Article Per Year (5 Year)
p-Index From 2021 - 2026
0.92
P-Index
This Author published in this journals
All Journal Indonesian Journal of Pure and Applied Chemistry JMM (Jurnal Masyarakat Mandiri) Jurnal Bio-Geo Material Dan Energi Jurnal Bakti Nusantara Journal of Chemistry Sciences and Education
Pangestika, Inten
D4 Teknologi Rekayasa Kimia Industri, Politeknik Negeri Medan
Humanities Biochemistry, Genetics & Molecular Biology Chemistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Languange, Linguistic, Communication & Media Medicine & Pharmacology Other

Published : 5 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 5 Documents
Search

 1 
Sosialisasi Penggunaan Workbook sebagai Bahan Ajar Pendukung pada Materi Zat Aditif dan Adiktif dalam Pembelajaran IPA Sani, Sulwiyatul Kamariyah; Pangestika, Inten; Mahmudha, Siti; Pratiwi, Pina Budiarti; Sapitri, Shally
Jurnal Bakti Nusantara Vol. 2 No. 3 (2025): Jurnal Bakti Nusantara
Publisher : Pustaka Media Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63763/jbn.v2i3.91

Abstract

Kegiatan sosialisasi penggunaan workbook sebagai bahan ajar pendukung pada materi zat aditif dan adiktif dalam pembelajaran IPA dilaksanakan di SMPN 28 Mukomuko dengan tujuan untuk meningkatkan pemahaman dan keterlibatan siswa dalam proses belajar. Materi zat aditif dan adiktif merupakan salah satu materi yang topik pengetahuannya terlalu luas sehingga membutuhkan pendekatan pembelajaran yang konstektual dan interaktif. Melalui kegiatan ini, siswa-siswi diperkenalkan pada penggunaan workbook yang disusun secara sistematis seperti materi yang spesifik, soal evaluasi yang menarik, serta kumpulan istilah-istilah sains yang dapat digunakan peserta didik sebagai bahan ajar pendukung. Hasil dari sosialisasi menunjukkan bahwa penggunaan workbook dapat mendorong siswa untuk lebih aktif, mandiri, dan kritis dalam memahami materi. Siswa memberikan respon positif terhadap format dan isi workbook, serta menunjukkan minat yang lebih tinggi dalam mengikuti proses pembelajaran yang dibuktikan dengan adanya peningkatan pemahaman siswa terkait materi zat aditif dan adiktif berdasarkan hasil pre-test dan post-test. Kegiatan ini diharapkan menjadi langkah awal dalam penerapan media pembelajaran yang lebih efektif dan dapat menarik minat belajar peserta didik serta dapat meningkatkan kualitas pembelajaran IPA di sekolah.
Reevaluasi Miskonsepsi Struktur Atom Dan Partikel Subatom Serta Implikasinya Terhadap Pemahaman Ilmiah: Studi Literatur Moneteringtyas, Prisca Caesa; Meidita Kemala Sari; Inten Pangestika; Dini Novi Rohmah; Imas Masriah
Journal of Chemistry Sciences and Education Vol 2 No 01 (2025): Journal of Chemistry Sciences and Education
Publisher : PT. Pubsains Nur Cendekia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69606/jcse.v2i01.229

Abstract

Misconceptions about atomic structure and subatomic particles are a systemic issue in chemistry education, hindering the understanding of advanced concepts and limiting critical thinking. This study aims to identify common misconceptions, explore their root causes, and propose effective corrective strategies. A literature review of 20 peer-reviewed articles was conducted using thematic analysis across three main focuses. Findings reveal that deterministic views of the Bohr model, confusion over technical terms, and misinterpretation of symbolic representations are the most prevalent misconceptions. These stem from unadaptive teaching methods, cognitive limitations, and misleading visuals. Effective remedies include cognitive conflict, dynamic visualizations, and historical-metacognitive approaches to support conceptual change and deepen scientific understanding.
INTERAKSI SENYAWA POTENSIAL TANDAN KOSONG KELAPA SAWIT (TKKS) DENGAN ION LOGAM Pb²⁺: KAJIAN TEORITIK KOMPUTASI Mahmudha, Siti; Nugraha, Fajar; Idris, Muhammad; Pangestika, Inten; Sani, Sulwiyatul Kamariyah
Indonesian Journal of Pure and Applied Chemistry Vol. 9 No. 1 (2026)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/indonesian.v9i1.100734

