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All Journal IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Jurnal Penelitian Sains Communications in Science and Technology IJEMS (Indonesian Journal of Environmental Management and Sustainability) MAT-EDUKASIA Jurnal Pengabdian Masyarakat: Humanity and Medicine Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat Ahsana: Jurnal Penelitian dan Pengabdian kepada Masyarakat Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Pelita Sriwijaya
Nova Yuliasari
Universitas Sriwijaya
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Education Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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EKSPERIMENTASI MODEL PEMBELAJARAN KOOPERATIF TIPE TEAMS GAME TOURNAMENT TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS DITINJAU DARI KEMAMPUAN AWAL Yuliasari, Nova
MAT-EDUKASIA Vol 3, No 2 (2018): Mat-Edukasia-Oktober 2018
Publisher : STKIP YPM Bangko

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.0907/medusa.v3i2.296

Abstract

This study aims to describe mathematical problem solving abilities in terms of the initial ability to use cooperative learning models Teams Game Tournament type is better than learning. Quantitative research with experimental methods. The research design is a 2 x 3 factorial design with a population of 8 classes. The sampling technique uses Simple Random Sampling, grouped based on initial abilities. The technique of collecting data through tests in the form of essay questions. Based on the results of testing the data analysis prerequisites, it is known that the data are normally distributed and homogeneous variance, the data analysis techniques used are t-test and two-way anova. From the data analysis it can be concluded that students who are taught with the cooperative TGT model as a whole and students with early abilities are better than conventional learning, while students with high and low initial abilities are no more than conventional learning, and there are interactions between learning models and initial abilities affecting problem solving skill.
Penyuluhan kesehatan dan pelatihan pembuatan sabun dari minyak jelantah kepada santri dhuafa di Pesantren Tahfidzul Qur’an Kaffah Al-Mundzirin Palembang Ahadito, Bijak Riyandi; Susilawati, Susilawati; Yuliasari, Nova; Yohandini, Heni; Hermansyah, Hermansyah
Jurnal Pengabdian Masyarakat: Humanity and Medicine Vol 3 No 3 (2022): Jurnal Pengabdian Masyarakat: Humanity and Medicine
Publisher : Fakultas Kedokteran Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32539/Hummed.V3I3.86

Abstract

Qur’an-Memorizing Boarding School Kaffah Al-Mundzirin Palembang is facing two problems: threat of scabies outbreak and poorly managed waste of used cooking oils. Production of soap from used cooking oil can be a two-pronged solution for these problems. Public Service Team from Faculty of Mathematics and Natural Sciences, Universitas Sriwijaya have carried out health counseling and training of soapmaking to 36 students, school administrators, and guests. Health counseling explains about the symptoms, spread, mitigation, and prevention of scabies, while soapmaking training explains about the cold process saponification method by demonstration. This activity has successfully implanted knowledge about scabies and method of soapmaking from used cooking oil within students and school administrators. Moving forward, we suggest that this activity to be accompanied with training of marketing methods and strategies so that the soap that were made can be turned into a sellable product to help with the school’s economy.
Penyuluhan dan pelatihan pembuatan ekoenzim upaya pemanfaatan limbah organik rumah tangga di desa Tebedak 2 kecamatan Payaraman kabupaten Ogan ilir Sumatera Selatan Hermansyah, Hermansyah; Hasanudin; Yuliasari, Nova; Rasyid, Riana Sari Puspita; Susilawati
Jurnal Pengabdian Masyarakat: Humanity and Medicine Vol 5 No 1 (2024): Jurnal Pengabdian Masyarakat: Humanity and Medicine
Publisher : Fakultas Kedokteran Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32539/Hummed.V5I1.141

Abstract

Ecoenzymes are the result of fermentation of organic materials originating from kitchen waste in the form of fruit or vegetable peels which have many benefits for nature and humans, including as natural plant fertilizer, natural herbicides and pesticides, even in the field of human health. Utilizing fruit and vegetable waste is one of the 'zero waste' movements that can reduce the greenhouse effect. Community Service Program (PPM) activities by utilizing household waste into ecoenzymes were carried out in Tebedak 2 village, Payaraman, Ogan Ilir Regency. This activity is very simple and includes collecting and processing fruit or vegetable waste, mixing it with molasses and water in a ratio of 3: 1: 10, then fermenting or leaving it in a plastic container for 30 to 90 days until ecoenzymes are produced. The training participants were mostly attended by women, with the age range of participants being 20–50 years. The training material delivered, responses to the material delivered, how to implement the material, clarity of the counseling and training material, counseling on whether the information and knowledge provided will be applied, and satisfaction in delivering the counseling and training information were assessed by the majority as very good by the participants. The results of this questionnaire show that this activity is very beneficial for society.
Modification of pristine layered double hydroxide to form metal oxide composites as an anionic dye photodegradation catalysts Yuliasari, Nova; Amri; Mohadi, Risfidian; Elfita; Lesbani, Aldes
Communications in Science and Technology Vol 7 No 2 (2022)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.7.2.2022.1009

