Article Per Year (5 Year)
p-Index From 2021 - 2026
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This Author published in this journals
All Journal Indonesian Journal of Chemical Studies (Indones. J. Chem. Stud.) Journal of General Education and Humanities
Hayat, Moh
Unknown Affiliation
Humanities Chemistry Languange, Linguistic, Communication & Media Mathematics Other

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Level of Student Satisfaction with the Performance of Electrochemical Analysis Practice Instructors Hayat, Moh; Muchyidin, Arif; Asrorudin, Udin
Journal of General Education and Humanities Vol. 4 No. 1 (2025): February
Publisher : MASI Mandiri Edukasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58421/gehu.v4i1.399

Abstract

This study aims to analyze student satisfaction with instructors' performance in Electrochemical Analysis Practice at AKA Bogor Polytechnic. This study uses a quantitative approach with a survey method. Data was collected through a questionnaire based on the Likert scale, which was distributed to 23 students who had completed the course. Data analysis is carried out descriptively with frequency and percentage calculations, then converted into qualitative information. The study results showed that the overall level of student satisfaction was in the "good" category, with an average of 72.24%. The aspect of professionalism obtained the highest score (73.62%), while the aspect of practice implementation had the lowest score (69.56%). These results show that even though students are satisfied, there is room for improvement, especially in implementing practice. The main recommendations are developing technology-based teaching materials, improving laboratory equipment, and providing more comprehensive practical tutorials. This finding is expected to improve the quality of electrochemistry practicum learning.
Development and Characterization of Gold Nanoparticle-Modified SPCEs for the Electrochemical Sensing Diksy, Yuris; Tirta, Ardina Purnama; Herawati; Mulyawan, Reza; Hayat, Moh; Asrorudin, Udin
Indonesian Journal of Chemical Studies Vol. 4 No. 2 (2025): Indones. J. Chem. Stud. December 2025
Publisher : Indonesian Scholar Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55749/ijcs.v4i2.71

Abstract

Gold nanoparticles were successfully synthesized by reducing HAuCl4 using jengkol (Archidendron pauciflorum) extract as a reductant. The synthesized gold nanoparticles were characterized by UV–vis spectroscopy and particle size analyzer (PSA). The synthesized gold nanoparticles were deposited on the screen printed carbon electrode (SPCE) substrate using 2 methods, drop casting and differential pulse voltammetry over a potential range of (-1500) mV to 600 mV, scan rate of 100 mV/s for 5 cycles. The surface plasmon resonance (SPR) band of UV– Vis spectrum at 530.7 nm confirmed the presence of gold nanoparticles. The results of Au nanoparticle characterization using PSA show that the size of the Au-NPs formed is 33.5 nm with an optimal HAuCl4 concentration of 0.20 mM. Characterization of gold nano-deposited SPCE was carried out by measuring the peak current of the 1 mM K3Fe(CN)6/K4Fe(CN)6 system in KCl electrolyte solution (0.1 M) using cyclic voltammetry over a potential range of (-500) mV to 1000 mV, scan rate 100 mV/s for 5 cycles. Gold nanoparticles deposited by differential pulse voltammetry showed a higher current response compared to drop casting deposition.
Students' Learning Interest in the Pancasila Course During the COVID-19 Pandemic: A Study of Chemical Analysis Students at Polytechnic of AKA Bogor Laksono, Heru Subakti Dwiko; Widijantie, Nunung; Syarkini, Ahmad; Riswati, Nur Indah; Hayat, Moh
Journal of General Education and Humanities Vol. 5 No. 1 (2026): February
Publisher : MASI Mandiri Edukasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58421/gehu.v5i1.1078

Abstract

The COVID-19 pandemic has affected various sectors, including education. During the pandemic, teaching and learning activities have often encountered challenges. One of the major challenges higher education institutions faced was maintaining students’ interest and engagement in learning during the transition to online learning. This study was designed to determine students' learning interest in the Pancasila course in the Chemical Analysis Study Program at the Polytechnic of AKA Bogor. The research was conducted from June to November 2022. The sample for this research consisted of 2nd-semester students in the 2021/2022 academic year. The research method used was descriptive quantitative research. This study uses primary data. To obtain data, the author distributed questionnaires to respondents who had completed Pancasila Courses, and the results were then analysed. Data were analysed using percentage calculations and categorised according to predetermined interpretation criteria. The interest in the Pancasila course among students of the Chemical Analysis Study Program at the Polytechnic of AKA Bogor is 41–60%, placing it in the ‘less’ category. These findings indicate that students’ affective, behavioural, and cognitive engagement in the Pancasila course has not yet reached an optimal level. Therefore, improvements in instructional strategies are necessary to enhance students’ interest in learning and overall learning outcomes.
Co-Authors Arif Muchyidin Asrorudin, Udin Diksy, Yuris Herawati Laksono, Heru Subakti Dwiko Mulyawan, Reza Riswati, Nur Indah Syarkini, Ahmad Tirta, Ardina Purnama Widijantie, Nunung