systems with different molar ratios were prepared. TiO2 was synthesized by sol-gel method from the (Ti (OBut)4); g-C3N4 was synthesized ...
• POLYANILINE SUPPORTED g-C3N4/TiO2/CeO2 NANOCOMPOSITE:SYNTHESIS, CHARACTERIZATION AND PHOTOCATALYTIC ACTIVITY FOR METHYL BLUE DYE DEGRADATION 

  Lamboro Maye, Sugamo; Taddesse, (PhD) Abi; Kebede, (PhD) Tesfahun; Diaz, (Prof.) Isabel (Haramaya university, 2020-01)

  In the present work, different types of photocatalysts in single, binary, and ternary systems with different molar ratios were prepared. TiO2 was synthesized by sol-gel method from the (Ti (OBut)4); g-C3N4 was synthesized ...
• CHEMICAL ADSORPTION OF SELECTED HEAVY METAL IONS FROM AQUEOUSSAMPLE USING MANGO SEED POWDER 

  KebedeAdamu, Hailu; Teju, (PhD) Endale; Amde, (PhD) Meseret (Haramaya university, 2020-10)

  The current work sought to establish a low-cost effective adsorbent by utilizing mango seed powder (MSP), agricultural waste, as a resource to prepare adsorbent material for the removal of selected heavy metals. Among the ...
• SYNTHESIS,CHARACTERIZATION AND PHOTOCATALYTICACTIVITY OF ZEOLITE SUPPORTED CdS/TiO2/Ag3PO4 NANOCOMPOSITE FOR METHYL ORANGE DYE DEGRADATION 

  Abosse Erbalo, Ayele; Taddesse, (PhD) Abi; Adgo, (PhD) Abebaw (Haramaya university, 2020-01)

  In this study, various photocataltic materials viz.,single (TiO2,CdS,Ag3PO4), binary(CdS/TiO2; Ag3PO4/TiO2) and ternary (CdS/TiO2/Ag3PO4) systems have been prepared via precipitation and impregnation methods. A geomedia, ...
• THE IMPACT OF CONTEXT BASED ACTIVITIES ON THE CONCEPT OF CHEMICAL EQUILIBRIUM ON GRADE 11 STUDENTS’ ACHIEVEMENT AND ATTITUDE: THE CASE OF BORENA PREPARATORY SCHOOL 

  Ababu Demissie, Moges; Temesgen, (PhD) Ayalew; Bogale, (PhD) Yiheyis (Haramaya university, 2020-12)

  This study aimed to determine the impact of context-based activities in teaching Grade 11 students’ achievement and attitude on the concept of chemical equilibrium as compared to the usual teaching approach. A quasi-experimental ...
• THE EFFECT OF USING CONCEPT MAP ON STUDENTS’ ACHIEVEMENT IN CHEMICAL BONDING: THE CASE OF LIMAT BER PREPARATORY AND SECONDARY SCHOOL 

  Migib Adane, Fekadu; Temesgen, (PhD) Ayalew; Bogale, (PhD) Yiheyis (Haramaya university, 2020-12)

  The purpose of this research was to examine the effect of using concept map on grade 11 natural science students’ achievement in chemical bonding and assess their attitude towards the approach. In this study, 25 male and ...
• THE EFFECT OF USING CONCEPT MAP ON STUDENTS’ ACHIEVEMENT IN CHEMICAL BONDING: THE CASE OF LIMAT BER PREPARATORY AND SECONDARY SCHOOL 

  Migib Adane, Fekadu; Temesgen, (PhD) Ayalew; Bogale, (PhD) Yiheyis (Haramaya university, 2020-12)

  The purpose of this research was to examine the effect of using concept map on grade 11 natural science students’ achievement in chemical bonding and assess their attitude towards the approach. In this study, 25 male and ...
• EFFECT OF ANALOGY APPROACH ON THE CONCEPTS OF RATES OF CHEMICAL REACTIONS ON STUDENTS’ ACHIEVEMENT AND ATTITUDE 

  Tsegaye Cherinet, Zelalem; Temesgen, Dr. Ayalew; Bogale, Dr. Yiheyis (Haramaya university, 2019-11)

  The aim of this study was to investigate the effect of analogical instruction as compared to the lecture approach on concepts of rates of chemical reactions on grade 11 students’ achievement and attitude. A quasi-experimental ...
• PHYTOCHEMICAL INVESTIGATION, AND INSECTICIDAL FORMULATION BASED ON ECHINOPS KEBERICHO MESFIN ROOT EXTRACT SUPPORTED ON MODIFIED KAOLINITE AGAINST SITOPHILUS ZEAMAIS 

  Haile Ado, Wuditu; Taddesse, (PhD) Abi; Dekebo, (PhD) Aman; Babu G. (PhD), Neelaiah (Haramaya university, 2020-06)

  The Echinops kebericho Mesfin root extract was investigated for its phytochemical constituents and its essential oil was formulated using modified and unmodified kaolinite clay as supporting material. To this effect, the ...
• ASSESSMENT OF STUDENTS’ ALTERNATIVE CONCEPTIONS ON THE CONCEPTS OF CHEMICAL THERMODYNAMICS USING A FOUR-TIER DIAGNOSTIC INSTRUMENT 

  Wondimu Atrsaw, Sisay; Temesgen, (PhD) Ayalew; Kebede, (PhD) Tesfahun (Haramaya university, 2019-11)

  Correct identification of misconception is an important first step in order to gain an understanding of student learning. More recently, four- tire multiple choice test have been found to be effective in assessing students ...
• REMOVAL OF Zn2+, Cd2+ AND Pb2+ FROM AQUEOUS SOLUTION BY CHEMICALLY MODIFIED POTATO (Solanum tuberosum) PEEL 

  Ahmed Muhammed, Nuru; Teju, (PhD) Endale; Bogale, (PhD) Yiheyis (Haramaya university, 2020-06)

  In the present study potato, peel was used as a bio-sorbent for removal of heavy metal ions from aqueous solutions. The bio-sorption tendency of Pb2+, Cd2+ and Zn2+ ions onto modified and unmodified potato peel was ...
• 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 ...

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