Abstract

Pristine layered double hydroxide (LDH) in the form of clay Mg/Al LDH was enhanced its catalytic ability by impregnating metal oxides to form Mg/Al-metal oxide composites in congo red (CR) degradation. The composite was calcined at a not high temperature of 300 oC and characterized using SEM and DRUV. In this report, the photodegradation of CR as anionic dye was optimized based on the variables of pH, catalyst weight and time radiation. The stability of the catalyst was studied from the percent degradation in the recycling test. The characterization of the catalyst that has undergone 5th regeneration cycles was carried out using XRD and FTIR. The results of this study revealed that catalysis by Mg/Al-metal oxide composites resulted in a better percent degradation, rate constant and materials stability than pristine Mg/Al LDH. Mg/Al LDH, Mg/Al-TiO2 and Mg/Al-ZnO catalyzed the photodegradation of CR by 65.97%, 73.06 % and 86.86%, respectively.
Utilizing Areca catechu L. Fruit Peel-Derived Biochar and Hydrochar for Congo Red Adsorption: Kinetic and Thermodynamic Analysis Adawiyah, Robiatul; Yuliasari, Nova; Hanifah, Yuliza; Alawiyah, Kamila; Rahayu Palapa, Neza
Indonesian Journal of Environmental Management and Sustainability Vol. 8 No. 4 (2024): December
Publisher : Magister Program of Material Science, Graduate School of Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/ijems.2024.8.4.135-144

Abstract

This study explores the conversion of Areca fruit peel into carbon-based materials biochar (BC) and hydrochar (HC) for use as adsorbents in synthetic dye removal from wastewater. Conversion was achieved through pyrolysis for BC and hydrothermal carbonization (HTC) for HC. X-ray diffraction (XRD) analysis confirmed carbon formation, with both HC and BC showing an amorphous characteristics. FTIR analysis identified hydroxyl, carboxyl, acid, and ester functional groups in BC, HC and Areca fruit peel materials that are essential for adsorption. BET surface area measurements showed 82.584 m2/g for BC and 77.618 m2/g for HC. Adsorption experiments demonstrated CR removal capacities of 40.515 mg/g for HC and 40.616 mg/g for BC, significantly surpassing the 23.168 mg/g capacity of untreated Areca fruit peel. Over three regeneration cycles, both BC and HC retained structural integrity, highlighting their potential as reusable adsorbents for dye removal. These results suggest that Areca fruit peel-derived BC and HC are promising, sustainable adsorbents for wastewater treatment, particularly in mitigating environmental impacts from industrial dyes.
Synthesis and Characterization of Schiff Base from 4,4-Diaminodiphenyl Ether and Vanillin and its Interaction with Cu2+ Metal Ion Hidayati, Nurlisa; Dhamayanti, Erika; Desnelli, Desnelli; Said, Muhammad; Yuliasari, Nova; Nurlailia, Umi
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 9, No 3 (2024): October 2024
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v9.i3.163

