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All Journal BERKALA SAINSTEK The Journal of Pure and Applied Chemistry Research Edufisika: Jurnal Pendidikan Fisika Chemistry Indonesian Journal of Chemical Research CHEESA: Chemical Engineering Research Articles Barometer Jurnal Studi Guru dan Pembelajaran Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Jurnal Pengabdian kepada Masyarakat Nusantara Jurnal Abdimas Berdaya : Jurnal Pembelajaran, Pemberdayaan dan Pengabdian Masyarakat Hydrogen: Jurnal Kependidikan Kimia Jurnal Penelitian Sains dan Pendidikan (JPSP) PSEJ (Pancasakti Science Education Journal) Journal of Peat Science and Innovation (JPSI) Jurnal Sains Materi Indonesia Taawun: Jurnal Pengabdian kepada Masyarakat
Indri Susanti
Pendidikan IPA, Fakultas Keguruan Dan Ilmu Pendidikan, Universitas Islam Lamongan
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Potential of Easily Prepared Low-Cost Natural Clay for the Cationic Adsorption of Methylene Blue Dye Susanti, Indri; Rosdiana, Silvi Rosiva; Sajidah, Happy Bunga Nasyirahul; Sholeha, Novia Amalia; Iqbal, Rendy Muhamad
The Journal of Pure and Applied Chemistry Research Vol. 13 No. 3 (2024): Edition September-December 2024
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2024.013.03.7900

Abstract

The research aims to synthesize and characterized the properties of Natural Clay as adsorbent of cationic methylene blue which was easly prepared low-cost to be natural clay powder. Prepared natural clay then characterized by XRD, FTIR, and XRF. The methylene blue adsorption was tested using batch method with further analysis by spectrophotometry UV-Vis. The adsorption data then be analyze kinetic perform. The result showed that methylene blue adsorption capacity of natural clay is up to 72.51% While the kinetic study of methylene blue adsorption using natural clay showed that methylene blue adsorption process was suitable with kinetic model of Pseudo Second Order.
Pengaruh Model Pembelajaran Pirposal Terhadap Science Attitude Siswa Sekolah Menengah Pertama Pada Pembelajaran IPA Topik Asam Basa Irnananda, Lenvi; Septaria, Kiki; Susanti, Indri
Jurnal Penelitian Sains dan Pendidikan (JPSP) Vol 4 No 2 (2024)
Publisher : IAIN Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23971/jpsp.v4i2.7560

Abstract

Pembelajaran pirsopal merupakan pendekatan yang mengintegrasikan pembelajaran berbasis proyek, simulasi, dan diskusi kelompok untuk meningkatkan pemahaman konsep siswa serta partisipasi mereka dalam pembelajaran sains. Menerapkan metode pembelajaran Pirposal membantu siswa mengintegrasikan pengetahuan dan keterampilan disiplin mereka, serta mendukung pembelajaran Pirposal di seluruh proyek akademik mereka. Tujuan penelitian ini adalah untuk mengetahui pengaruh science attitude siswa setelah melakukan pembelajaran menggunakan model pirposal. Penelitian ini menggunakan desain penelitian one group pre-test dan post-test, di mana jenis penelitiannya adalah kuantitatif dengan penggunaan Science Attitude yang harus konsisten. Penelitian ini terdiri dari pelaksanaan tes awal (pre-test) sebelum diberikan perlakuan, perlakuan, dan dilanjutkan dengan tes akhir (post-test). Hasil penelitian ini menunjukkan bahwa pelaksanaan pembelajaran menggunakan model pembelajaran Pirposal dalam RPP menunjukkan hasil yang sangat baik dengan rata-rata keterlaksanaan sebesar 88,75, termasuk dalam kategori sangat tinggi. Uji hipotesis menunjukkan bahwa pembelajaran dengan model Pirposal memiliki pengaruh yang signifikan terhadap science attitude siswa terhadap asam dan basa. Nilai signifikansi uji berpasangan sampel t-test untuk tes kognitif dan tes science attitude sebesar 0,000 menunjukkan adanya pengaruh yang besar. Peningkatan science attitude juga tampak signifikan, yaitu peningkatan nilai rata-rata masing-masing sebesar 0,63, yang termasuk dalam kategori sedang. Penelitian selanjutnya diharapkan dapat mengembangkan dan melakukan korelasi antara science attitude dan hasil belajar siswa.
Surface Modification of Hematite using Stearic Acid as Hydrophobic Inorganic Pigment Materials Iqbal, Rendy Muhamad; Agnestisia, Retno; Damsyik, Akhmad; Sinaga, Tiara Cristy Agatha; Khaerudini, Deni Shidqi; Wulandari, Ika Octavia; Susanti, Indri; Putra, Riandy; F. Adany
Jurnal Sains Materi Indonesia Vol. 26 No. 2 (2025): Jurnal Sains dan Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jsmi.2025.8982

