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All Journal Jurnal Rekayasa Proses REKAYASA KOVALEN: Jurnal Riset Kimia IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) JC-T (Journal Cis-Trans): Jurnal Kimia dan Terapannya CHEESA: Chemical Engineering Research Articles Jurnal Rekayasa Proses Jurnal Serambi Engineering Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat Jurnal Teknologi Lingkungan Lahan Basah Jurnal Akademika Kimia JAMAIKA: Jurnal Abdi Masyarakat AbdimasMu UMTAS: Journal of Community Service Jurnal Pengabdian Pada Masyarakat JITER-PM (Jurnal Inovasi Terapan - Pengabdian Masyarakat) Molekul: Jurnal Ilmiah Kimia Jurnal Akademika Kimia

Estin Nofiyanti

Universitas Muhammadiyah Tasikmalaya

Author-ID : 3080108

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Transportation Veterinary Other

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Adsorption of Lead(II) Ions using Coconut Fiber’s (Cocos nusifera L.) Activated by Sodium Hydroxide Gatut A. Wardani; Dea D. Pamungkas; Winda T. Wulandari; Fajar Setiawan; Estin Nofiyanti
Jurnal Akademika Kimia Vol. 9 No. 2 (2020)
Publisher : Universitas Tadulako

The use of green coconut fiber waste to adsorb lead(II) ions has been successfully carried out. Coconut fiber was activated first using sodium hydroxide before being used as an adsorbent. The optimum time needed for green coconut fiber to adsorb lead(II) ions was 30 minutes with the percentage of ions adsorbed by 94.34%. The lead(II) adsorption kinetics on green coconut fiber model with R2 value of 0.999 and k value of 38.95 x 10-4 minutes-1. Adsorption isotherm from lead(II) on coconut fiber followed the Langmuir adsorption model with R2 value of 0.984 and adsorption capacity of 0.070 g.mg-1.

PELATIHAN DAUR ULANG SAMPAH PLASTIK MENJADI SOUVENIR RAMAH LINGKUNGAN DI KABUPATEN TASIKMALAYA Estin Nofiyanti; Nurcholis Salman; Novi Nurjanah; Melly Mellyanawaty; Tazkia Nurfadhillah
JAMAIKA: JURNAL ABDI MASYARAKAT Vol 1, No 2 (2020): JUNI
Publisher : Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (313.059 KB)

Sampah plastik menjadi salah satu limbah padat yang di hasilkan oleh masyarakat. Sampah plastik sangat berbahaya bagi lingkungan karena plastik tidak mudah membusuk dan sulit diuraikan. Perlu adanya kesadaran dan peran aktif dari masyarakat untuk menangani permasalahan sampah plastic. Salah satu cara penanganannya yaitu dengan program 3R ( Reuse, Recycle, Reduce). Contohnya adalah bekas air kemasan yang sudah tidak memiliki nilai diolah dan di daur ulang menjadi sesuatu yang lebih bermanfaat dan memiliki nilai ekonomis. Plastik tidak hanya menjadi sumber masalah tetapi di sisi lain sampah plastik justru memberikan peluang bisnis. Pelatihan daur ulang sampah plastik ini bertujuan agar peserta dapat memiliki keterampilan dan jiwa berwirausaha hasil daur ulang sampah plastik. Metode yang digunakan meliputi penyuluhan dan pelatihan serta praktek langsung. Hasil kegiatan menunjukkan bahwa program PkM dapat dilaksanakan dan direspon dengan baik oleh ibu-ibu PKK Desa Bugel, Kecamatan Ciawi, Kabupatan Tasikmalaya. Peserta pelatihan terlihat sangat antusias dalam membuat aneka kerajinan dari sampah plastik. Keterampilan membuat aneka souvenir ramah lingkungan dari sampah plastik ini sangat bermanfaat bagi ibu-ibu PKK Desa Bugel. Souvenir yang dihasilkan selain bisa dijual untuk menambah pendapatan keluarga, juga dapat mengurangi jumlah sampah plastik yang sulit terurai.