Abstract

The Schiff base has synthesized from the reaction between 4,4-diaminodiphenyl ether and vanillin. The resulting Schiff base acts as a ligand and interacts with Cu2+ metal ions to form a complex compound. The Schiff base was analyzed using UV-visible and FT-IR spectroscopy, as well as X-ray diffraction (XRD). The stability of the Schiff base under different pH conditions was investigated, along with the interference effects of Cd2+ and Zn2+ ions on the formation of Schiff base complexes with Cu2+. The formation of a yellow solid crystal indicated the successful synthesis of the Schiff base. The appearance of maximum absorption at 250 nm on the UV-Vis spectra signifies the electronic transition from π to π*. Absorption spectra at 1600 cm-1 indicate the presence of an azomethine group. The diffraction pattern showed a sharp peak at an angle of 2θ= 19.301°, 51.04° for the Schiff base 4,4-diamino diphenyl ether-vanillin. Schiff base compounds exhibit the highest stability at pH 5, where the C=N double bond formed is more stable than other pH. Schiff base ligands form complexes with Cu2+ metal ions, characterized by absorption in the charge transfer region (LMCT) at λ 400 nm and the d-d transition at λ 630 nm. The presence of Cd²⁺ and Zn²⁺ metal ions shifting absorption of the Schiff Base-Cu²⁺ ligand complex towards shorter wavelengths (hypsochromic effect)
Areca Catechu Biochar and Nano-Biochar as Adsorbents for Congo Red: Synthesis, Characterization, and Performance Evaluation Adawiyah, Robiatul; Yuliasari, Nova; Hanifah, Yulizah; Palapa, Neza Rahayu
Bulletin of Chemical Reaction Engineering & Catalysis 2025: BCREC Volume 20 Issue 1 Year 2025 (April 2025)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20322

Abstract

The presence of hazardous synthetic dyes such as Congo Red in industrial wastewater poses a significant environmental threat. This study explores the potential of biochar (BC) and nano-biochar (nano-BC), derived from Areca catechu husk as sustainable adsorbents for dye removal. Nano-BC was synthesised via hydrothermal carbonisation and mechanical ball milling, leading to enhanced structural and surface properties. X-ray Diffraction (XRD) revealed that the Pinang husk is predominantly amorphous, while BC exhibits increased crystallinity with sharp peaks, and nano-BC demonstrates the highest crystallinity and nanostructural refinement. Fourier Transform Infra Red (FTIR) confirmed the transformation of aliphatic-rich raw biomass into aromatic-dominant structures in BC and nano-BC, with nano-BC showing more pronounced graphite-like features. Scanning Electron Microscope (SEM) illustrated the morphological evolution, with nano-BC exhibiting refined, uniformly porous structures. BET analysis revealed that nano-BC has a significantly higher surface area 41.38 m²/g and smaller pore size 8.4928 nm compared to BC 22.38 m²/g and 15.39 nm, enhancing adsorption capacity. Furthermore, the adsorption kinetics followed the pseudo-second-order model, and isothermal analysis confirmed monolayer adsorption with the highest maximum adsorption capacity (Qmax = 154.526 mg/g). These findings highlight the superior adsorption performance of nano-BC, emphasising its potential for environmentally friendly water treatment applications. Copyright © 2025 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Penambahan Eco-Enzym Pada Pembuatan Sabun Cair untuk Menjaga Kesehatan Kulit di Desa Burai Kecamatan Tanjung Batu Kabupaten Ogan Ilir Desnelli, Desnelli; Riyanti, Fahma; Eliza, Eliza; Hidayati, Nurlisa; Syarif, Nirwan; Yuliasari, Nova
Ahsana: Jurnal Penelitian dan Pengabdian kepada Masyarakat Vol. 3 No. 1 (2025): Februari 2025 - Ahsana: Jurnal Penelitian dan Pengabdian kepada Masyarakat
Publisher : Indonesian Scientific Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59395/ahsana.v3i1.374

Abstract

Sabun cair digunakan sebagai pembersih dengan media air. Bahan yang ditambahkan pada sabun cair seperti pewangi, pelembab, antiseptik, penambah busa dan lain lain. Antiseptik merupakan zat yang bisa membasmi atau menghambat pertumbuhan kuman seperti virus, bakteri atau jamur. Bahan antiseptik dapat berupa bahan kimia atau bisa juga bahan alami yang mengandung zat antiseptik seperti lidah buaya, daun sirih, eco-enzym dan lain lain. Eco-enzyme mempunyai arti enzim ramah lingkungan mengandung asam asetat, dan berbagai enzym seperti lipase, tripsin, amilase yang mampu membunuh bakteri patogen sehingga dapat digunakan sebagai bahan antiseptik pada sabun. Kegiatan Pengabdian pada masyarakat berupa penyuluhan dan praktek pembuatan sabun cair dilaksanakan di desa Burai Tanjung Batu, Ogan Ilir. Peserta umumnya ibu ibu dan remaja putri yang berjumlah sekitar 20-30 orang. Metode pembuatan sabun cair dengan eco-enzym sangat mudah dipahami oelh peserta dan memberikan peluang membuka usaha pembuatan sabun cair antiseptik.
Preparation and Application of Biochar from Areca catechu L. Peel for Malachite Green and Reactive Blue Dyes Removal Palapa, Neza Rahayu; Putra, M. Bagus Kurnia; Musifa, Eva; Yuliasari, Nova; Adawiyah, Robiatul
Indonesian Journal of Environmental Management and Sustainability Vol. 9 No. 1 (2025): March
Publisher : Magister Program of Material Science, Graduate School of Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/ijems.2025.9.1.28-35

