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All Journal HAYATI Journal of Biosciences Buletin Agrohorti Jurnal Biofisika Jurnal Ilmu Pertanian Indonesia Jurnal Fitopatologi Indonesia Jurnal Teknologi Industri Pertanian ACTA VETERINARIA INDONESIANA Jurnal Ilmu dan Teknologi Hasil Hutan Jurnal Pengolahan Hasil Perikanan Indonesia VALENSI Jurnal Veteriner International Journal of Renewable Energy Development JURNAL KIMIA SAINS DAN APLIKASI Jurnal Ilmu Dasar POSITRON Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Jurnal Sains Materi Indonesia Jurnal Keteknikan Pertanian Jurnal Penelitian Hasil Hutan Buletin Penelitian Tanaman Rempah dan Obat Teknik dan Ilmu Komputer Jurnal Matematika & Sains Rekayasa Mesin JFA (Jurnal Fisika dan Aplikasinya) Jurnal Spektra Jurnal Agro JOURNAL ONLINE OF PHYSICS Omega: Jurnal Fisika dan Pendidikan Fisika Jurnal Fisika FLUX Jurnal Riset Veteriner Indonesia (Journal of The Indonesian Veterinary Research) Prosiding Seminar Nasional Teknoka Indonesian Journal of Chemistry Jurnal Purifikasi Jurnal Ilmu Fisika Jambura Physics Journal Jurnal Ilmu dan Teknologi Kayu Tropis JCPS (Journal of Current Pharmaceutical Sciences) JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Jurnal Fisika dan Terapannya Jurnal Penelitian Hasil Hutan Buletin Penelitian Tanaman Rempah dan Obat Wood Research Journal : Journal of Indonesian Wood Research Society Wood Research Journal : Journal of Indonesian Wood Research Society Makara Journal of Science Makara Journal of Technology Jurnal Ilmiah Sains Time in Physics: Journal for Theoretical, Instrumentation, Material-Molecular, and Education Physics Radial : Jurnal Ilmiah Sains Dan Rekayasa International Journal of Renewable Energy Development Wahana Fisika : Jurnal Fisika dan Terapannya Jurnal Sains Materi Indonesia Jurnal Penelitian Hasil Hutan
Akhiruddin Maddu
Departemen Fisika, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Institut Pertanian Bogor, Kampus IPB Dramaga, Jalan Agatis, Bogor 16680 Jawa Barat
Agriculture, Biological Sciences & Forestry 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 Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Veterinary

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ANALISIS EKSERGI KIMIA SISTEM KONVERSI LIMBAH PADAT CANGKANG SAWIT DENGAN TEKNIK PIROLISIS PLASMA Purawiardi , Ibrahim; Aribah, Putri; Aminuddin, Aminuddin; Dimyati , Arbi; Sari, Yessie Widya; Elbersen, Wolter; Maddu, Akhiruddin
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.1847

Abstract

Chemical exergy analysis was commonly used to evaluate the effectiveness of some energy conversions derived from biomass. In this study, this analysis was conducted to evaluate oil palm kernel shell conversion via high-temperature plasma treatment. The plasma treatment was conducted with a DC power source with a voltage of 12 V and current variations of 40, 50, 60, 70, and 80 A. This chemical exergy efficiency was calculated based on gas chromatography (GC) analytical results. The calculated results showed that the chemical exergy efficiency increased exponentially as the current increased. Thus, based on this result, the arc plasma treatment is more recommended to be applied for the pyrolysis application of oil palm kernel shell than its gasification.
Porous Carbon Black Microsphere from Palm Oil Black Liquor Jayadi, Jayadi; Maddu, Akhiruddin; Sari, Yessie; Widayatno, Wahyu Bambang; Wismogroho, Agus Sukarto; Firdarini, Cherly; Mulya, Marga Asta Jaya
Jurnal Sains Materi Indonesia Vol. 25 No. 1 (2023): Jurnal Sains dan Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jsmi.2023.686

