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All Journal JURNAL KIMIA SAINS DAN APLIKASI SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Kartika Kimia Hydrogen: Jurnal Kependidikan Kimia Jurnal Ilmiah Teknik Kimia Jurnal Pengabdian dan Peningkatan Mutu Masyarakat (JANAYU)
Ruspita, Roza
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PREPARASI MATRIKS ALAM SEKRESI KUTU LAK DENGAN ASAM ADIPAT PADA BIOKOMPOSIT SERAT RAMI Prianto, Hestya Arinta Ayu; Ruspita, Roza; Rohaeti, Eli
Hydrogen: Jurnal Kependidikan Kimia Vol 7, No 2 (2019): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v7i2.1759

Abstract

In this research, preparation of natural matrix from modified flea secretion (SKL) by the addition of adipic acid as matrix in biocomposites of ramie fiber have been carried out. This research was initiated by dissolving the chunks of flea secretion using ethanol with ratio 1:2 and heated at temperature 50oC. Flea secretion has modified by the addition of adipic acid in various concentration 5%, 10%, 15%, 20%, and 25%. Viscometry technique with viscometer ostwald was used for characterizing intrinsic viscosityof natural matrix. The optimum value of intrinsic viscosity were reached at concentration 5% of adipic acid that has 77,08 mg/l viscosity. Biocomposites were made by mixing ramie fibers and natural matrix SKL which have been modified by the addition of adipic acid with optimum concentration at 60:40ratio of fibers: matrix. Biocomposites were evaluated for mechanical properties with ASTM D638 type IV standard. Biocomposite sampel was formed specimens and tested with tensile tester. Biocomposite from ramie fibers and natural matrix SKL modified by adipic acid has a tensile strength 15,14 MPa and elastic modulus was 1519,15 MPa.
Pelatihan Pembuatan Virgin Coconut Oil (VCO) Untuk Meningkatkan Nilai Jual Produk Olahan Kelapa Di Desa Curug Goong, Kabupaten Serang, Banten Ruspita, Roza; Agipa, Ade Irmadiki
Jurnal Pengabdian dan Peningkatan Mutu Masyarakat (Janayu) Vol. 4 No. 2 (2023): Jurnal Pengabdian dan Peningkatan Mutu Masyarakat
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/janayu.v4i2.27288

Abstract

Training on making Virgin Coconut Oil (VCO) has been held in Curug Goong Village, Serang Regency, Banten. VCO is pure coconut oil which has many benefits with a relatively easy manufacturing process. Curug Goong Village has potential as a producer of coconuts but has not been used optimally, so this activity aims to train the community to be able to process coconuts into products with a higher selling value. The training on making VCO was attended by 30 participants consisting of coconut farmers and housewives. This training was carried out in 3 stages of activity, these are: the preparation, the implementation and the evaluation stage. This training received a positive response from the people of Curug Goong Village. The evaluation results show 31 participants took part in socialization and training, 26 participants filled out questionnaires. After the training, the people of Curug Goong Village became more familiar with VCO, could differentiate between ordinary coconut oil and VCO, and could practice it at home.­
Adsorben Karbon Aktif dari Kulit Durian untuk Menurunkan Kadar COD pada Limbah Cair Laboratorium Sains Ruspita, Roza; Agipa, Ade Irmadiki; Kurnia, Siti Khoirunisatul
Jurnal Kartika Kimia Vol 7 No 1 (2024): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v7i1.226

Abstract

In this research, the preparation and characterization of durian peel activated carbon with acid and base activators has been carried out, as well as testing its performance in reducing COD levels in Sains Laboratory wastewater. Synthesis of durian peel activated carbon was carried out using the wet impregnation method followed by calcination at a temperature of 700⁰C for 3 hours. Characterization was carried out using FTIR and SEM-EDX. FTIR spectra results show changes in functional groups in activated carbon after activation with absorption at a wave number of 1691 cm-1 which shows a stretched C=C group. SEM micrograph results show that the pore size of activated carbon increases after activation. The activity test was carried out by comparing the reduction in COD levels in laboratory waste using activated carbon adsorbents activated by HCl and NaOH. COD levels in laboratory liquid waste were 29493 mg/L. An HCl concentration of 0.4 M was the optimum concentration to reduce the COD concentration in laboratory waste by 20.69%. These results show that activated carbon from durian peel could reduce COD levels and can be used as an alternative wastewater treatment in laboratory.
Zeolite/Hydrilla verticillata Composite for the Adsorption of Naphthol Blue Black Dye Ruspita, Roza; Muarif, Muhamad Fajar; Agipa, Ade Irmadiki; Yulizar, Ayu Sabila; Silpiana, Mareta; Amalia, Fara
Jurnal Kimia Sains dan Aplikasi Vol 28, No 3 (2025): Volume 28 Issue 3 Year 2025
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jksa.28.3.122-129