Abstract

 The utilization of Areca catechu L. fruit peel waste as biochar offers a sustainable solution for waste management while enhancing the material’s value as an efficient adsorbent. Biochar from Areca catechu L. fruit peels was processed through pyrolysis for 2 hours at temperature of 500oC. This study investigates the use of biochar from Areca catechu L. peel as an adsorbent for Malachite Green (MG) and Reactive Blue (RB) dyes in a batch system, with a focus on analysing the kinetic adsorption processes. The biochar was characterized using XRD, FTIR, SEM and BET. BET analysis was conducted, which shows that the surface area of biochar from Areca catheca L. fruit peel after pyrolysis treatment was 29.52 m2/g. The adsorption of MG by the biochar from Areca catechu L. peels was found to be greater than that of RB. The biochar showed an adsorption capacity of 16.113 mg/g for MG, while its capacity for RB was 15.499 mg/g. The adsorption process of biochar from Areca catechu L. peels for both MG and RB dyes follows a pseudo-second-order kinetic model.
Penyediaan Obat Penyakit Kulit Dan Luka Dari Cairan Fermentasi Lidah Buaya Dan Daun Sirih Riyanti, Fahma; Desnelli, Desnelli; Fatma, Fatma; Yuliasari, Nova; Julinar, Julinar; Musifa, Eva
Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat Vol. 5 No. 3 (2025): Mei 2025 - Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat
Publisher : Indonesian Scientific Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59395/altifani.v5i3.693

Abstract

Cairan Fermentasi anaerob pada lidah buaya dan daun sirih mengandung enzim-enzim, beberapa senyawa kimia, dan sumber antimikroba alami. Kandungan ini memiliki kemampuan terhadap antibakteri dan anti jamur yang bermanfaat untuk mengobati penyakit kulit, luka dan untuk kesehatan kulit. Proses penyembuhan dapat dipercepat karena senyawa antibakteri menstimulator respon imun tubuh sehingga dapat menyembuhkan luka dan penyakit kulit. Kegiatan pengabdian yang berupa penyuluhan, praktek pembuatan cairan fermentasi lidah buaya - daun sirih dan pemberian produk yang sudah jadi merupakan metode yang dilaksanakan di Desa Permata Baru Kecamatan Indralaya Utara Kabupaten Ogan Ilir. Agar peserta penyuluhan memahami tujuan kegiatan maka dilakukan praktek pembuatan cairan fermentasi dan peserta penyuluhan yang dibagi menjadi 3 kelompok. Pelaksanaan kegiatan dilaksanakan sebanyak tiga kali. Pelaksanaan kedua adalah memantau cairan fermentasi yang dibuat sebelumnya. Hasil fermentasi dibuka setelah 3 bulan, ketiga cairan fermentasi tersebut berhasil dibuat ditandai aroma asam segar dan warna coklat.
Co-Authors Aisah, Nilda Nursiahma Aldes Lesbani Amri Amrifan Saladin Mohruni Anandika, Aditya Aneka Firdaus Bijak Riyandi Ahadito Dendy Adanta Desnelli Desnelli Dewi Puspita Sari Dhamayanti, Erika Elfita Eliza Eliza Fahma Riyanti Fatma Hanifah, Yuliza Hanifah, Yulizah Hasan Basri Hasanudin Heni Yohandini Hermansyah Hermansyah Irsyadi Yani Julinar Julinar Kamila Alawiyah MUHAMMAD SAID Muhammad Yanis Musifa, Eva Nirwan Syarif, Nirwan Nurlailia, Umi Nurlisa Hidayati Putra, M. Bagus Kurnia Rasyid, Riana Sari Puspita Risfidian Mohadi Robiatul Adawiyah Saputra, M. A. Ade Susilawati, Susilawati Teguh Prakoso, Akbar Yulia Resti