Abstract

The aim of this research is to synthesize porous carbon black microspheres from palm oil black liquor through an in-house spray pyrolysis system. The in-house spray pyrolysis (SP) system was developed using a horizontal furnace. To test the developed SP equipment, the temperature profiles within the developed spray pyrolysis chamber were examined at 3 different setting temperatures (800, 900, and 1000 °C). These temperatures were also applied for synthesizing the carbon black microspheres, with and without nitrogen as carrier gas. The morphology of carbon black produced by using SP equipment was tested by a 3D Optical Microscope and FE-SEM. The optimum temperature obtained in this study is 1000 ºC according to the characterization of carbon black microspheres produced. The FE-SEM analysis indicated the presence of spherical carbon having microstructures. This indicates that the in-house spray pyrolysis machine has been successfully developed for synthesizing carbon black microspheres.
Effect of Precursor Solvent on the Carbon Micro-Structures Derived from Spray Pyrolysis of Pine Resin (Gondorukem): Preliminary Study Jayadi; Widayatno, Wahyu Bambang; Wismogroho, Agus Sukarto; Firdharini, Cherly; Maddu, Akhiruddin; Alatas, Husin; Sari, Yessie Widya
Jurnal Sains Materi Indonesia Vol. 25 No. 2 (2024): Jurnal Sains dan Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jsmi.2024.893

Abstract

Carbon materials have been widely used in various fields. This study aimed to produce carbon using spray pyrolysis with pine resin (gondorukem) as the precursor and different solvents, namely gondorukem-acetone (GAC), gondorukem-ethyl acetate (GEA), and gondorukem-dichloromethane (GDC). The precursor was prepared in a 1:8 (m/v) ratio, and the spray pyrolysis method was employed by heating the atomized precursor solution in the heating zone of a tube furnace. The atomization precursor was infused with nitrogen gas at a rate of 1 l/min with furnace temperature set at 1000°C with heating times of 5, 10, and 20 mins. The carbonaceous materials produced from the pyrolysis were collected on the wire mesh 1000 that was put on a stainless pipe. Carbon that has been coated on the wire mesh 1000 was analyzed using the optical microscope (OM). The physical properties and morphology of the synthesized carbonaceous material were analyzed using field emission scanning electron microscopy (FE-SEM), Fourier-transform infrared spectroscopy (FTIR), Raman, and Brunaur-Emmett-Teller (BET). Based on FE-SEM analysis, the particle size of the GAC sample has an average of 283.58 nm and the highest carbon content, which reached an average of 97.312 At%. GAC samples had the lowest disorder properties in the Raman spectroscopy test, with the value of ID/IG reaching 0.795764. The functional groups observed were C–H stretching at 2920.49 cm-1, N–H bending at 1629.07 cm-1, and C–O stretching at 1159.70 cm-1. Based on carbon content, disorder properties, and functional group stabilization, carbon from the GAC precursor provides the ideal characteristics to be used as a filter material in medical masks. Meanwhile, based on BET testing, the carbon materials from GEA have the ideal material morphological properties to be used as a filter in medical masks. Spray pyrolysis is an efficient method for producing carbon materials, and the use of gondorukem as the precursor shows great potential for various applications.
A Bibliometric Analysis of Carbon Dots in Sensors Application Putro, Permono Adi; Hardhienata, Hendradi; Isnaeni, Isnaeni; Ahmad, Faozan; Khaerudini, Deni Shidqi; Prasetyo, Andhika Prima; Maddu, Akhiruddin
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol. 12 No. 2 (2022)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v12n2.p138-155

