Article Per Year (5 Year)
p-Index From 2021 - 2026
8.814
P-Index
This Author published in this journals
All Journal Biospecies PUJANGGA: Jurnal Bahasa dan Sastra Science and Technology Indonesia Jurnal Penelitian Pendidikan IPA (JPPIPA) Biosfer: Jurnal Pendidikan Biologi Dinamisia: Jurnal Pengabdian Kepada Masyarakat Diklabio: Jurnal Pendidikan dan Pembelajaran Biologi Jurnal Transformative JKIE (Journal Knowledge Industrial Engineering) WIDYA LAKSANA Indonesian Journal of Chemical Analysis (IJCA) Jurnal Pengabdian Magister Pendidikan IPA Infoman's: Jurnal Ilmu-Ilmu Manajeman dan Informatika Jurnal Sistem Cerdas DIKEMAS (Jurnal Pengabdian Kepada Masyarakat) Journal of English Education and Teaching (JEET) Jurnal Perencanaan Pembangunan Lateralisasi Journal of Business, Management, and Accounting IJOEP : International Journal of Ecophysiology TEPIAN Al-Muaddib : Jurnal Kajian Ilmu Kependidikan JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) International Journal of Social and Management Studies (IJOSMAS) Well Being Scientax: Jurnal Kajian Ilmiah Perpajakan Indonesia Journal for Lesson and Learning Studies PAKDEMAS : Jurnal Pengabdian Kepada Masyarakat Jurnal Sistem Informasi Triguna Dharma (JURSI TGD) Jurnal Sylva Lestari Journal of Artificial Intelligence and Engineering Applications (JAIEA) Diadik: Jurnal Ilmiah Teknologi Pendidikan SITAWA : Jurnal Farmasi Sains dan Obat Tradisional Bandung Conference Series: Journalism International Journal of Educational Research Excellence (IJERE) Journal of Artificial Intelligence and Digital Business Jurnal Mediakita : Jurnal Komunikasi dan Penyiaran Islam Journal Learning Geography Jurnal Ilmiah Research Student Jurnal Pengabdian Masyarakat dan Riset Pendidikan Jurnal Al-hikam Jurnal Dirosah Islamiyah El-Mujtama: Jurnal Pengabdian Masyarakat jabdimasunipem Indonesian Journal of Pedagogy and Teacher Education Tasikmalaya Nursing Journal Jurnal Pengabdian Masyarakat Mandira Cendikia (JPKM-MC) Transformasi Manageria: Journal of Islamic Education Management JIS Action Research Journal Edubiotik : Jurnal Pendidikan, Biologi dan Terapan Proletarian : Community Service Development Journal SITEDI SITEDI (Sistem Informasi dan Teknologi Digital) Indonesian Journal of Social Sciences, Policy and Politics (IJSSPP) Cleanliness: Journal of Health Sciences and Medical Research Paradigma: Jurnal Filsafat, Sains, Teknologi, dan Sosial Budaya
Riyanto
Unknown Affiliation
Religion 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

Published : 79 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search
Journal : Science and Technology Indonesia

 1 
Preparation of PAN/PVDF Nanofiber Mats Loaded with Coconut Shell Activated Carbon and Silicon dioxide for Lithium-Ion Battery Anodes Almafie, Muhammad Rama; Dani, Rahma; Riyanto; Marlina, Leni; Jauhari, Jaidan; Sriyanti, Ida
Science and Technology Indonesia Vol. 9 No. 2 (2024): April
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2024.9.2.427-447

