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All Journal Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Pendidikan Islam Gunung Djati Conference Series
Risa Rahmawati Sunarya
Department Of Chemistry Education, UIN Sunan Gunung Djati Bandung
Religion Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Other

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INTERNALIZING ISLAMIC VALUES IN ELECTROCHEMISTRY LEARNING Cucu Zenab Subarkah; Risa Rahmawati Sg; Ajeng Dalli
Jurnal Pendidikan Islam Vol 2, No 2 (2016): JURNAL PENDIDIKAN ISLAM
Publisher : The Faculty of Tarbiyah and Teacher Training associated with PSPII

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/jpi.v2i2.790

Abstract

The purpose of this paper is to describe a potential way of integrating the knowledge of electrochemistry with a story in the Al-Quran particularly in the sura of Al-Kahfi, verse 83-96. The story tells about an implicit understanding of the concept of electro chemistry. Having the story in the learning of electrochemistry is aimed to internalizing the spirit of Islam in the learning of electro chemistry. Using a classroom action research, this study involved 95 students who are taking the course of Basic Chemistry 2. This study used three instruments, namely: observation sheet of students activity, observation sheet of students attitute, and self-assessment questionnaire. Based on the data, the study found that students were considerably active in each stage of the learning process with the average of activitiy is 78% (good). With regards to attitude, only aspect of responsibility that was not well appeared while the aspects of religious curiosity, cooperative, and communication relatively presented 
Preparation of Polyaniline Emeraldine Salt for Conducting-Polymer-Activated Counter Electrode in Dye Sensitized Solar Cell (DSSC) using Rapid-Mixing Polymerization at Various Temperature Auliya Nur Amalina; Veinardi Suendo; Muhammad Reza; Phutri Milana; Risa Rahmawati Sunarya; Damar Rastri Adhika; Viny Veronika Tanuwijaya
Bulletin of Chemical Reaction Engineering & Catalysis 2019: BCREC Volume 14 Issue 3 Year 2019 (December 2019)
Publisher : Department of Chemical Engineering - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (761.085 KB) | DOI: 10.9767/bcrec.14.3.3854.521-528

Abstract

Polyaniline Emeraldine Salt (PANI ES) as a conductive polymer has been used as a Pt-free counter electrode materials in DSSC. In this study, polymerization temperature was varied at relatively high temperature from 308 to 348 K with respect to the standard low polymerization temperature at 273 K. The synthesis held in varied high-temperature to study the effect of synthesis condition resulted to the performance as counter electrode in DSSC. The effect of high-temperature synthesis condition gives interesting results, the FTIR-ATR spectra show the presence of vibrational modes of phenazine structure obtained at high polymerization temperature, indicate the changing in the chain geometry. Raman Spectroscopy shows the decrease of the I1194/I1623 intensity ratio that can be interpreted that the degree-of-freedom of C-H bond bending mode decreases in the benzenoid ring, while the stretching mode degree-of-freedom along the chain is preserved or increased. The electrical conductivity profile has changed from metal-like at low-temperature into a semiconductor-like profile at high-temperature. Scanning Electron Microscope images reveals that a change in the morphology of PANI ES with temperature. At low-temperature (273 K) the morphology has a globular shape, while at high-temperature it tends to form nanorod structure. DSSC device with highest efficiency is attained for PANI ES polymerized at 273 K (1.91%) due to its high conductivity. The lowest efficiency is observed in device using PANI ES synthesized at 328 K (1.15%) due to its low conductivity due to the formation of phenazine structure. 
DEVELOPMENT OF SCIENTIFIC PERFORMANCE ASSESSMENT INSTRUMENT IN THE PRACTICUM OF ZnO LEVEL ANALYSIS IN LOOSE POWDER Ega Hidayani; Ida Farida; Risa Rahmawati Sunarya
Gunung Djati Conference Series Vol. 2 (2021): Seminar Nasional Tadris Kimiya 2020
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (703.731 KB)

Abstract

One of the assessment instruments that can be used to assess the achievement of competence and process skills in practicum activities is performance assessment instrument. The instrument for assessing scientific performance in the practicum of ZnO level analysis in loose powder is needed. This study aimed to describe the appearance of the scientific performance assessment instrument in the form of practicum worksheets and student performance assessment sheets, and to analyze the results of the validation test of the two instruments. This research used the Design Based Research (DBR) method with the stages of analysis and product design development, starting from the analysis of relevant journals, making worksheets and performance assessment sheets, to validation tests for lecturers who are experts in chemistry and learning media. The worksheets consist of discourse, questions before and after conducting the experiment, analyzing the experimental data, concluding the experimental data, and making a report on the results of the experiment. The performance assessment sheets consist of performance assessment aspects, criteria, assessment rubric, and student identity. Based on the data from the validation test results to expert lecturers, valid worksheets and performance assessment were obtained with rcount values of 0.838 and 0.846 respectively.
Co-Authors Ajeng Dalli Auliya Nur Amalina Cucu Zenab Subarkah Damar Rastri Adhika Ega Hidayani Ida Farida Muhammad Reza Phutri Milana Veinardi Suendo Viny Veronika Tanuwijaya