Appolinus I. C. Ehirim

Availability and Utilization of Instructional Materials in the Teaching and Learning of Chemistry in Secondary Schools in a Council Area of Imo State, Nigeria

Appolinus I. C. Ehirim, Paschal I. Iwuchukwu & Blessing E. Okenyi · Asian Journal of Education and Social Studies · 2020

The study investigated the availability and utilization of instructional materials in the teaching and learning of chemistry at the senior secondary schools in Owerri Municipal Council Area of Imo state. 1948 chemistry students in senior secondary (SS) two classes and 32 chemistr...

Open access Research Article 10.9734/ajess/2020/v9i330249

Pragmatic Approach to the Removal of Cu(II)ions from Aqueous Solution using Silica: A Kinetic, Isothermal and Thermodynamic Study

Kenneth O. Amanze, Janet O. Amanze, Glory Okore, Lynda C. Ngozi-Olehi, Okeke Pamela I., Rosemary I. Uchegbu, Appolinus I. C. Ehirim & Gabriel C. Eze · Journal of Materials Science Research and Reviews · 2025

The main objective of this study was to investigate the removal of copper(II) ions [Cu (ii)] from aqueous solution by adsorption unto pure silica. The silica was characterized by using Fourier Transform Infra-Red (FT-IR) spectral analysis before and after adsorption of the metal...

Open access Research Article 10.9734/jmsrr/2025/v8i2413