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All Journal Jurnal Fisika Unand Jurnal Kimia Riset JURNAL MUQODDIMAH : Jurnal Ilmu Sosial, Politik dan Hummaniora Walisongo Journal of Chemistry Journal of Appropriate Technology for Community Services Jurnal Agrotropika Jurnal Abdimas Kartika Wijayakusuma Jurnal Kaharati Journal of Peat Science and Innovation (JPSI) Bohr: Jurnal Cendekia Kimia NAWASENA: Journal of Community Service
Siti Unvaresi Misonia Beladona
Universitas Palangka Raya
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Other

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Sintesis dan Karakterisasi Silika Sekam Padi sebagai Material Self-Cleaning Elsandika, Gabriela; Dirgantara, Made; Beladona, Siti Unvaresi Misonia; Pasaribu, Marvin Horale
Jurnal Fisika Unand Vol 14 No 2 (2025)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.14.2.124-130.2025

Abstract

This study aimed to valorize rice husk waste by extracting silica and developing a self-cleaning surface coating. Silica was successfully extracted from rice husk ash via an alkaline reflux method followed by acid precipitation. The extracted silica exhibited an amorphous structure with a high purity of 96.7%, as confirmed by X-ray diffraction (XRD) and X-ray fluorescence (XRF) analysis. Subsequent modification with Trimethylchlorosilane (TMCS) significantly enhanced the hydrophobicity of the silica, resulting in a contact angle of 99.84° with water. The synthesized silica-based material demonstrates promising potential as a self-cleaning surface coating, offering improved durability and ease of maintenance.
Pengaruh Pemberian Porasi Janjang Kosong dan Dolomit terhadap Pertumbuhan dan Hasil Tanaman Bayam Merah Salampak, Salampak; Sustiyah, Sustiyah; Anwar, Moch; Beladona, Siti Unvaresi Misonia; Hartoko, Galih; Wahyuningtyas, Meylinda Dwi
JURNAL AGROTROPIKA Vol. 23 No. 2 (2024): Jurnal Agrotropika Vol 23 No 2, Oktober 2024
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v23i2.9190

Abstract

The utilization of peat soil as a planting medium is still faced with several problems, especially in terms of the chemical characteristics of peat soil. Therefore, there is a need for treatment to improve these problems, one of which is by using the poration of palm oil empty fruit bunches and dolomite. This research aims to determine the effect of providing a technology package of empty fruit bunch and dolomite poration doses on the growth and yield of red spinach plants. The research was carried out at the Greenhouse Jalan G. Obos 24, for 3 months (September-November 2023). The research was carried out using a survey method and experimental tests in polybags, using the RAL method with 9 treatment technology packages, namely: 1) soil without treatment (control), 2) Soil + empty fruit bunches poration 2.5 tons ha-1 + dolomite 2 tons ha-1, 3) Soil + 2.5 tons ha-1 of empty fruit bunches poration + 4 tons of ha-1 dolomite, 4) Soil + 5 tons of ha-1 of empty fruit bunches poration, 5) Soil + 5 tons ha-1 of empty fruit bunches poration + 2 tons ha-1 dolomite, 6) Soil + empty fruit bunches poration 5 tons ha-1 + dolomite 4 tons ha-1, 7) Soil + empty fruit bunches poration 7.5 tons ha-1, 8) Soil + empty fruit bunches poration 7.5 tons ha-1 + dolomite 2 tons ha-1 , 9) Soil + empty fruit bunches poration 7.5 tons ha-1 + dolomite 4 tons ha-1. The variables observed included plant height, stem diameter, root length, plant wet weight, and plant dry weight. Providing a package of peat soil + 7.5 tons ha-1 of empty fruit bunches poration + 4 tons of ha-1 dolomite (T(8)) can increase the growth of red spinach plants which include plant height (4.46 – 37.36 cm), stem diameter (4.48 – 7.06 cm), the wet weight of the plant is 26.10 g/polybag. Keywords : poration, dolomite, plant height, palm oil empty fruit bunch 
Identifikasi Dinamika Kelompok Usaha Pengrajin Purun Nusa Sehati di Desa Tumbang Nusa Kabupaten Pulang Pisau Kalimantan Tengah Rafsanjani, Muhamad Arief; Adiwijaya, Saputra; Misonia B, Siti Unvaresi; Kumalasari, Meiyanti Ratna
Jurnal Ilmiah Muqoddimah: Jurnal Ilmu Sosial, Politik dan Hummaniora Vol 8, No 4 (2024): November 2024
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jim.v8i4.2024.1936-1941

