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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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, ...
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 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 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 ...
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 ...
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 ...
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 ...
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 ...
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 ...