Arang Aktif Ampas Tebu Termodifikasi Kitosan sebagai Adsorben Tetrasiklin: Pemanfaatan Metode Kolom: Chitosan Modified Sugarcane Bagasse Activated Charcoal as Tetracycline Adsorbent: Utilization of the Column Method Gatut Ari Wardani; Adinda Nur Octavia; Mochamad Fathurohman; Taufik Hidayat; Estin Nofiyanti
KOVALEN: Jurnal Riset Kimia Vol. 8 No. 3 (2022): December Edition
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/kovalen.2022.v8.i3.16090

Currently, antibiotics are considered environmental pollutants because of their undesirable effects on human health and the environment, including the waste of antibiotics tetracycline hydrochloride. While on the other hand, bagasse is an agricultural waste that has no economic value. This study aims to study the characteristics of activated charcoal from bagasse and the use of bagasse as chitosan-modified activated charcoal using the column method to determine the variation of adsorbent height, flow rate, and acidity of the solution in the ability of the bagasse adsorbent to adsorb tetracycline hydrochloride. Bagasse goes through a carbonation process using a furnace at a temperature of 350°C until charcoal is formed. The next process is activation using 2 M phosphoric acids and compared based on SNI 06-3730-1995 regarding technically activated charcoal. Determination of functional groups using Fourier Transform Infra-Red, adsorbent morphology using Scanning Electron Microscope, and crystallinity using X-Ray Diffraction. The concentration of tetracycline hydrochloride before and after adsorption was measured using an Ultra Violet-Visible spectrophotometer. The best absorption results in the adsorption process were found at the adsorbent height of 14 cm (99%), the flow rate of 0.5mL/minute (92%), and pH 4 (93%).

Science Learning Training Using Information Technology in The Covid-19 Pandemic Muhammad Taufiq; Noer Laelly Baroroh TAG; Estin Nofiyanti; Nandhini Hudha Anggarasari
AbdimasMu UMTAS Vol. 1 No. 1 (2022): AbdimasMu UMTAS: Journal Of Community Service
Publisher : LPPM Universitas Muhammadiyah Tasikmalaya

The Covid-19 pandemic has a direct impact on the environment of society, both regarding aspects of knowledge and aspects of problem solving which are all trial and error or speculative on various things, as a result in the world of education it is also inseparable from various problems, so that not a few end up leading to conflicts or debate. This community service program (PKM) is aimed at SMA Muhammadiyah Pangandaran teachers with the aim of being able to help solve problems, especially those related to the Teaching and Learning Process in the form of networks (online) in the field of science learning. For this reason, it is necessary to have a technology device that can help teaching and learning activities, especially internet-based information technology applications, with the hope that the online teaching and learning process can take place as it should. and motivate teachers to teach. The results of this PKM activity are in the form of increased motivation or enthusiasm for teaching and additional insight into the use of Information Technology (IT) in carrying out the On Line-based Teaching and Learning Process. In conclusion, the PKM which was appointed under the title Science Learning Training Using Information Technology in the Covid-19 Pandemic Period provided an adequate contribution to 32 SMA Muhammadiyah Pangandaran teachers as training participants.

Edukasi Mengenai Peranan Reaksi Kimia dalam Tubuh Bagi Anak Usia Dini di Kober Al-Mujahidin Estin Nofiyanti; Noer Laelly BTAG; Nandhini Huda A; Gatut Ari Wardani
Jurnal Pengabdian Pada Masyarakat Vol 7 No 3 (2022): Jurnal Pengabdian Pada Masyarakat
Publisher : Universitas Mathla'ul Anwar Banten

THE ROLE OF CHEMICAL REACTION IN THE BODY EDUCATION FOR EARLY CHILDHOOD IN KOBER AL-MUJAHIDIN. The essence of Early Childhood Education (PAUD) is education that organized with the aim of facilitating the growth and development of children as a whole, emphasizing on the development of all aspects of the child's personality. The PAUD program must focus on all aspects of child development according to the interests, needs, and abilities of the child. In addition, development programs should instill and foster behavior and attitude development through good habits. Science learning can be used as a medium to stimulate developmental aspects and maximize children's potential. This Community Service Program was held at Kober Al Mujahidin, Pangandaran Regency. This activity aims to introduce body organs and provide education about the role of chemical reactions in the body for early childhood. This community Service Program was carried out through three stages, namely the preparation stage (survey & observation), implementation and evaluation stages. The results showed that the implementation program can increase students' understanding in recognizing the chemical processes that occur in their bodies. School partners also gain experience contextual learning materials for early childhood students in an interactive and fun way.