Abstract

UMKM saat ini mengalami tantangan tersendiri dalam pengembangan unit usahanya, terlebih yang berbasis pada unit usaha bersama. Salah satu UMKM yang mengalami banya dinamika adalah TK – PPEG (Tim Kerja Perlindungan dan Pengelolaan Ekosistem Gambut) Nusa Sehati di Desa Tumbang Nusa, Kabupaten Pulang Pisau, Kalimantan Tengah. Kelompok Nusa Sehati merupakan kelompok usaha bersama berbasis pada produk kerajinan purun. Kajian pada artikel ini, dengan menggunakan Metode Penelitian Kualitatif, mencoba untuk melihat dinamika tantangan persoalan kelompok usaha bersama tersebut. Terdapat tiga persoalan dari kelompok usaha ini, pertama terkait proses produksi dari kerajinan purun yang masih menggunakan matahari. Kedua monotonnya hasil produk terutama dalam pewarnaan, dan terakhir terkait pemasaran dan promosi produk yang dihasilkan.Kata kunci: Digital Marketing, Purun, Produksi,
Rice Husk Ash: A Promising Heavy Metal Adsorbent For Wastewater Treatment Kumalasari, Meiyanti Ratna; Beladona, Siti Unvaresi Misonia; Gracia, Amanda Natania; Sugiyani, Tina; Wulandari, Oktavia Rahmi; Imelya, Marsya; Syaima, Husna; Hanif, Qonita Awliya
Walisongo Journal of Chemistry Vol. 7 No. 1 (2024): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology UIN Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v7i1.18852

Abstract

The primary polluter of the environment is liquid waste. Silica is one substance that can be utilized to minimize water pollution. Silica can be produced from agricultural biomass waste, such as rice husk ash. This study investigated the preparation of rice husk ash and the optimal synthesis method for producing bio-silica. A literature review of studies on rice husk ash, heavy metals, and adsorbents was conducted. The findings indicated that boiling rice husk at 800°C and washing with HCl produced high-purity silica. XRD (X-ray diffraction), FT-IR (Fourier transform infrared) spectrophotometers, and ED-XRF (Energy Dispersive X-ray fluorescence) were employed to characterize the rice husk ash. The precipitation, sol-gel, acidification, and hydrothermal methods were compared for bio-silica synthesis. The synthesized bio-silica can be used as a heavy metal absorbent for various metal ions, including Pb2+, Zn2+, Mn2+, Cu2+, As3+, As5+, and Cd2+.
Sifat Perovskit sebagai Material Elektroda untuk Baterai Lithium-Ion (LIB): Review Beladona, Siti Unvaresi Misonia; Purwanto, Ferry; Jumiati; Simanjuntak, Elfrida Roulina; Simarmata, Sari Namarito; Kumalasari, Meiyanti Ratna; Iqbal, Rendy Muhamad
Bohr: Jurnal Cendekia Kimia Vol 1 No 01 (2022): Bohr: Jurnal Cendekia Kimia Vol 01 No 01
Publisher : Program Studi Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/bohr.v1i01.5572