Abstract

The exponential increase in carbonaceous-based research has prompted the scientific community to apply it to numerous value-added applications. This paper aimed to systematically analyze the comprehensive contributions clusters of publications per year, country, institution, authors, and keywords-wise by using a quantitative review technique called bibliometric analysis. The data was retrieved from the Scopus database to identify the overall scientific trend results with the keyword "carbon dots as a sensor" from 2010 to 2020. The VOSviewer, WordItOut, and Datawrapper are selected as tools for bibliometric analysis and data visualization. In this work, the total citations from the Scopus Core Set and the total citations in the most recent year have only been used for the assessment of highly cited papers. The results showed that after 2014, the number of publications increased significantly with the work related to “carbon dots as sensors.” Thus, comprehensive journals like the Angewandte Chemie - International Edition were the most popular in publishing articles, contributing to almost 6.39% of the research area. The country-wise analysis revealed that China accounted for more than 67.18% of the articles published, followed by the United States and India, comprising 6.24% and 6.13%, respectively. Lastly, keyword cluster analysis revealed five major research hotspots for future discussion. Thus, this analysis provides an important starting point for further studies on research concerning the direction of "carbon dots as a sensor" for positive development in the research area.
MATERIAL BIOKERAMIK BERBASIS HIDROKSIAPATIT TULANG IKAN TUNA Riyanto, Bambang -; Maddu, Akhiruddin -; Nurrahman, - -
Jurnal Pengolahan Hasil Perikanan Indonesia Vol. 16 No. 2 (2013): Jurnal Pengolahan Hasil Perikanan Indonesia
Publisher : Department of Aquatic Product Technology IPB University in collaboration with Masyarakat Pengolahan Hasil Perikanan Indonesia (MPHPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1095.194 KB) | DOI: 10.17844/jphpi.v16i2.8046

Abstract

Material biokeramik berbasis hidroksiapatit memiliki prospek baru dalam industri elektronika danmikroteknologi masa depan. Hidroksiapatit dengan sumber bahan baku alami merupakan potensi besar,terlebih pemanfaatan limbah tulang ikan tuna yang masih belum dilakukan dengan baik. Teknologi sintesisyang ada juga belum efektif serta karakterisasi materialnya belum banyak dikembangkan. Penelitianini bertujuan mensintesis dan mengetahui karakteristik material biokeramik berbasis hidroksiapatittulang ikan tuna. Metode yang digunakan dalam pengekstraksian hidroksiapatit tulang ikan tuna adalahdengan pemanasan suhu tinggi (sintering). Melalui suhu sintering 700ºC telah dapat dihasilkan materialbiokeramik berbasis hidroksiapatit dari tulang ikan tuna dengan rendemen tertinggi (65,61±2,21)% danberwarna putih. Semakin tinggi suhu sintering, semakin tinggi derajat kristalinitasnya, sedangkan denganSEM memperlihatkan partikel penyusunnya berukuran 0,050 μm sampai 0,803 μm dan menyerupaibentuk kristal heksagonal. Nilai kapasitansi mengalami penurunan dengan bertambahnya frekuensi yangdiberikan, dengan nilai tertinggi 0,0061 nF, sedangkan nilai konduktivitas mengalami kenaikan seiringdengan bertambahnya frekuensi dengan nilai terendah 7,73 x 10-5 S/m.Kata kunci: biokeramik, hidroksiapatit, sintering, tulang ikan tuna
BIOMASSA SEBAGAI MATERIAL ELEKTRODA SUPERKAPASITOR Nur Adi Saputra; Wasrin Syafii; Gustan Pari; Deded Sarip Nawawi; Akhiruddin Maddu
Jurnal Penelitian Hasil Hutan Vol. 40 No. 3 (2022): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2022.40.3.189-202

