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All Journal Matematika dan Sains Jurnal EMT KITA Emerging Science Journal Civil Engineering Journal Communications in Science and Technology Mimbar Ilmu JURNAL PENELITIAN EKONOMI DAN AKUNTANSI (JPENSI) Jurnal Ilmiah Edunomika (JIE) Management Studies and Entrepreneurship Journal (MSEJ) Jurnal ABDINUS : Jurnal Pengabdian Nusantara Jurnal Rekayasa Lingkungan CORD Jurnal MESIL (Mesin Elektro Sipil) Journal of Economics and Business UBS IAIC Transactions on Sustainable Digital Innovation (ITSDI) Syifaul Qulub: Jurnal Bimbingan dan Konseling Islam Jurnal Jaring SainTek Abdi Masya Journal for Lesson and Learning Studies Journal of Education Research Journal of Advanced Sciences and Mathematics Education Formosa Journal of Sustainable Research (FJSR) Prosiding Seminar Nasional Pengabdian Kepada Masyarakat Edukasiana: Jurnal Inovasi Pendidikan Proceeding of International Conference Health, Science And Technology (ICOHETECH) Jurnal Jaringan Penelitian Pengembangan Penerapan Inovasi Pendidikan (Jarlitbang) Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII Jurnal Pendidikan Agama Islam Miazhar JS (Jurnal Sekolah) Paradoks : Jurnal Ilmu Ekonomi HIKMATUNA: Journal for Integrative Islamic Studies Indo-Fintech Intellectuals: Journal of Economics and Business OKTAL : Jurnal Ilmu Komputer dan Sains Cilpa : Jurnal Ilmiah Pendidikan Seni Rupa Hikmatuna Majapahit Journal of Islamic Finance dan Management Al-Kharaj: Jurnal Ekonomi, Keuangan & Bisnis Syariah El-Mal: Jurnal Kajian Ekonomi & Bisnis Islam Majapahit Journal of Islamic Finance dan Management Riset Akuntansi dan Keuangan Indonesia Jurnal Ekonomika dan Bisnis Blockchain Frontier Technology (BFRONT) JER LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI Journal of Ekonomics, Finance, and Management Studies Jurnal Wana Tropika Atestasi : Jurnal Ilmiah Akuntansi Journal of Indonesian Social Sciences and Humanities Environmental Insight Journal Pena Edukasia
Triyono
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Journal : Communications in Science and Technology

 1 
Study of green reductant effects of highly reduced graphene oxide production and their characteristics Chasanah, Uswatul; Trisunaryanti, Wega; Triyono; Oktaviano, Haryo Satriya; Santoso, Iman; Fatmawati, Dyah Ayu
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.7.2.2022.906

Abstract

The study of the green reductant effects to produce reduced graphene oxide (rGO) has been completed successfully. The reduction of graphene oxide (GO) was carried out chemically using various reductants such as ascorbic acid (rGO-AA), gallic acid (rGO-AG), and trisodium citrate (rGO-NS). The GO was prepared using the Tour method at a temperature of 65 ? for 6 hours with potassium permanganate: graphite weight ratio 1:3.5. The results showed that rGO-AA had the highest electrical conductivity value of 755.70 S/m, with characteristics such as a surface area of 255.93 m2/g, a pore volume of 0.61 cm3/g, an average pore diameter of 7.10 nm, ID/IG ratio of 1.93, and three graphene layers in the material nanostructure stack. Therefore, it can be concluded that the reduction of GO with ascorbic acid (rGO-AA) is the most effective in producing rGO.
Study of green and sustainable heterogeneous catalyst produced from Javanese Moringa oleifera leaf ash for the transesterification of Calophyllum inophyllum seed oil Ramdhani, Destania Ayu; Wega Trisunaryanti; Triyono
Communications in Science and Technology Vol 8 No 2 (2023)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.8.2.2023.1202

