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All Journal Reaktor International Journal of Renewable Energy Development METANA Sawala : Jurnal Administrasi Negara Indonesian Journal of Chemistry Jurnal Organisasi Dan Manajemen Indonesia Journal of Halal Prosiding Seminar Nasional Sains dan Teknologi Terapan Conference on Innovation and Application of Science and Technology (CIASTECH) JRA: Jurnal Riset Akuntansi Jurnal Masyarakat Merdeka (JMM) Jurnal Maksipreneur: Manajemen, Koperasi, dan Entrepreneurship JIA (Jurnal Ilmiah Agribisnis) : Jurnal Agribisnis dan Ilmu Sosial Ekonomi Pertanian Dinasti International Journal of Education Management and Social Science ASEAN Journal of Chemical Engineering JUMANTIK: Jurnal Mahasiswa dan Peneliti Kesehatan Sains dan Matematika Jurnal Ilmu Pemerintahan, Administrasi Publik, dan Ilmu Komunikasi (JIPIKOM) Ilmu Pendidikan Journal of Economics and Business UBS Journal La Bisecoman Bima Abdi: Jurnal Pengabdian Masyarakat PAEDAGOGY : Jurnal Ilmu Pendidikan dan Psikologi Educoretax COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat Buletin Sistem Informasi dan Teknologi Islam Jurnal Teknologi Lingkungan Lahan Basah Jurnal Ekonomika Dan Bisnis Journal of Accounting and Finance Management (JAFM) Jurnal Pengabdian Masyarakat Bhinneka Jurnal Ilmiah MEA (Manajemen, Ekonomi, dan Akuntansi) IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Journal of Management and Administration Provision AHKAM : Jurnal Hukum Islam dan Humaniora Journal Research of Social Science, Economics, and Management Prosidia Widya Saintek Jurnal Pengabdian Pada Masyarakat Journal of Social Science Buletin Ilmiah Pendidikan GOTAVA Jurnal Profesi Insinyur Indonesia Multidisiplin Pengabdian Kepada Masyarakat (M-PKM) Waspada : Jurnal Wawasan Pengembangan Pendidikan International Journal of Renewable Energy Development Jurnal Teknik Indonesia Muria Jurnal Agroteknologi The Indonesian Journal of Health Science Jurnal Ilmiah Kesehatan dan Kebidanan
Silviana Silviana
Department Of Chemical Engineering, Faculty Of Engineering, Diponegoro University, Jl. Prof. Soedarto SH, Tembalang, Semarang 50275, Central Java, Indonesia
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Journal : International Journal of Renewable Energy Development

 1 
A Review on the Recent Breakthrough Methods and Influential Parameters in the Biodiesel Synthesis and Purification S. Silviana; Didi Dwi Anggoro; H. Hadiyanto; Cantika Aulia Salsabila; Kevin Aprilio; Anisa Widia Utami; Afriza Ni'matus Sa'adah; Febio Dalanta
International Journal of Renewable Energy Development Vol 11, No 4 (2022): November 2022
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.2022.43147

Abstract

Biodiesel has recently received much attention as an energy source with numerous benefits such as high degradability, negligible toxicity, and minimal emissions of carbon monoxide gases as well as particulates. Therefore, this research aims to compare, review, and summarize the conventional and advanced methods of biodiesel production. Currently, some emerging processes that were developed for advanced biodiesel production include microwave-assisted synthesis, ultrasonic-assisted synthesis, supercritical transesterification, and liquid phase plasma discharge technology. The types of feedstocks, catalysts, and operating conditions as the influential parameters in biodiesel synthesis are also discussed. Moreover, in the purification process, the effectiveness of purification depends on the type of catalyst applied in the synthesis process. This research also reviewed and compared several commonly used purification methods such as wet and dry washing, ion exchange and precipitation, complexation, and membrane-based separation that have shown significant results along with the impacts of biodiesel production on environmental and economic sectors
Chemically activated biochar derived from mangrove litter with enhanced CO2 adsorption capacity for carbon sequestration Ariyanti, Dessy; Syifa, Viona; Hapsari, Farida Diyah; Widiasa, I Nyoman; Widayat, Widayat; Silviana, Silviana; Purbasari, Aprilina; Setiabudi, Herma Dina; Hamzah, Fazlena
International Journal of Renewable Energy Development Vol 15, No 3 (2026): May 2026
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2026.62059

