Article Per Year (5 Year)
p-Index From 2021 - 2026
1.347
P-Index
This Author published in this journals
All Journal Konversi JEDCHEM (JOURNAL EDUCATION AND CHEMISTRY) Jurnal Pendidikan Fisika dan Sains (JPFS) Chemical Engineering Journal Storage (CEJS) International Review of Practical Innovation, Technology and Green Energy (IRPITAGE) Journal Serambi Engineering (JSE)
Erika Dwi Oktaviani
Politeknik Negeri Sriwijaya
Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Physics Social Sciences Other

Published : 8 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 8 Documents
Search

 1 
ANALISIS KUALITAS SABUN PENCUCI TANGAN CAIR DARI EKSTRAK DAUN KEMANGI (Ocymum basilicum L.) SEBAGAI ANTIBAKTERI ALAMI Melantina Oktriyanti; Erika Dwi Oktaviani; Nina Hartati; Sofiah Sofiah; Shella Dwitasari
JEDCHEM (JOURNAL EDUCATION AND CHEMISTRY) Vol 5 No 2 (2023): Jurnal Pendidikan, Pendidikan Kimia, dan Ilmu Kimia
Publisher : LEMBAGA PENELITIAN DAN PENGABDIAN MASYARAKAT (LPPM) UNIKS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/jedchem.v5i2.3237

Abstract

Hand soap is one of the means to clean hands from dirt, germs and other things that make hands dirty. To kill bacteria, some hand soaps contain active substances that can have a negative effect on humans who have sensitive skin, which can cause irritation. Some synthetic active ingredients that are harmful to human skin health are diethanolamine (DEA), Sodium Lauryl Sulfate (SLS), and triclosan which functions as an antibacterial. This study aims to obtain the composition of basil leaf extract with the right maceration time as an antibacterial and can produce liquid hand soap products that are in accordance with the quality of SNI 2588:2017 by varying the composition of the basil leaf extract and varying the maceration time. Variations in the composition of basil leaf extract are 3%, 6%, and 9% as well as variations in maceration time of 3 days and 7 days. Analysis of liquid hand soap products includes pH, insoluble in ethanol, free fatty acid content, surface tension, organoleptics, and bacteria. Based on the results of the analysis, all samples met the quality of SNI, but the sample with the best formulation of liquid hand soap was obtained at a composition of 9% extract (9 ml of basil leaf extract in 100 ml of soap volume) with a maceration time of 7 days. The results of the analysis showed that the resulting pH value is 8, the material is insoluble in ethanol 0.46%, free fatty acids 0.32% and the surface tension of soap is 13.52 dyne/cm.
PRODUK GEL HAND SANITIZER SEBAGAI ANTISEPTIK DARI EKSTRAK KULIT JERUK MANIS (Citrus sinensis (L.)) Erika Dwi Oktaviani; Melantina Oktriyanti; Nina Hartati
JEDCHEM (JOURNAL EDUCATION AND CHEMISTRY) Vol 5 No 2 (2023): Jurnal Pendidikan, Pendidikan Kimia, dan Ilmu Kimia
Publisher : LEMBAGA PENELITIAN DAN PENGABDIAN MASYARAKAT (LPPM) UNIKS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/jedchem.v5i2.3240

Abstract

Various types of bacteria, viruses and fungi will be easier to stick to and thrive on unclean hands. Making people use products that contain antiseptics such as soap and hand sanitizer. However, in general, the basic ingredient for making antiseptics comes from alcohol. The development of antiseptic products can be done with natural ingredients such as using sweet orange peel (Citrus sinensis (L.)). It is known that sweet orange peel (Citrus sinensis (L.)) contains saponin, flavonoid, and tannin compounds which act as antibacterial so that it can be a natural antiseptic ingredient for making hand sanitizer gel. This study aims to determine the effect of maceration time and composition of sweet orange peel extract on antiseptic power in hand sanitizer gel preparations and can produce hand sanitizer products that are in accordance with SNI quality by varying the maceration time of the extract, namely 3 days, 5 days and 7 days the amount of sweet orange peel extract 5%, 10% and 15%. The product analysis of hand sanitizer gel includes organoleptic, homogeneity, pH, density, viscosity, dispersibility and bacteria. Based on the results of the analysis, all samples met the quality of SNI, but the best sample was 15% composition with a maceration time of 7 days. The results of the analysis showed that the pH value was 6, the density was 1.0470 gr/cm3, the viscosity was 578.08 cP, the dispersion was 8.3 cm.
PROCESSING USED COOKING OIL INTO AN ENVIRONMENTALLY FRIENDLY PRODUCT AS A CREATIVE ECONOMIC SOLUTION Yuniar; Anerasari M; Didiek Hari Nugroho; Erika Dwi Oktaviani; Zareena Rosli
International Review of Practical Innovation, Technology and Green Energy (IRPITAGE) Vol. 5 No. 3 (2025): November 2025 - February 2026
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.19464524