Abstract

The inorganic pigment is a material that determines the color of a paint that can be used as a coating material. Until now, the basic material for red pigment, namely hematite, has been imported to meet domestic needs. This study aims to develop a hematite-based inorganic pigment material from the mill-scale waste of PT Krakatau Steel by modifying the surface to be hydrophobic, making the pigmenting material resistant to acid attack and preventing peeling and corrosion of the material. The surface modification of hematite is carried out by reacting it with stearic acid into ethanol as a solvent. Hematite was immersed in a stearic acid solution with various concentrations of 2, 4, 6, and 8% for 6 hours; it was then separated by filtration and followed by the drying process. The hematite-stearic was characterized by X-ray diffraction (XRD), Fourier-transform infrared (FTIR), scanning electron microscope (SEM), and water contact angle (WCA). The results show that the grafting process successfully changed the properties of hematite to hydrophobic. It is also supported by the FTIR spectrum due to the presence of molecular vibration of C-H, C=O, C-O, and Fe-O. Then, the higher contact angle is 150.474° for the stearic acid concentration of 6%.
Pendampingan Belajar selama Pandemi Covid-19 di Desa Sawo Kecamatan Dukun Kabupaten Gresik Indri Susanti; Kiki Septaria; Nurlayli Santi Aprilia; Arofatun Nisa’u Shonia
TAAWUN Vol. 2 No. 01 (2022): TA'AWUN FEBRUARY 2022
Publisher : Pusat Penelitian Pengabdian Pada Masyarakat Sekolah Tinggi Ilmu Tarbiyah Al-Fattah Siman Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37850/taawun.v2i01.232

Abstract

Pandemi covid-19 berdampak pada berbagai bidang di Indonesia termasuk bidang pendidikan, yaitu dengan perubahan pembelajaran tatap muka menjadi pembelajaran daring/online. Terdapat beberapa kendala dalam pembelajaran daring/online di rumah yang dirasakan oleh siswa dan orang tua di Desa Sawo Kecamatan Dukun Kabupaten Gresik. Oleh karena itu, kegiatan pendampingan belajar sebagai bentuk pengabdian kepada masyarakat ini dilakukan untuk mengatasi masalah pembelajaran daring/online, membantu siswa yang tidak memiliki sarana dan prasarana yang memadai, dan membantu siswa dalam meningkatkan motivasi belajar dan prestasi akademik. Kegiatan pendampingan belajar dilakukan melalui 3 tahapan yaitu tahap persiapan, pelaksanaan dan evaluasi. Kegiatan pendampingan belajar dilaksanakan dengan menerapkan protokol kesehatan. Hasil pengabdian melalui kegiatan pendampingan belajar ini adalah permasalahan pembelajaran daring/online bagi siswa dan orang tua di Desa Sawo dapat teratasi, motivasi belajar siswa meningkat dan prestasi akademik siswa juga mengalami peningkatan.
The Effectiveness of Contextual Learning with the Small Group Discussion Method to Improve Students Critical Thinking Skills Noverly Indahyana; Indri Susanti; Khoiro Mahbubah
Jurnal Studi Guru dan Pembelajaran Vol. 7 No. 2 (2024): Mei - Agustus 2024
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/jsgp.7.2.2024.4338

Abstract

Learning in schools generally still uses conventional learning models or methods that focus on the teacher. This causes students to be less trained in critical thinking. This study aims to determine the effectiveness of implementing contextual learning with small group discussion methods to improve students critical thinking skills on environmental pollution material. The study was carried out on class X vocational students in Lamongan. This research began by conducting observations and interviews at one of the vocational schools in Lamongan Regency. The findings from the observations and interviews indicated that students have poor critical thinking skills, as traditional teaching models and methods are still being utilizedThis study employed a pre-experimental design featuring a one-group pre-test and post-test approach, with the sample selected through purposive sampling. The data in this research was obtained using the results of the pre-test and post-test given to students. A pre-test is given to students before the learning treatment is carried out using a contextual model with a small group discussion method. Post tests were given to students after learning treatment using a contextual model with small group discussion methods. The research result were analyzed using paired samples t-test and N-gain test. The results obtained from the paired sample t-test were 0.000 which showed a significant effect between learning using the contextual model with the small group discussion method to improve students critical thinking skills and was strengthened by the N-gain test for Office Management class 1 of 0.75 and the value of N-the gain of Office Management class 2 is 0.74, the N-gain value is both in the high category. So the application of contextual learning with small group discussion methods can improve students critical thinking skills.
EKSPLORASI ZAT WARNA ALAMI DARI TUMBUHAN LOKAL MENGGUNAKAN TEKNIK DECOCTION DAN APLIKASINYA PADA KAIN KATUN Setyaningsih, Sri; Indri Susanti; Siska Ayu Wulandari; Binar Ayu Dewanti
Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Vol. 7 No. 2 (2025): Literasi Artikel Penelitian Kimia
Publisher : Program Studi Kimia, Fakultas MIPA, Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/jc.v7i2.6109