Abstract

The transesterification of Calophyllum inophyllum seed oil into biodiesel using Javanese Moringa oleifera leaf ash catalyst with various reaction conditions has been completed. MA-500 (Moringa ash at 500°C for 3 h) and MA-900 (Moringa ash at 900°C for 3 h) catalysts were obtained by grinding Javanese old Moringa oleifera leaf (MP) and then calcined for 3 h at 500 and 900°C. The crude Calophyllum inophyllum seed oil was degummed (OD) prior to continue the esterification process (ODE). The MA-500 and MA-900 catalysts were tested for their activity and selectivity through the ODE transesterification with various catalyst weights (3, 6, and 9% (w/w)), reaction temperature (55, 60, and 65°C), oil: methanol mole ratio (1:3, 1:6, and 1:9), and reaction time (60, 90, 120, and 150 minutes). The results showed that the MA-500 and MA-900 catalysts contained 18.17% and 52.91% Ca respectively. The esterification reaction could reduce FFA levels to 89.82%, from 19.46% to 1.98%. ODE transesterification with MA-900 catalyst optimum reaction conditions with a catalyst weight of 3%, reaction temperature of 60°C, oil: methanol mole ratio of 1:9, and reaction time of 120 min, 76.17% FAME yield was observed. The MA-900 catalyst has the potential to be an effective green catalyst.
Preparation of Mo-impregnated mordenite catalysts for the conversion of refined kernel palm oil into bioavtur Trisunaryanti, Wega; Triyono; Wijaya, Karna; Kartini, Indriana; Purwono, Suryo; Rodiansono; Mara, Ady; Budiyansah, Amsal
Communications in Science and Technology Vol 8 No 2 (2023)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.8.2.2023.1288

Abstract

The research aims to study the effects of Mo metal embedded on H-Mordenite on its activity and selectivity of hydrodeoxygenation (HDO) for Refined Palm Kernel Oil (RPKO) into bioavtur. The RPKO was obtained from the results of degumming and bleaching process of palm kernel oil and then analyzed using Gas Chromatography-Mass Spectrometer (GC-MS). The impregnation of Mo metal was carried out by spraying using an ammonium heptamolybdate precursor solution ((NH4)6Mo7O24•4H2O) with an initial Mo metal content of 5, 10, and 15wt% of H-Mordenite to produce 5-Mo/Mor, 10-Mo/Mor, and 15-Mo/Mor. The 15-Mo/Mor catalyst produced the highest amount of liquid product (46.08wt%) with bioavtur yield of 43.19wt%. The usability test showed that 15-Mo/Mor catalyst still produced a good performance after three times of use in the RPKO feed HDO with the second and third run test liquid product of 34.82 and 46.14wt% respectively with bioavtur yield of 32.58 and 43.45wt%, respectively.
Synthesis, characterization and performance of Ni/mesoporous silica - NH\(_2\)/mesoporous silica and Ni-NH\(_2\)/mesoporous silica as bifunctional catalyst in one step conversion of waste palm oil to biodiesel Fitria, Anissa; Trisunaryanti, Wega; Triyono; Santoso, Iman
Communications in Science and Technology Vol 9 No 2 (2024)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.9.2.2024.1483

Abstract

Sidoarjo mud is a natural material resulted from an unusual natural phenomenon and is rich in silica contents. So far, no studies have been reported about mesoporous silica from Sidoarjo Mud, which is a supported catalyst for one-step conversion to biodiesel. This study aims to explore synthesis, characterization, and applications to demonstrate the heightened activity and selectivity in the esterification- transesterification of waste palm oil into biodiesel, utilizing a one-step method aligned with the principles of green chemistry using two bifunctional catalysts (Ni/MS - NH2/MS and Ni-NH2/MS). The bifunctional catalysts were prepared by means of hydrothermal, wet impregnation, and grafting methods. The highest biodiesel yield (78.77%) was achieved under the condition of 65 °C, 3 h, methanol to oil ratio 21 : 1, and 3wt% of Ni/MS - NH2/MS as the catalyst. The catalyst was able to yield a conversion level as good as ~72% in the 3rd cycle after regeneration. The research demonstrates the industrial relevance of the catalyst, offering a sustainable solution for biodiesel production and waste management.
High-performance eco-friendly Ni Cu/bamboo activated carbon catalysts for oxidative desulfurization of high-concentration DBT Haerani, St.; Trisunaryanti, Wega; Triyono; Santoso, Imam; Purbonegoro, Jason; Wangsa
Communications in Science and Technology Vol 10 No 2 (2025)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.10.2.2025.1702