Abstract

Used cooking oil (UCO) from institutional kitchens poses environmental and health risks if improperly disposed of. This community programme, jointly organised by Politeknik Negeri Sriwijaya and Politeknik Malaysia Merlimau, aimed to introduce a simple method for converting UCO into solid soap, an eco-friendly and economically valuable product. The activity employed an applied mixed-methods design, comprising pre-assessment, technical training, hands-on practice, and post-evaluation. Participants learned about UCO purification, saponification, and safe handling of NaOH. Results indicate a substantial increase in participants’ knowledge and awareness, with 100% of respondents demonstrating improved understanding of UCO hazards and soap-making procedures. Practical implementation was successful, yielding approximately 150 bars of solid soap during the workshop. All participants expressed willingness to continue soap production independently due to its low cost, environmental benefits, and potential for micro-enterprise. The programme demonstrates that simple, community-based technical interventions can effectively enhance practical competence and promote sustainable waste valorisation. This model shows strong potential for replication in similar educational and community settings.
Efektivitas Komposit Silika-Kitosan Berbasis Abu Ampas Tebu Sebagai Adsorben Ion Fe Pada Limbah Cair Printed Circuit Board Magdalena Fransiska; Anerasari Meidinariasty; Erika Dwi Oktaviani
Jurnal Serambi Engineering Vol. 11 No. 3 (2026): Juli 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Limbah cair Printed Circuit Board (PCB) mengandung ion logam berat Fe yang berpotensi mencemari lingkungan sehingga memerlukan metode pengolahan yang efektif. Penelitian ini bertujuan mengidentifikasi gugus fungsi dan morfologi komposit silika–kitosan berbasis abu ampas tebu, menganalisis pengaruh variasi massa adsorben dan waktu kontak terhadap efisiensi serta kapasitas adsorpsi ion Fe, serta menentukan model isoterm adsorpsi yang paling sesuai. Silika hasil sintesis dimodifikasi dengan kitosan untuk meningkatkan jumlah situs aktif adsorben. Karakterisasi FTIR menunjukkan keberadaan gugus –OH (3384,4 cm⁻¹), –NH₂ (1640 cm⁻¹), serta Si–O–Si dan Si–O (1051,1; 790,2; dan 708,2 cm⁻¹) yang mengonfirmasi terbentuknya komposit silika–kitosan. Analisis SEM menunjukkan permukaan menjadi lebih kasar dan granular setelah modifikasi. Pengujian adsorpsi dilakukan menggunakan variasi massa adsorben 0,1; 0,2; dan 0,3 g serta waktu kontak 40–120 menit dengan analisis AAS. Hasil menunjukkan kapasitas adsorpsi menurun seiring peningkatan massa adsorben. Kapasitas adsorpsi tertinggi sebesar 16,2 mg/g diperoleh pada massa 0,1 g selama 120 menit, sedangkan efisiensi tertinggi sebesar 82,5% diperoleh pada massa 0,2 g selama 60 menit. Model Langmuir memberikan nilai R² lebih tinggi (0,9924–0,9995), menunjukkan adsorpsi berlangsung secara monolayer pada permukaan homogen. Komposit silika–kitosan berpotensi sebagai adsorben ramah lingkungan untuk pengolahan limbah cair PCB.
Fermentasi Hidrolisat Kulit Pisang Kepok (Musa paradisiaca) Oleh Zymomonas mobilis untuk Pembuatan Bioetanol Msy Rustinra Khairunnisa; Muhammad Yerizam; Erika Dwi Oktaviani
Jurnal Serambi Engineering Vol. 11 No. 3 (2026): Juli 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/j6nrjp12