Abstract

In this study, a zeolite/Hydrilla verticillata composite adsorbent was prepared and characterized, and its performance was evaluated for the adsorption of Naphtol Blue Black (NBB) dye. Natural zeolite sourced from Bayah, Banten, was used as the base material. The composite was synthesized using the wet impregnation technique. Characterization was conducted using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). FTIR analysis showed absorption bands at 2919 cm-1, 514 cm- 1, and 1014 cm-1, indicating the successful formation of the zeolite/Hydrilla verticillata composite. XRD results revealed that the Bayah natural zeolite contains modernite and heulandite crystal phases, with an average crystallite size of 9.3 nm calculated using the Scherrer equation. SEM images indicated that the zeolite surface was largely covered by Hydrilla verticillata particles. The adsorption experiment showed that the composite adsorbent achieved a 34.07% removal efficiency of NBB dye. The adsorption process followed the Freundlich isotherm model, with an R2 value of 0.9995 and a maximum adsorption capacity of 13.59 mg/g.
Pelatihan media pembelajaran virtual lab menggunakan PhET simulation pada materi konsentrasi di SMAN 3 Kota Serang Agipa, Ade Irmadiki; Shobri, Shobri; Ruspita, Roza; Muarif, Muhamad Fajar; Wirardi, Afnan Ridzka Putri; Nurhaliza, Siti Ilsa; Intansya, Selly
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 9, No 3 (2025): May
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v9i3.28885

Abstract

AbstrakPengabdian kepada Masyarakat (PkM) dilakukan oleh Tim Dosen Fakultas Sains Universitas Islam Negeri Sultan Maulana Hasanuddin Banten di SMAN 3 Kota Serang yang bertujuan untuk menanamkan pemahaman dan konsep praktikum virtual menggunakan PhET simulation pada materi Konsentrasi. Peserta pelatihan ini adalah siswa kelas XII SMAN Kota Serang. Tahapan kegiatan yakni tahap persiapan, tahap pelaksanaan, dan tahap pelaporan. Kegiatan PkM berjalan lancar dan disambut baik oleh mitra. Hal ini dilihat dari hasil survey yang diisi langsung oleh mitra yang terdidi dari enam indikator kepuasan mitra. Berdasarkan survey terdapat 45% siswa/mitra sangat setuju, 51% setuju dan 4% tidak setuju terhadap pernyataan pada 6 indikator kepuasaan mitra, sementara sangat tidak setuju terhadap 6 indikator kepuasan mitra terdapat 0%. Apabila dilihat pada respon mitra setuju dan sangat setuju maka diperoleh jumlah 96%, sehingga dapat disimpulkan bahwa kegiatan ini dikatakan berhasil karena lebih dari dari 90% mitra merespon baik kegiatan ini. Kata Kunci: virtual lab; PhET simulation; konsentrasi. AbstractCommunity Service (PkM) was carried out by the Lecturer Team at the Faculty of Science, Sultan Maulana Hasanuddin State Islamic University, Banten at SMAN 3, Serang City, which aims to instill understanding and concepts of virtual practicum using PhET simulation in Concentration material. Participants in this training are class XII students at SMAN Kota Serang. The activity stages are the preparation stage, implementation stage and reporting stage. PkM activities ran smoothly and were well received by partners. This can be seen from the results of a survey filled out directly by partners consisting of six indicators of partner satisfaction. Based on the survey, 45% of students/partners strongly agreed, 51% agreed and 4% disagreed with the statement on the 6 indicators of partner satisfaction, while 0% strongly disagreed with the 6 indicators of partner satisfaction. If we look at the partner responses agreeing and strongly agreeing, the figure is 96%, so it can be concluded that this activity was said to be successful because more than 90% of partners responded well to this activity. Keywords: virtual lab; PhET simulation; concentration.
Penurunan Kadar COD Pada Limbah Cair Laboratorium Menggunakan Sorben Hydrilla Verticillata Agipa, Ade Irmadiki; Ruspita, Roza; Muarif, Muhamad Fajar; Jannah, Al Baasiqot Shoffia Nur
Jurnal Ilmiah Teknik Kimia Vol. 8 No. 1 (2024): JURNAL ILMIAH TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jitk.v8i1.36188