Abstract

Industri tekstil merupakan salah satu penyumbang utama pencemaran lingkungan, terutama akibat penggunaan zat warna sintetis yang bersifat toksik dan tidak dapat terurai secara hayati. Sebagai alternatif, zat warna alami yang berasal dari bahan nabati menawarkan solusi yang lebih berkelanjutan dan ramah lingkungan. Penelitian ini bertujuan untuk mengevaluasi potensi warna dari delapan sumber tanaman lokal, yaitu Tectona grandis (daun jati), Psidium guajava (daun jambu biji), Mangifera indica (daun mangga), Carica papaya (daun pepaya), Vitex pinnata (kulit kayu mauni), Cocos nucifera (sabut kelapa), dan Morinda citrifolia (akar mengkudu) saat diaplikasikan pada kain katun tanpa penggunaan mordant. Penelitian ini menggunakan metode deskriptif kualitatif melalui eksperimen laboratorium yang melibatkan tahapan persiapan, ekstraksi menggunakan metode dekoksi, dan aplikasi langsung zat warna pada kain katun. Observasi dilakukan terhadap karakteristik visual warna yang dihasilkan serta hubungannya dengan kandungan fitokimia masing-masing bahan tumbuhan, seperti flavonoid, tanin, antosianin, dan senyawa fenolik. Hasil penelitian menunjukkan intensitas dan variasi warna yang beragam pada kain katun, yang mengindikasikan potensi beberapa spesies tumbuhan untuk dikembangkan sebagai pewarna tekstil alami. Studi ini memberikan kontribusi terhadap pengembangan awal teknologi pewarnaan berbasis hayati lokal yang selaras dengan prinsip tekstil ramah lingkungan dan kimia hijau.
Variation of Polymer Matrix On the Quality of Bioplastic from Cassava Peel Waste from Tapai Industry in Bogor Sholeha, Novia Amalia; Muthmainah, Nada Ghaida; Robyano, Rifky Ardiansyah; Sophia, Halida; Susanti, Indri; Ramadhania, Nurina Rizka
Hydrogen: Jurnal Kependidikan Kimia Vol. 13 No. 4 (2025): August 2025
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v13i4.16975

Abstract

Plastic waste originating from commercial sources presents significant environmental challenges, leading to the creation of biodegradable alternatives derived from renewable materials. This research investigates the feasibility of utilizing cassava peel starch (CPS), an agro-industrial by-product, as a foundational material for bioplastic manufacturing. To overcome the limitations of pure starch, such as brittleness and insufficient water resistance, a bioplastic was produced through solvent casting by combining a blend of chitosan, a natural biopolymer, and polyvinyl alcohol (PVA), a synthetic polymer, to improve its mechanical and physical properties. CPS was extracted and then analyzed for yield, moisture, and starch content. The interactions among components in bioplastics were examined utilizing FTIR and SEM techniques. FTIR analysis revealed physical interactions devoid of chemical bonding, whereas SEM demonstrated heterogeneous surfaces characterized by cracks. Among the five formulations, the formulation containing 5.0 g of PVA and 1.5 g of chitosan (F5) exhibited optimal performance, characterized by a thickness of 0.25 mm, a tensile strength of 11.95%, an elongation of 17.83%, and a biodegradation rate of 49.16% after 12 days.  The material met JIS Z 1707:1997 standards for mechanical properties, although it did not fully comply with biodegradation requirements. The novelty of this research presents to the valorization of cassava peel starch as local-agro industrial waste into bioplastics enhanced with chitosan and PVA, revealing a cost-effective, renewable alternative that meets key mechanical standards while advancing sustainable plastic innovation. The results indicate that CPS-based bioplastics, when combined with suitable polymer matrices, offer a feasible and sustainable substitute for conventional plastics.
Co-Authors ., BINAR AYU DEWANTI Agus Santoso Aisyurrahman, Dimas Fahmi Alfanaar, Rokiy Aprilia, Nurlaily Santi Arofatun Nisa’u Shonia Damsyik, Akhmad Deni Shidqi Khaerudini Elda Alyatikah Erwin Prasetya Toepak F. Adany Halida Sophia Handayani, Sutri Happy Bunga Nasyirahul Sajidah Imroatul Hamidah Iqbal, Rendy Muhamad Iqbal, Rendy Muhamad Irnananda, Lenvi KIKI SEPTARIA Mahbubah, Khoiro Miranti Maya Sylvani Muthmainah, Nada Ghaida Noverly Indahyana Nurlayli Santi Aprilia Pradana, Tri Agusta Putri, Khusnul Fatimah Rachman, Rahadian Abdul Rahadian Abdul Rachman Ramadhania, Nurina Rizka Rendy Muhamad Iqbal Retno Agnestisia Riaa Safitri Riandy Putra Robyano, Rifky Ardiansyah ROSIVA ROSDIANA, SILVI Setiawan, Anhar Sholeha, Novia Amalia Sinaga, Tiara Cristy Agatha Siska Ayu Wulandari Siska Ayu Wulandari, Siska Ayu Siti Unvaresi Misonia Beladona Syamsiar, Syamsiar Tri Agusta Pradana Wulandari, Ika Octavia