Abstract

Kulit pisang kepok (Musa paradisiaca) merupakan limbah biomassa lignoselulosa yang berpotensi dimanfaatkan sebagai bahan baku bioetanol karena mengandung selulosa, hemiselulosa, dan pati yang dapat dikonversi menjadi gula fermentabel. Penelitian ini bertujuan menganalisis pengaruh waktu fermentasi dan persentase starter Zymomonas mobilis terhadap kadar etanol serta mengarakterisasi bioetanol yang dihasilkan. Hidrolisis dilakukan menggunakan HNO₃ dengan variasi konsentrasi 2, 4, 6, 8, dan 10 N serta waktu hidrolisis 60, 75, dan 90 menit untuk memperoleh kondisi optimum. Hidrolisat terbaik difermentasi selama 24, 48, dan 72 jam dengan variasi starter 10, 15, 20, 25, dan 30%, kemudian didistilasi. Bioetanol hasil distilasi dikarakterisasi berdasarkan kadar etanol, densitas, pH, dan komposisi senyawa menggunakan Gas Chromatography–Mass Spectrometry (GC-MS). Hasil penelitian menunjukkan bahwa kondisi hidrolisis optimum diperoleh pada HNO₃ 10 N selama 60 menit dengan nilai 16,8 °Bx dan kadar gula reduksi 3,54%. Kondisi fermentasi optimum dicapai pada waktu fermentasi 48 jam dengan starter 15%, menghasilkan kadar etanol sebesar 57%. Bioetanol hasil distilasi memiliki kadar etanol 52%, densitas 0,8779 g/mL, pH 6, dan GC-MS mengidentifikasi etanol sebagai komponen dominan. Hasil penelitian menunjukkan bahwa limbah kulit pisang kepok berpotensi dimanfaatkan sebagai bahan baku bioetanol melalui optimasi proses hidrolisis dan fermentasi menggunakan Zymomonas mobilis.
PENGARUH TEKANAN FLUIDA DAN JENIS AIR BAKU PADA UNIT PENGOLAHAN AIR MINUM MENGGUNAKAN MEMBRANE REVERSE OSMOSIS SILVERTEC ULP-2012-100 Meysin; Yuniar; Erika Dwi Oktaviani; Tahdid
Chemical Engineering Journal Storage (CEJS) Vol. 6 No. 1 (2026): Chemical Engineering Journal Storage (CEJS)-Febuari 2026
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/cejs.v6i01.25113

Abstract

Air minum yang aman dan berkualitas merupakan kebutuhan penting untuk kelangsungan hidup. Air Minum Isi Ulang (AMIU) sering dipilih masyarakat karena harganya lebih terjangkau dibanding Air Minum Dalam Kemasan (AMDK). Penelitian ini bertujuan untuk mengetahiu kinerja Membran Reverse Osmosis (RO) tipe Silvertec ULP-2021-100 dalam mengolah dua jenis air baku, yaitu air PDAM dan air Sukomoro, menjadi air minum sesuai standar kualitas menurut Permenkes No. 2 Tahun 2023. Proses pengolahan diawali dengan pra-filtrasi menggunakan filter sediment dan karbon aktif, dilanjutkan dengan filtrasi utama menggunakan membran RO berukuran pori 0,0001 mikron, serta sterilisasi akhir dengan sinar ultraviolet. Variasi tekanan fluida antara 3–7 bar diuji untuk menentukan tekanan optimal yang menghasilkan kualitas air terbaik berdasarkan parameter pH, Total Dissolved Solids (TDS), dan laju alir. Penelitian ini mendapati bahwa tekanan optimal berada pada 5 bar, di mana air PDAM memiliki pH 7,4, TDS 18 mg/L, dengan laju alir mencapai 10,3171 L/jam, sedangkan air Sukomoro memiliki pH serupa 7,4, TDS 18 mg/L, dengan laju alir sebesar 9,5952 L/jam. Uji parameter kimia pada tekanan ini mengindikasikan bahwa kadar besi (Fe²⁺), klorida (Cl⁻), dan sulfat (SO₄²⁻) tetap di bawah batas standar. Sementara itu, pengujian mikrobiologi menghasilkan hasil negatif untuk total coliform dan E. coli setelah penanganan dengan sinar UV. Secara keseluruhan, sistem RO ini telah terbukti efektif serta efisien dalam menghasilkan air minum berkualitas, dengan tekanan 5 bar sebagai kondisi operasi optimal untuk kedua jenis air sumber yang digunakan
Degradasi Air Limbah Tekstil Menggunakan Fotokatalis ZnO-NiFe2O4 Ditinjau dari Sumber Cahaya dan Waktu Kontak Aisyah Yuniar; Irani Pinanti; Yuniar; Erika Dwi Oktaviani; Lety Trisnaliani
Jurnal Pendidikan Fisika dan Sains (JPFS) Vol 9 No 2 (2026): September - Februari
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Nahdlatul Ulama Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52188/jpfs.v9i2.2486