Abstract

Electrical storage and distribution devices become important in next generation to help integrate more renewable energy intothe electricity grid. Supercapacitor technology is considered the most promising alternative to Li-ion batteries, which have limitedLithium material. However, the low energy density is a weakness of supercapacitors, even though they have a high-power density.Activated carbon-based supercapacitor electrodes have ideal potential for development. The inherent attributes of activated carbon,pore properties, and functional groups, are responsible for improving the performance of supercapacitors. The main challenge for theresearchers is the pore size distribution, micro (<2nm), meso (2–50 nm), and macro (>50 nm), which varied in activated carbon.Micro pores have an impact on increasing the value of specific capacitance values which will encourage an increase in energy density.Meso pores have an impact on the overall accessibility of the electrode surface by electrolyte ions. Future studies will emphasize oncarbonization and activated carbon activation techniques to improve the surface quality of activated carbon.
Karakterisasi dan Suplementasi Nanofiber PVA-kurkumin pada Performa Pertumbuhan Ayam Broiler Minggu Pertama Wirahadikesuma, Ikhwan; Manalu, Wasmen; Maheswari, Hera; Maddu, Akhiruddin; Almiahsari, Ashri; Rizki, Muhammad; Mia Fitriana, And; Wirahadikesuma, Ikhwan Wirahadikesuma
Acta VETERINARIA Indonesiana Vol. 13 No. 3 (2025): November 2025
Publisher : IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/avi.13.3.259-268