Abstract

Utilizing carbon materials derived from natural biomass holds significant promise for battery applications, owing to their low cost, abundant availability, and environmentally sustainable characteristics. However, graphite anode materials do not meet the demands of efficient batteries. Coconut shell waste has the potential to be used as activated carbon in energy storage anodes. By adding silicon dioxide (SiO2) to maintain structural stability and electrochemical reaction kinetics, the advantages of CCS can be maximized. Polyacrylonitrile/polyvinylidene fluoride (PAN/PVDF) composite polymer was used as a matrix to embed CCS/SiO2 and synthesize nanofibers via electrospinning. The resulting nanofibers had diameters ranging from to 575–707 nm, with cross-linked, porous, and beadless characteristics. Mechanical properties were measured by single-fiber micro tensile tests. The young modulus, tensile strength, and toughness of each nanofiber were successfully maintained at 13.7 ± 0.4 MPa, 34.4 ± 0.1 MPa, and 982 ± 10 kJ/m3, respectively, because of the presence of a β-crystal growth layer that facilitated efficient stress transmission. The reduction-oxidation process response had a potential difference of less than 1.286 V in the first cycle, whereas for the third and fifth cycles, it was maintained below 3.416 V. The lithium-ion diffusion coefficient was below 4.73×1013 cm2/s. Using the anode directly, as in lithium-ion batteries, provided a high capacity of 382 mAh/g after 200 cycles. Good cycle stability, with over 98% retention of the initial capacitance after 200 charge/discharge cycles, underscores its potential for application in lithium-ion batteries.
Synthesis of Au-Pd-NPs Materials and Application as Electrochemical Sensor of Hydroquinone in Cosmetics Riyanto; Mardliyaliari, Safira; Sabrina, Alya; Ridho, Muhammad
Science and Technology Indonesia Vol. 10 No. 1 (2025): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2025.10.1.294-302