Abstract

Air limbah tekstil mengandung senyawa organik yang sulit terdegradasi sehingga berpotensi mencemari lingkungan apabila tidak diolah dengan baik. Penelitian ini bertujuan untuk mengkarakterisasi komposit ZnO–NiFe2O4 serta Mengevaluasi perubahan parameter pada variasi sumber cahaya dan waktu kontak terhadap perubahan pH, Total Suspended Solids (TSS), fenol, dan Chemical Oxygen Demand (COD) pada air limbah tekstil. Komposit ZnO–NiFe2O4 disintesis menggunakan metode kopresipitasi dan dikarakterisasi menggunakan X-Ray Diffraction (XRD) dan Fourier Transform Infrared Spectroscopy (FTIR). Proses fotokatalisis dilakukan menggunakan variasi sumber cahaya tanpa cahaya, cahaya matahari, UV 20 Watt, dan LED 15 Watt dengan waktu kontak 0-180 menit. Hasil karakterisasi menunjukkan terbentuknya komposit ZnO-NiFe2O4 dengan ukuran kristalit rata-rata 24,975 nm serta keberadaan ikatan logam–oksigen penyusun komposit. Hasil terbaik di antara kondisi yang diuji diperoleh pada penyinaran UV 20 Watt selama 180 menit dengan nilai pH 6,73, TSS 25,18 mg/L, kadar fenol 0,051 mg/L, dan COD 46,6 mg/L. Efisiensi degradasi fenol dan COD masing-masing mencapai 98,43% dan 88,97%. Hasil penelitian menunjukkan bahwa komposit ZnO-NiFe2O4 berpotensi digunakan sebagai fotokatalis untuk pengolahan air limbah tekstil.
Conversion of CO₂ to methane in the methanation process using Ni/Al₂O₃ catalyst Muhammad Fikri; Erika Dwi Oktaviani; Didiek Hari Nugroho
Konversi Vol 15, No 2 (2026): OCTOBER 2026
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v15i2.27345

Abstract

Carbon dioxide (CO₂) is a major greenhouse gas, with global emissions reaching 37.8 billion tons in 2024. CO₂ methanation via the Sabatier reaction offers a promising route for converting CO₂ into methane (CH₄) as a synthetic fuel. This study investigates the effect of reactor temperature (180–300°C) and operating time (60–180 minutes) on CO₂ conversion using a Ni/Al₂O₃ catalyst with a Zn promoter in a fixed-bed reactor integrated with a NaOH absorption unit. The novelty lies in the dual integration of NaOH, which is fed directly into the reactor and circulated to the post-reactor absorber, combined with a tray system for uniform gas distribution. Catalyst activation was performed using 4 M NaOH at 110°C for 2 hours, followed by calcination at 600°C. The process was conducted at 1 bar with a CO₂ flow rate of 0.05 L/min. Results showed that 260°C provided the best conversion, while 300°C decreased conversion due to equilibrium shifting toward reactants and excessive Zn consumption. An operating time of 120 minutes was optimal, while longer times reduced conversion due to limited Zn reductant. The optimal condition was achieved at 260°C and 120 minutes, yielding the highest CO₂ conversion of 65.59%, with a CH₄ concentration of 63.22% and residual CO₂ of 34.41%.
Co-Authors Aisyah Yuniar Anerasari M Anerasari Meidinariasty Didiek Hari Nugroho Didiek Hari Nugroho Irani Pinanti Lety Trisnaliani Magdalena Fransiska Melantina Oktriyanti Meysin Msy Rustinra Khairunnisa Muhammad Fikri Muhammad Yerizam Nina Hartati Nina Hartati Shella Dwitasari Sofiah Sofiah Tahdid Yuniar Zareena Rosli