Abstract

Hydrilla Verticillata adsorbents, HCl-activated Hydrilla Verticillata, and NaOH-activated Hydrilla Verticillata reduce COD levels in laboratory waste. The sorbents were characterized using FTIR and SEM-EDX. FTIR analysis shows a specific absorption at the wave number 1637 cm-1, which indicates the absorption of the carbonyl group in the ester and 1536, 1416, and 1324 cm-1, identical to the absorption of the carboxyl group. SEM results show a hollow and irregular shape in the sorbent. EDX analysis showed that Hydrilla Verticillata, which was activated using HCl and NaOH, experienced a decrease in the percentage of metals. Testing for COD levels in laboratory waste before treatment was 29,492 ppm. Adsorption with various types of sorbents caused a decrease in COD levels to 25,430, 25,424, and 26,441 ppm for the Hydrilla Verticillata, HCl-activated Hydrilla Verticillata and NaOH-activated Hydrilla Verticillata sorbents. Varying concentrations of 0.03, 0.04, 0.05, 0.06, and 0.07 M on HCl-activated Hydrilla Verticillata Sorben showed a reduction in COD levels of 17.24%, 12.07%, 6.90%, 13.79%, and 20.69%.  
Pelatihan pembuatan struktur kimia menggunakan software chemdraw bagi siswa SMA Daar El-Qolam 2 kabupaten Tangerang Ruspita, Roza; Agipa, Ade Irmadiki; Nurhaliza, Siti Ilsa; Intansya, Selly
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 8, No 2 (2024): June
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v8i2.22885

Abstract

AbstrakPelatihan pembuatan struktur kimia dengan menggunakan aplikasi ChemDraw telah dilaksanakan di SMA Daar El Qolam 2 Kabupaten Tangerang. ChemDraw merupakan suatu aplikasi dalam ChemOffice yang digunakan untuk membuat struktur Kimia. Pemanfaatan media pembelajaran ChemDraw dapat memudahkan dalam membuat dan memahami struktur kimia 2D maupun 3D. Kegiatan pelatihan pembuatan struktur kimia dengan ChemDraw ini diikuti oleh 24 peserta didik Kelas XI MIPA SMA Daar El Qolam 2 Kabupaten Tangerang. Pelatihan ini dilaksanakan dengan tahapan persiapan dan sosialisasi, pelaksanaan, serta evaluasi dan pelaporan. Hasil kegiatan menunjukkan bahwa sebanyak 24 peserta mengikuti dan pelatihan dan sebanyak 24 peserta atau 100% peserta mengisi kuesioner yang diberikan. Setelah dilakukan pelatihan, para peserta yang terdiri dari peserta didik dapat mengoperasikan ChemDraw, membuat struktur kimia dengan ChemDraw dan Chem3D, serta memodelkanya dengan media molymod. Setelah mengikuti pelatihan, sebanyak 37,50% peserta sangat setuju dengan materi pelatihan yang diberikan, dan 62,50% menyatakan setuju dengan materi yang diberikan. Peserta pelatihan menilai bahwa kegiatan ini bermanfaat dan diharapkan dapat diadakan secara berkelanjutan agar semakin memahami langkah-langkah pembuatan struktur kimia dengan ChemDraw. Kata kunci: chemdraw; pelatihan; sekolah; struktur kimia. AbstractTraining on making chemical structures using ChemDraw application has been carried out at Daar El Qolam 2 High School, Tangerang Regency. ChemDraw is an application in ChemOffice that is used to create chemical structures. Utilizing the ChemDraw learning media makes it easier to create and understand 2D and 3D chemical structures compared to manually. The training activity for making chemical structures using ChemDraw was attended by 24 students from Class XI MIPA SMA Daar El Qolam 2, Tangerang Regency. This training was carried out in stages of preparation and socialization, implementation, as well as evaluation and reporting. The results of the activity showed that as many as 24 participants took part in the training and as many as 24 participants or 100% of participants filled in the questionnaires given. After training, the participants, consisting of students, were able to operate ChemDraw, create chemical structures with ChemDraw and Chem3D, and model them using molymod media. After attending the training, 37.50% of participants strongly agreed with the training material provided, and 62.50% agreed. The training participants considered that this activity was useful and hoped that it could be held on an ongoing basis to better understand the steps for making chemical structures with ChemDraw. Keywords: chemdraw; training; school; chemical structure
Co-Authors Agipa, Ade Irmadiki Amalia, Fara Eli Rohaeti Intansya, Selly Jannah, Al Baasiqot Shoffia Nur Kurnia, Siti Khoirunisatul Muarif, Muhamad Fajar Nurhaliza, Siti Ilsa Prianto, Hestya Arinta Ayu Shobri, Shobri Silpiana, Mareta Wirardi, Afnan Ridzka Putri Yulizar, Ayu Sabila