Abstract

Overcoming climate change is crucial to ensure environmental sustainability. This research focuses on the development of chemically activated biochar (CAB) from mangrove litters that can be used for CO2 adsorption, which leads to reducing the impacts of climate change. The synthesisation of CAB was carried out via pyrolysis at 400℃ for 2 hours under nitrogen gas flow, followed by treatment using various activating agents (0.1 M of H2SO4, HCl, KOH, and NaOH) for 2 hours with a biochar-to-solution ratio of 1 g : 4 mL. The activation process was designed to enhance surface area, pore characteristics, and functional groups associated with CO2 adsorption performance. The observation on the characteristics of CAB using Scanning Electron Microscope and Energy Dispersive X-Ray (SEM-EDX), The Brunauer, Emmett, Teller and Barret-Joyner-Halenda (BET-BJH), Fourier Transform Infrared Spectroscopy (FTIR), CHN Analyser, and static batch CO2 adsorption tests shows the ability of CAB in capturing CO2 through several possible mechanism. Among the samples, KOH-activated biochar (B-KOH) exhibited the highest CO2 adsorption capacity, reaching 12.47 mmol CO2 g-1 biochar. This high performance is attributed to a potassium (K) composition of 9.74%, which effectively catalyzed the development of a microporous structure, resulting in a micropore volume of 5.927 x 10-3 cm3/g and an optimized average pore width of 1.543 nm. Furthermore, B-KOH maintained the highest O-H group area (1.533 a.u. x cm-1), enhancing its affinity for CO2 molecules. This research offers an innovative and practical solution to reduce greenhouse gases and is expected to have a significant impact, both locally and globally, in advancing sustainable development.
Co-Authors . Widayat A Halim Abdul Karim Adi Darmawan Afriyanti, Kurnia Afriza Ni'matus Sa'adah Agung Hari Wibowo Agus Subagio Ahmad Ahmad Ahmad Alvinal Azmi Akbar, Rizali Alfajar, Difa Wahyu Alfariji, Moh Anandhari, Mailinda Utami Anang M Legowo Andri Cahyo Kumoro Andy Hardianto Anggadanta, Rullyansyah Anggraini, Delvia Putri Angraini, Dwi Ayu Anisa Widia Utami Anugrah Aditya Budiarsa, Anugrah Aprilia, Dita Aprilina Purbasari Apriliyani, Vivi Arie Restu Wardhani Arief Rizki Fadhillah Aries Susanty Arif, Dwi Muhammad Arjula, Jus Armansyah Matondang, Armansyah Aulia, Dwyky Hizbul Ayu Wulandari Badrus Zaman Baskara, Andika Bella Ayu Silawanda Cahyo, Agung Dwi Candra Aditya Cantika Aulia Salsabila Dadang Hermawan Dessy Ariyanti Destia, Sella Dewi, Ririn Sari Dharma Saputra, Dharma Diana Sari Diana, Asna Didi Dwi Anggoro Edy Purwanto Eka Wulandari Elmo, Rifaldi Endah Lestari Eryati, Ristiana Fadjar, Achmad Fadjar, Ahmad Fahmi Arifan Farida Yuliani Febio Dalanta Febio Dalanta Ferry Hermawan Firdawsyi Nuzula Firman Firman Firnanda, Irma Fitri Sukmawati, Fitri Gito Sugiyanto Grace, Viona H Hadiyanto H. Hadiyanto Hakim, M Rouful Hamzah, Fazlena Hapsari, Farida Diyah Harusda, Dadhan Helga, Patricia Helmy, Arif Hidayat, Asnam I Nyoman Widiasa Ikhtisholiyah, Ikhtisholiyah Irwan Ramadhan Ritonga Ismael Saleh Istiqomah Muryaningsih Kevin Aprilio Kevin Ryo Pratama Kristy, Ellena Laeli, Sobrul Lia, Rahma Lilik Rochmah, Lilik Rochmah Limbang Kustiawan Nuswantara Lovela, Adelia Luqman Buchori M. Fendy Kussuma Hadi Sufyan Mahanani Tri Asri Main, Aminullah Aminul Marlina Marlina Mastiah Mastiah, Mastiah Melati, Emilla merliyana, Merliyana Morin, Stefania Muhamad Arifin, Muhamad Muhammad Aswar Limi Muslimin, M. Nabilla, Salsa Nadiroh, Siti Novia, Rani Nugraha, Akhbar Nurmaliza, Zilha NURUL HIDAYAH Nurwantoro Nurwantoro Nuryaman Nuryaman Ogy Gugesby, Raden Pamungkas, Prihantoro Pancaputri, Arimbi Piontek Benedictus Brandon Prakarsah, Sandy Pramesthi, Rahajeng Diah Puji Rahayu Purbo Suwandono Purnama Putra, Purnama Putri, Avira Maresa Rafi’i, Ahmad Rafi’i, Ahmad Rahmah Hastuti Rahmansyah, Agie Ahadian Rahmawati, Eko Ratna Purwaningsih Rosnawaty, Rini Rusipah, Ica Rusmawan, Wedi S Suherman Sabirin, Wahyu Saepul Hayat, Usep salamah salamah Saleh, Khaerul Saputra, Halent Alditya Sari, Maria Anita Satiti, Nantiya Sa’adah, Niltis Septiani, Venny Riska Setiabudi, Herma Dina Siagian, Erol Pancamotan Siti Rahmawati Siti Susanti Soenarih, Asih Sukoco, Rizki Anggara Sulardjaka Sulardjaka Sumardi . Suprastiyo, Suprastiyo Surbakti, RA Sasqia Maharani Susanti, Wilda Maya Syafrudin Syafrudin Syifa, Viona Syuraini, Syuraini Taufik Wal Hidayat, Taufik Wal Taufik, Ikhwan Teguh Prasetyo Tivani, Ernia Tobing, Binto Iskandar Hasibuan Tricahyo, Vion Age Tumanggor, Raja Oloan Tuti Alawiyah Utama, Nabila Putri Vebrina Hania Cholily Wahyuni, Titik Wardhani, Hutami Kusuma Wiedilaksono, Ardian Wijanarko, Aji Wisuda, Nova Laili Yelta Okta Dina Yulianty, Dhea Yulita Arni Priastiwi Yuniarti, Rita