Uji Efektivitas Ulat Hongkong (Tenebrio molitor L.) dalam Degradasi Sampah Plastik Oriented Polypropylene Estin Nofiyanti; Rubiansyah Dio Lazuardi; Melly Mellyanawaty; Gatut Ari Wardani
Rekayasa Vol 16, No 2: Agustus 2023
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v16i2.19321

Oriented Polypropylene (OPP) plastic is a thermoplastic polymer that is widely used for the benefit of plastic product packaging in the pharmaceutical, cigarette, shampoo, detergent, textile, food, and beverage industries. OPP plastic has a high coefficient of thermal expansion, is susceptible to UV degradation, has poor resistance to solvents, is difficult to paint due to poor bonding properties, is highly flammable, susceptible to oxidation, and difficult to decompose naturally when it becomes waste. This study aimed to determine the ability of the Hong Kong caterpillar to degrade OPP plastic waste. This research method used a completely randomized design consisting of 4 treatments and 3 replications. The various treatments given were OPP 0.23 g for 120 caterpillars (V0); OPP 0.17 g: Bran 0.23 g for 120 caterpillars (V1); OPP 0.11 g: Bran 0.23 g for 120 caterpillars (V2); and OPP 0.06 g: Bran 0.23 g for 120 caterpillars (V3). The results showed that the feeding of OPP and rice bran affected the degradation rate of OPP plastic. The highest percent degradation value was obtained in the V3 treatment at 50% and the most optimal biodegradation rate occurred in the V1 treatment of 0.02 mg/day.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2020.v9.i2.pp107-110

Sintesis dan Karakterisasi Busa Poliuretan dari Minyak Goreng Bekas dan Toluen Diisosianat dengan Penambahan PEG-400 Nofiyanti, Estin; Mariam, Nida
CHEESA: Chemical Engineering Research Articles Vol. 1 No. 1 (2018)
Publisher : Universitas PGRI Madiun

Penelitian yang telah dilakukan bertujuan untuk mensintesis busa poliuretan dari minyak goreng bekas dan Toluen Diisosianat (TDI) dengan penambahan PEG-400 serta karakterisasi busa poliuretan yang terbentuk. Minyak goreng bekas dikonversi terlebih dahulu menjadi poliol sebelum direaksikan dengan TDI. Polimerisasi dilakukan pada temperatur kamar dengan variasi komposisi poliol minyak goreng bekas-TDI - PEG 400 yaitu (2:1,5:0); (2:1,5:1); (2:1,5:2); dan (2:1,5:3). Karakterisasi poliuretan hasil meliputi penentuan gugus fungsi menggunakan FTIR, jumlah ikatan silang menggunakan derajat penggembungan, dan sifat termal poliuretan menggunakan DTA. Poliuretan berhasil disintesis dari polyol minyak goreng bekas-PEG-400-TDI ditunjukkan adanya serapan karakteristik poliuretan dari spektra FTIR. Penambahan PEG-400 dapat menyempurnakan polimerisasi dan meningkatkan derajat penggembungan (ikatan silang semakin sedikit). Pengujian sifat termal poliuretan optimum dengan komposisi polyol minyak goreng bekas-TDI - PEG 400 (2 : 1,5 : 1) menunjukkan bahwa temperatur transisi gelas sebesar 256 oC dan temperatur degradasinya sebesar 275 oC.