Abstract

Broiler chickens are a vital global commodity, known for their rapid growth and efficiency, but their productivity has historically relied on Antibiotic Growth Promoters (AGP), necessitating the development of safe alternatives. This study aimed to assess the efficacy of Polyvinyl Alcohol (PVA)-curcumin nanofibers as a potential substitute for Antibiotic Growth Promoters (AGP) in improving the growth performance of broiler chickens. The nanofibers were synthesized via the electrospinning technique at varying PVA concentrations of 5%, 10%, and 15%, and their morphology was characterized by Scanning Electron Microscopy (SEM). The in vitro assay evaluated curcumin release profiles were measured in phosphate buffer (PBS, pH 7,4) at 37 °C. A seven-day in vivo experiment involving 30 broiler hens categorized into 5 groups to assess the impact of supplementation on body weight, feed intake, and feed conversion ratio (FCR). The synthesized PVA- curcumin nanofibers exhibited optimal dimensions (100–135 nm), with gradual curcumin release measuered at 43,5–51,5% at 5 minutes and 49,27–64,5% at 120 minutes. While statistical analysis showed no significant difference (p> 0,05). The treatment group showed higher average daily gain (ADG) (99,49–115,4 g) and feed intake (FI) (118,76–129,11 g), resulting in better feed conversion ratio (FCR) (0,921–1,00) compared to the control group. In conclusion, PVA-curcumin nanofibers were successfully synthesized, demonstrating their potential to improve growth performance, and are suitable as an alternative non-antibiotic growth promoter in broilers.
Co-Authors - - Nurrahman . Sugianto Abdulloh Rifai Agus Ghautsun Niam Agus Sukarto Wismogroho Agus Sukarto Wismogroho, Agus Sukarto Ahmad Aminuddin Ahmad Sulaeman Ahmad, Faozan Almiahsari, Ashri Aminuddin Aminuddin Andhika Prima Prasetyo Anita Firmanti Aribah, Putri Auliya Ilmiawati Bagus Irawan Bagus MARTIANTO Baihaqi, Hans Bambang - Riyanto Bambang Herawan Bambang Herawan, Bambang Bambang Riyanto Bambang Sugeng Bonny Poernomo Wahyu Soekarno Budi Arifin Candra A. Basuki Charlena Cherly Firdarini Cherly Firdharini Dede Hermawan Deded Sarip Nawawi Deded Sarip Nawawi Deni Shidqi Khaerudini Dimas Ramadhan Putra Dimas Ramadhan Putra Dimyati , Arbi Djoko Pujiarto Dodyk Pranowo Dyah Iswantini Elbersen, Wolter Erliza Noor Esa Ghanim Fadhallah Esa Ghanim Fadhallah Farly Reynol Tumimomor Fayakun, Kun Firdarini, Cherly Firdharini, Cherly Fitri Viva Yuningsih, Aida Fitriani Indahsari Gareso, Paulus P. Gareso, Paulus P. Gustan Pari Gustan Pari Gustan Pari Gustan Pari Gustan Pari Gustan Pari Gustini Syahbirin Hamdani Zain Hamdani Zain Hamdani Zain Hamdani Zain Hans Baihaqi Hardhienata, Hendradi Harry Ramza Harry Ramza Henny Purwaningsih HERA MAHESHWARI Hera Maheswari, Hera Herry Suhardiyanto Horasdia Saragih Huda Shalahudin Darusman Husin Alatas Ida Ayu Putu Sri Widnyani ikhwan wirahadikesuma Ikhwan Wirahadikesuma Imelia Dewi Inda Setyawati, Inda Ira Ukhtiningsih Ira Ukhtiningsih, Ira Irmansyah . Irmansyah Irmansyah Irmansyah Irmansyah Irmansyah Irmansyah Irzaman, Irzaman Ismail Budiman Ismail Budiman Isnaeni Isnaeni Isnaeni Isnaeni Isnaeni Isnaeni Isnaeni Jayadi Jayadi Jayadi Jayadi Jayadi Jayadi Jhav Sund Oktoricoento Johan D. Sirait Jufra Jufra Jumardin jumardin jumardin Kadapi, Muhamar koekoeh santoso Kokoeh Santoso Kudang Boro Seminar Kun Fayakun Kun Modjahidin Kun Modjahidin, Kun La Ode Muliadi LAKSMI AMBARSARI Liesbetini Haditjaroko Lina Karlinasari Luthfan Irfana M. Farouq Iksan Mahfuddin Zuhri Marga Asta Jaya Mulya Melinia Falestin Mersi Kurniati Mia Fitriana, And Moehamad Barmawi Mohamad Rahmad Suhartanto Mohammad Mujirudin Muhammad F Ikhsan Muhammad Ramdani Muhammad Rizki Mujirudin, Mohammad Mulya, Marga Asta Jaya Nafisah Nafisah Novik Nurhidayat Nur Adi Saputra Nur Adi Saputra Nurfina Yudasari Nurul Rostami Dewi Nurul Rostami Dewi Oktarina Heriyani Oktoricoento, Jhav Sund Paulus P Gareso, Paulus P Pepen Arifin Permono Adi Putro Pramudito, Sidikrubadi Purawiardi , Ibrahim Purwantiningsih Sugita Purwantiningsih Sugita Rahman, Mohammad Syuhaimi Ab Rahmani, Nabiila Rahmaniah Nalwi Rahmaniah Nalwi Ramdani, Muhammad Ramza, Harry Rasyida Ulfa Ratna Sari Dewi Riano, Riza Rini Kurniasih, Rini Rinto Paputungan Rustami, Erus Safaruddin A Prasad Sahrudin Sahrudin Sahrudin, Sahrudin Sar Sardy Sar Sardy Sar Sardy Sari, Yessie Setyanto Tri Wahyudi Siti Nikmatin Sofian, Irmansyah Subyakto Subyakto SUBYAKTO SUBYAKTO Sugianto Arjo Sugianto, . Sugianto, . Sugianto, Sugianto Suhartanto, Muhammad Rahmad Sulaeman, Ahmad Sofyan Sulistioso Giat Sukaryo, Sulistioso Giat Sultan, Syamsu Supian, Latifah Sarah Supriyanto . Taqiyyah, Izzatut Tarcisius Rio Mardikanto Tatang Hidayat Wahyu Bambang Widayatno Wahyu Bambang Widayatno, Wahyu Bambang Wasmen Manalu Wasrin Syafii wirahadikesuma, ikhwan Wirahadikesuma, Ikhwan Wirahadikesuma Yayan Firmansyah Yessie Sari Yessie Widya Sari Yogi Waldingga Hasnedi Yulia Irdawati Yulia Sani Yulia Sani, Yulia Zetria Zikri