Abstract

Baterai Lithium-ion (baterai Li-ion or LIB) merupakan baterai isi ulang yang telah menarik banyak perhatian sebagai sumber daya yang sangat menjanjikan karena memiliki kepadatan daya dan energi yang sangat baik, sehingga memiliki kemampuan pengisian daya yang stabil dan berbiaya rendah. Baterai Li-ion banyak digunakan pada kendaraan listrik, perangkat elektronik portabel, industri militer, dan lain sebagainya. Hingga saat ini, penelitian untuk mengembangkan teknologi baterai Li-ion terus dilakukan, yang berfokus pada kepadatan energi, daya tahan, biaya, dan keselamatan intrinsik. Bahan elektroda dengan konduktivitas ionik dan elektronik yang tinggi diperlukan untuk baterai Li-ion isi ulang dengan kepadatan energi yang besar. Salah satu material yang dapat diaplikasikan sebagai bahan elektroda adalah perovskit. Dalam beberapa tahun terakhir, bahan perovskit (rumus umum ABO3) telah menerima banyak perhatian untuk kristal kubik sederhana dan sifat fisik beragam yang memungkinkan penggunaannya dalam berbagai teknologi. Sifat fisik dan kimia yang sangat baik dari perovskit membuatnya cocok untuk berbagai aplikasi, khususnya sebagai material untuk baterai Li-ion.
Peningkatan Produktivitas Hasil Pertanian Melalui Pelatihan Pembuatan Pupuk Organik Cair dari Tanaman Purun Kalalinggi, Septaria Yolan; Kumalasari, Meiyanti Ratna; Beladona, Siti Unvaresi Misonia; Putra, Riandy; Pratika, Remi Ayu
Journal of Appropriate Technology for Community Services Vol. 6 No. 1 (2025)
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jattec.vol6.iss1.art9

Abstract

The influence of the utilization of chemical fertilizers on agricultural land has a negative impact on the environment since it can reduce soil fertility and pollute air and water. Currently, the use of chemical fertilizers is starting to be reduced. The development of organic fertilizers derived from natural ingredients began to be developed, where the advantages of using organic fertilizers are easy to obtain, environmentally friendly, and low production costs. The Community Empowerment Assistance Lecturer Program was carried out in Tuwung Village, Pulang Pisau Regency, Central Kalimantan. This program is carried out in order to empower farmers as an effort to increase the productivity of their agricultural products. The aims of this program are; 1). Provide training to farmers related to how to make liquid organic fertilizer from purun plants; and 2).  Determine the effectiveness of the implementation of training on increasing farmers' knowledge in making liquid organic fertilizer. Training activities were presented to the introduction of purun plants and their potential as materials for making liquid organic fertilizer. Next, the activity continued with a demonstration of how to make liquid organic fertilizer from purun plants. Finally, the farmers were asked to practice directly making liquid organic fertilizer. The results of this training had an positive response on the knowledge and skills of farmers in Tuwung Village, Pulang Pisau Regency, in making liquid organic fertilizer. In addition, this activity is considered effective and efficient based on the results of the evaluation in accordance with the target achievement. 
Co-Authors Adiwijaya, Saputra Al-Hadi, Risfa Aliya Alfanaar, Rokiy Artha Karunia Gresiana Siregar Elda Alyatikah Elfrida Roulina Simanjuntak Elsandika, Gabriela Fakhrotun Nisa Ferry Purwanto Gracia, Amanda Natania Hakim, Muh. Supwatul Hartoko, Galih Husna Syaima Imelya, Marsya Indri Susanti Iqbal, Rendy Muhamad Iqbal, Rendy Muhamad Isaura, Anasthasya Jumiati Jumiati Kalalinggi, Septaria Yolan Made Dirgantara Marvin Horale Pasaribu Midun Efendi Patar Sihombing Miranti Maya Sylvani Moch Anwar Nababan, Jesika Pramudita, Dimas Purwanto, Ferry Qonita Awliya Hanif Rafsanjani, Muhamad Arief Rafsanjani, Muhammad Arief Ratnalisti, Putri Remi Ayu Pratika Riaa Safitri Riandy Putra Salampak, Salampak Sari Namarito Simarmata Sari, Meiyanti Ratna Kumala Simanjuntak, Elfrida Roulina Simarmata, Sari Namarito Simbolon, Wenika Sipayung, Ronald Regen Sugiyani, Tina Sustiyah Sustiyah Sylvani, Miranti Maya Tesalonika, Lidya Tety Wahyuningsih Manurung Wahyu Nugroho Wahyuningtyas, Meylinda Dwi Wulandari, Oktavia Rahmi Zimon Pereiz