Abstract

This study investigated how the metal impregnation method affects the oxidative desulfurization (ODS) of dibenzothiophene (DBT) using H2O2 over Ni–Cu catalysts supported on bamboo-derived activated carbon. Catalysts with 1% and 2% Ni–Cu were prepared via simultaneous impregnation, while the effect of sequence was evaluated by comparing simultaneous and sequential impregnation (2%Ni-2%Cu/AC and 2%Cu-2%Ni/AC). The 2%Ni-2%Cu/AC catalyst was identified as the best catalyst, with a surface area of 802.36 m2/g, average pore diameter of 2.4761 nm, and total acidity of 3.1239 mmol/g. This catalyst achieved the highest DBT reduction of 90.81% under optimal conditions (0.2 g catalyst weight, 60 minutes, 40 °C, and 0.66 mL H2O2), confirming that the sequential impregnation route significantly enhances catalytic performance. In conclusion, the impregnation sequence in designing highly efficient desulfurization catalysts is important due to spray impregnation resulting in higher surface area, acidity, and catalytic activity compared to the simultaneous impregnation method.
Co-Authors Abdulloh Arif Mukhlas Achmad Lutfi Fuadi Adi Tri Tyaasmadi Ady Mara, Ady Afdilah, Ilham Agiel, Raiddin Muhamad Agus Suyanto Aini, Sania Qurrotu Akbar, Andi Muh. Fadlullah Akbar, Hammar Ilham Aminuyati Amyati, Amyati Andy Dwi Bayu Bawono Arif Setyo Nugroho Arina Hidayati Arri Handayani Asiati, Devi Ata, Sonata Sukama Wijaya Aulia, A Ayu Sanjaya, Yulia Putri Bambang Kusharjanta Bambang Margono Bambang Setiaji Bambang Setiaji Banu Witono, Banu Barudin Bintoro, Sefrian R. Budiyansah, Amsal Cahyani, Rizkha Gita Catur Setyawan K Catur Setyawan Kusumohadi Chamim, Moch. Dewanti, Adinda Pramesdya Rasita Dharma Priatmaja, Ade Dika, Aisyah Dika Mastura Dikadijayati Dini Rahmawati Dini Rakhmawati Diva Nanda Ayuk Agustina Dody Ariawan Donatus Setyawan Purwo Handoko Dwi Hanan, Fauzy Dynanda Eliza Nadia Loka Eko Purwanto Eko Surojo Endang Widati Faisol Mukarom Fatchan Achyani Fatmawati, Dyah Ayu Faturahman, Adam Fifi Aswita Mandala Sari Fitria, Anissa Fransisca Maria Farida ghofur Gutomo Bayu Aji Harjo Seputro, Harjo Harminto, Yopi Haryo Satriya Oktaviano Heppy Purbasari Hidayat, Erjuyn Yayan Himawan Hadi Sutrisno I D. K. Anom I. D. K. Anom Iin Purnamasari Ike Prety Shinta Ikhlilla Ayu Alfida Ilham Habibi, Ilham Ilman Arpi Imam Basori Imam Santoso Indriana Kartini Indriyana Rachmawati Irene Wahyuni Putri Izzah Nur Aida Zur Raffar Jafar Amiruddin Ja’far Amiruddin Karna Wijaya Kartono Kuncoro Diharjo Kurniawan, Fuat Edi Lamin Khaira Majid, Faishal M. Marlina, Eva Maulidiawati Meytij Jeanne Rampe Mina Olivia Rahayu Mohammad Syaiku Mori Dianto, Mori Mufarrohah Muhammad Rizqi Darmawan Muhammad Wihdatun Nafi’in MULYADI Mustofa, Siti Solekah Mycelia Paradise Nabila Putri Dwi Septiani Ngadi Ningrum, Vanda Noer Sasongko Norman Luther Aruan, Norman Luther Nugroho Heri Cahyono Nur Azizah Nur Rahmawati Nurul Muhayat Nurul Muyasaroh Oberlin Sidjabat Ovi Faturrohman Permatasari, Hanifah Pramudi, Ganjar Pratomo Setyadi Purba, Yanti Astrelina Purbonegoro, Jason Purwandari, Wd. Vitha Purwo Handoko, Donatus Setyawan Purwo Haryono Radjali Amin Raharjo, Wijang W. Rahmadani Putri, Elvi Noveria Ramdhani, Destania Ayu Rangga Handika Rasiman Rici Kardo, Rici Rizki Indah Lestari Rodiansono Roudlotul Hikmah Royani Dewi, Elisa Ruli Supriati, Ruli Sabaruddin Sandy Prasetyo Siti Nurun Ni’mah Soeharsono SRI RAHAYU Sri Suwartini, Sri St. Haerani, St. Sugiarti sugiyamin Sugiyamin Sukmaji Indro Cahyono, Sukmaji Indro Supriyanti, Dedeh Suryo Purwono Sutono Tasari Teguh Triyono Triyono Triyono Tukiyo Uswatul Chasanah, Uswatul Wahyu Purwo Raharjo Wahyutari, Sherena Wangsa Waradzi Mustakim Warniningsih Wega Trisunaryanti Wega Trisunaryanti Widya Multisari Wijang Wisnu Raharjo Wijaya, Surta Yeni Fatimah Yudha Agung Pratama Zulfikar