Potential of Dimethyl Sulfoxide Modified Kaolin and Cetyl Trimethylammonium Bromide as Amoxycillin Adsorben Wardani, Gatut Ari; Damayanti, Ratih; Fathurohman, Mochamad; Hidayat, Taufik; Nofiyanti, Estin
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 9, No 1 (2024): February 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.i1.18

The large use of amoxicillin allows this antibiotic to enter the environment in large quantities and cause pollution. The adsorption technique can be used as a method to remove amoxicillin contaminants in wastewater by utilizing kaolin as an adsorbent. This study aims to determine the characteristics of kaolin as an adsorbent and determine the ability of kaolin to adsorb amoxicillin. Kaolin was activated with hydrochloric acid and modified using Dimethyl sulfoxide (DMSO) and cetyl trimethylammonium bromide (CTAB). The results showed that the characteristics of DMSO and CTAB-modified kaolin showed a new peak which was an O-H bending vibration in functional group analysis using FTIR. X-ray diffraction results show that the distance between planes in the kaolin structure is larger. Meanwhile, the results of the SEM analysis showed that the surface morphology of kaolin had a higher level of crystallinity than before which proved an increase in the adsorption capacity of kaolin. The adsorption kinetics follows the Santosa kinetic equation model with an adsorption rate of 0.004 min-1 and an equilibrium constant value of 0.007 L.mol-1. The adsorption isotherm test follows the Freundlich isotherm equation model with an adsorption constant value of 561.694 L.mg-1 and an empirical constant value of 0.270. Keywords: Antibiotics, Adsorption, Batch, Isotherms, Kinetics

Activated Charcoal Magnetic Composite from Jengkol Peels as An Efficient Adsorbent for Aquatic Antibiotic Removal: An in Vitro Study Wardani, Gatut Ari; Nurhidah, Mia; Wulandari, Winda Trisna; Nofiyanti, Estin; Syahputra, Ricky Andi; Indra, Indra
Molekul Vol 19 No 3 (2024)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jm.2024.19.3.8521

Antibiotic resistance has become a global issue that is quite worrying because it can threaten the survival of living things, especially humans. This resistance can occur due to the inappropriate use of antibiotics by the community. This study aims to determine the ability of activated charcoal magnetic composites (ACMC) to adsorb tetracycline hydrochloride compounds. Samples were obtained from jengkol peel waste which was charred and activated using acid and the addition of magnetic properties. The more PbFe2O4 added to activated charcoal, the greater the magnetic properties, surface area, pore-volume, and pore radius. The results showed that a type of IV adsorption isotherm which is a characteristic of mesoporous materials with a pore size of 2.0892 nm. The addition of magnetic properties to activated charcoal increase 29.33% the amount of tetracycline that is adsorbed by the adsorbent with optimal absorption in alkaline conditions. The adsorption process followed the adsorption kinetics of Ho and the Freundlich adsorption isotherm with an adsorption capacity of 76.3359 mg/g. ACMC material can potentially be one of the adsorbents that can reduce contamination of tetracycline hydrochloride antibiotics in the aquatic environment so that antimicrobial resistance can be minimized. Keyword: acidity, agricultural waste, carbonization, functional Group, VSM analysis

Co-Authors A Ibrahim A, Rifa Abdul Ghofur, Taufik Adinda Nur Octavia Anggarasari, Nandhini Hudha Ari Ramadhani, Regita Ayu Erviena Bayu Tri Laksono BTAG, Noer Laelly Chairil Anwar Dea D. Pamungkas Diana, Milah Faisal A, Faisal Fajar Setiawan Fathurohman, Mochamad FEBRIANI, AULIA Firda Mahira Alfiata Chusna Firda Mahira Alfiata Chusna Gatut A. Wardani Gatut Ari Wardani H, Nissa Hendrik Iskandar Indra, Indra M, Afta M, Zanet Mariam, Nida Mellyanawaty, Melly Mochamad Fathurohman Muhammad Fakhri Muhammad Taufiq Muna Meilani, Sri N Mariam N Nurjanah N Salman N, Fikri Nandhini Huda A Noer Laelly Baroroh TAG Noer Laelly BTAG Noerlaelly Barorroh Taufik Abdul Ghofur Novi Nurjanah Nurcholis Salman Nurhidah, Mia Nurjanah, Novi P, Hendi Priastomo, Yoga R, Rini Ratih Damayanti Rubiansyah Dio Lazuardi S, Egi Salman, Nurcholis Salman, Nurcholis Siti Nurhalimah SN, Imelda Syahputra, Ricky Andi Taufik Hidayat Taufik Hidayat Tazkia Nurfadhilah Tazkia Nurfadhillah Tutik Dwi Wahyuningsih Wagiman, Acep Winda T. Wulandari Winda Trisna Wulandari, Winda Trisna

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