Abstract

Hydroquinone is a hazardous and toxic chemical often added to cosmetics due to bleaching properties. It is commonly analyzed in cosmetics using expensive and time-consuming instruments, showing the need for a cheap, fast, and sensitive hydroquinone electrochemical sensor. The performance of electrochemical sensor to detect hydroquinone is determined by the working electrode. Therefore, this study aimed to explore the synthesis of Au-Pd-NPs working electrode and application as electrochemical sensor of hydroquinone in cosmetics. Synthesis process was carried out by preparing Au-NPs using banana peel extract (Musa acuminata Colla) as a bioreductor, followed by adding H2PdCl4 solution. Au-NPs nanoparticle was confirmed using Ultraviolet-Visible spectrophotometer, which showed maximum wavelength of 550 nm. The indication of Au-Pd-NPs was shown by the peak at the same wavelength. The FTIR spectrum showed pectin which acted as a bioreductant agent in synthesis of nanoparticles. The results of the TEM image showed that Au-NPs had a spherical shape in the dark field with a diameter of 38.5 ± 3.3 nm and a Pd shell layer around the Au core in the bright field with a diameter of 12.4 ± 2.6 nm. The solid Au-Pd-NPs materials were made into a composite electrode by adding PVC and tetrahydrofuran as solvents. Electrochemical response of Au-Pd-NPs electrode was tested by cyclic voltammetry in ferricyanide and PBS solutions at pH 7.0. Based on CV in the ferricyanide system, it shows that Au-Pd-NPs electrode produces peak oxidation and reduction currents ten times higher than Au-NPs. These data indicate that Au-Pd-NPs are more reactive and sensitive than Au-NPs electrodes. The Au-Pd-NPs electrode was used to analysis the concentration of hydroquinone in cosmetics samples. Electrochemical response showed a linearity (R2) of 0.9935 in concentration range of 0-60 mM, containing 1.12% hydroquinone.
Co-Authors Abdilah, Refki Abdul Azis Achmad Daroini Achmad Saddam Ramalla Achmad Wahidy, Achmad Adam Prayogo Kuncoro Addelia Ade Irma Oktaviani ade rahmawati Ade saputra Adi Widodo Adi Widodo Adi Yanto Agung nugroho, Yunianto Aini, Azizah Nurul Ali Maksum Ali Mulyanto Almafie, Muhammad Rama Aman Evendi Aman, Mustar Ami Primarni Amie Primarni Anisa Yahyani, Wien Anisahtul Karomah April Gunawan Malau Aprivianda Endah Lesmanasari Arde Toga Nugraha Arga Vidi Fazza Aria Aditama , Yoga Asbari, Masduki Asih Triastuti Asmirna, Nora As’ad Samsul Arifin Ayok Ariyanto Ayu Puspita, Dara AYU WULANDARI Azwar, Edi Bachtiar, Galuh Bainah Sari Dewi Bakri, Delliani Barasa, Larsen Basuki, Sucipto Beby Tiara Bela Oktavia Boby Ardiyansah Chaira H Saidah Yusrie Chaira Saidah Chaira Saidah Yusrie Christine Wulandari Cris Kuntadi Damaryan, Difa Dani, Rahma Dedeh Husnaniyah Dessy Wardiah, Dessy Dewi Nurmarlina Dhanar Intan Surya Saputra Dini Nur Alpiah Dwi Krisbiantoro Dwi Lestari Effendi, Darwin Eko Budiono Eko Risdianto Emmy Harso Kardhinata Erick Fernando B311087192 Ervana, Ervana Fadhilah Oriyasmi Fadli Fadilillah Faisal Amir Fathor Rakhman Fayzhall, Mivy Fazrol Rozi, Fazrol Gozali, Edy Harared, M.A., Nico Harry Surahman Hary Soedarto Harjono Hasanah Helmalia Ajeng Agustina Hendra Marcos Hikmawati, Kitri Ida Sriyanti Ika Kartika Indah Rakhmawati Afrida Ipang Sasono Irfan Santiko Irma Darmayanti Irma Lusi Nugraheni Irman Hermadi Iza, Nikmatul Jaidan Jauhari JAINURI, JAINURI Joni Iskandar Joni Iskandar, Joni Kamsari, Kamsari Katni KATNI KATNI Khoiron Nazip, Khoiron Kurniasari, Nanda Lahudin Laskita Dewi, Maya Lia Rokhmawati Linda Iryani Lis Susilawati Makmudi Mardliyaliari, Safira Maria setyastanto, Albertus Masteriarsa, Muhammad Fikri Meilinda Miftahus Surur Mistianah Muchammad Ismail Muhamad Yusuf Ibrahim Muhammad Arsyad Muhammad Hafidz Baihaqi Muhammad Ridho Muhammad, Adji Suradji Munah Munandar, Kukuh Nadeak, Multi Nasution, Jamilah Neni Murniati Nico Harared Nisak, Sayida Khoiratun Novita Olin, Maria Nugroho, Yunianto Agung Nurasiah Nuri Wiyono Nurmala Hindun Nurrosyidah Rahmawati, Nanda Nurul Iman Nurul Wahidah Nyoman Asri Hapsari Pande Mudara Oktabrianto, Oktabrianto Pamungkas, Wisnu Danureksa Parawangsa, Khofifah Indar Purbasary, Eleni Kenanga Purwaningrum, Dwi Putriana Dwi Agustin Rahma Amelia Rahmadhanti, Arini Rahmat Safe'i Rahmat Saleh Ramadhan, Syafira Elfa Raya, Mohamad Bintang Jagad Ria Indriati Rian Oktiansyah Rokhim Sunandi Rusliana Sabrina, Alya SALSABILA, ANNISA Samsul Bakri Saragih, Weni Saragih, Winda Sasono, Ipang Sestri Goestjahjanti, Francisca Sevia Umi Wardini SIGIT DWI LAKSANA Simanjuntak, Marudut Bernadtua Siti Kholifah Siti Maesaroh Siti Nurafifah Sitorus, Riris Meriati Sophia Rahmawati Sri Lestari Sudarma Sugeng Suhartono, Bambang Suhendi Sukriyah, Sukriyah Supiana, Nana Supini Suroso Susi Herawati SUYONO Syafira Indah Maryam Syahruri Syahyuri Syahyuri Syamsiar, Syamsiar Tating Nuraeni Thoni Anthoni Mukti Prasetyo Tiara Ulandari Tiara, Beby Tibrani, Masagus Mhd. Tibrani, Masagus Muhammad Tyas Ayuningrum Ujang Supriadi Ummah, Roisatul Vita Jamilah Wachidatul Linda Yuhanna Watik Widianingrum Wibowo, Titis Ari Wildan Abdillah Winanti WINANTI, WINANTI Winarno Winarno Wiyono, Nuri Wulandari, Ratu Mutiara Wulandari, Septiani Dwi Yani Nurhadryani yanto, Adi Yon Haryanto Yuliza Andriyani Siregar Yunianto Agung Nugroho Yusi Srihartini Zulkarnain