Abstract

This study investigates the interactions between potential bioactive compounds in oil palm empty fruit bunches (OPEFB) and Pb²⁺ ions using computational methods. The identification of functional compounds was performed using Fourier Transform Infrared spectroscopy, which confirmed the presence of lignocellulosic components, predominantly lignin and cellulose, as the major constituents of OPEFB biomass. Molecular modeling was then performed using the semi-empirical PM3 method to obtain optimized structural parameters, including bond lengths and bond angles, both before and after interaction with Pb²⁺ ions. The calculated interaction energies for lignocellulose, cellulose monomer, and cellulose dimer complexes with Pb²⁺ were –56.22, –69.90, and –52.09 kcal/mol, respectively. The negative interaction energy values indicate spontaneous complex formation and thermodynamic stability. These results demonstrate that the chemical constituents of OPEFB exhibit strong potential as effective biosorbents for Pb²⁺ ions through molecular-level interactions.
Structural and Crystallographic Evolution of Nano-POFA using XRD-Based Crystallite Analysis Masriah, Imas; Lestari, Devi; Sani, Sulwiyatul Kamariyah; Pangestika, Inten; Miswanda, Dikki
Jurnal Bio-Geo Material Dan Energi Vol. 6 No. 2 (2026): Journal of Bio-Geo Material and Energy (BiGME), April 2026
Publisher : PUI BiGME Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/j-bigme.v6i2.49631

Abstract

Palm oil fuel ash (POFA) is one of the main by-products of the palm oil industry, predominantly composed of silica (SiO2) and various other metal oxides. Nano-POFA (P1) was synthesized using a top-down approach via high-energy ball milling process at a rotational speed of 1300 rpm for 1 hour using 4 mm-diameter milling balls. The X-ray diffraction patterns revealed that the dominant crystalline phases were Quartz (SiO2) and Mullite (Al6Si2O13), accompanied by minor phases such as Cristobalite (SiO2), Hematit (Fe2O3), Calcite (CaCO3), CaO, and Al2O3. The XRD analysis results of samples P0 (without ball milling) and P1 (1 hour of ball milling) revealed a significant decrease in peak intensity and peak broadening after 1 hour of the milling process. This phenomenon indicates partial amorphization and crystal fragmentation. The average crystallite size decreased from 92.14 nm in sample P0 to 47.52 nm in sample P1. These results indicate that the high-energy ball milling process induces lattice distortion, structural disorder, and amorphization within the Si-O framework of the POFA. The Williamson-Hall analysis indicated an increase in microstrain from ԑ=3.38 x 10-3 to ԑ=1.227 x 10-2. The structural transformations increase surface defect density and reactivity, signifying nano-POFA’s potential as material heterogenous catalyst for related chemical processes
PELATIHAN PEMBUATAN LILIN AROMATERAPI DALAM PENINGKATAN KREATIVITAS SISWA SMAN 1 KASONGAN Efriyana Oksal; Abdul Hadjranul Fatah; Chuchita Chuchita; Zimon Pereiz; M. Zainuddin Lutfi Fauzi; Nisa Kartika Komara; Inten Pangestika
JMM (Jurnal Masyarakat Mandiri) Vol 9, No 2 (2025): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v9i2.29185

Abstract

Abstrak: Pelatihan pembuatan lilin aromaterapi memiliki peran penting dalam meningkatkan keterampilan praktis dan kreativitas siswa. Kegiatan ini bertujuan untuk meningkatkan kemampuan hardskill siswa dalam pembuatan lilin aromaterapi, sehingga mereka memiliki bekal keterampilan yang dapat diterapkan dalam kehidupan sehari-hari maupun sebagai peluang wirausaha. Metode pelatihan yang digunakan meliputi pemberian materi secara ceramah dan praktik langsung pembuatan lilin aromaterapi. Peserta kegiatan ini adalah 80 siswa/i dari SMAN 1 Kasongan. Diakhir kegiatan pelatihan dilakukan evaluasi dengan pengisian angket oleh peserta untuk menilai pemahaman dan keterampilan yang diperoleh selama pelatihan. Hasil evaluasi menunjukkan bahwa 81,25% peserta memahami metode pembuatan lilin aromaterapi, sedangkan 90% peserta mampu membuat lilin aromaterapi secara mandiri. Dengan demikian, pelatihan ini terbukti efektif dalam meningkatkan keterampilan praktis dan kreativitas siswa.Abstract: The aromatherapy candle-making training plays an important role in enhancing students' practical skills and creativity. This activity aims to enhance students' hard skills in making aromatherapy candles, so they have a set of skills that can be applied in daily life as well as entrepreneurial opportunities. The training methods used include lectures and hands-on practice in making aromatherapy candles. The participants of this activity are 80 students from SMAN 1 Kasongan. At the end of the training activities, an evaluation was conducted with participants filling out a questionnaire to assess the understanding and skills acquired during the training. The evaluation results show that 81.25% of the participants understand the method of making aromatherapy candles, while 90% of the participants are able to make aromatherapy candles independently. Thus, this training has proven effective in enhancing students' practical skills and creativity.
Co-Authors Abdul Hadjranul Fatah Chuchita Chuchita Devi Lestari Dikki Miswanda Dini Novi Rohmah Efriyana Oksal Fajar Nugraha Imas Masriah M. Zainuddin Lutfi Fauzi Meidita Kemala Sari Muhammad Idris Nisa Kartika Komara Pratiwi, Pina Budiarti Prisca Caesa Moneteringtyas Sapitri, Shally Siti Mahmudha Sulwiyatul K Sani Zimon Pereiz