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All Journal Reaktor Komunikasi Fisika Indonesia Journal of Aceh Physics Society Spektra: Jurnal Fisika dan Aplikasinya Communications in Science and Technology Jurnal Fisika Indonesia Dinamika Lingkungan Indonesia Indonesian Journal of Physics (IJP) Aceh International Journal of Science and Technology Jurnal Material dan Energi Indonesia
Yanuar Hamzah
Jurusan Fisika FMIPA Universitas Riau, Pekanbaru, Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Astronomy Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Physics

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Cigarette filter butts-derived activated carbon with free binder electrode design for solid-state supercapacitor application: From hazardous waste to solid-state supercapacitor Hamzah, Yanuar; Taer, Erman; Apriwandi, Apriwandi; Supian, Faridah Lisa; Mozaffari, Niloofar; Mozaffari, Nastaran
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.8.2.2023.1252

Abstract

The aim of this research is to formulate activated carbon monolith from hazardous waste of cigarette filter butts (CFB) for electrode material monolith design in solid-state supercapacitor application. Potassium hydroxide (KOH) was selected for activation. The ratio of CFB to KOH varied in terms of weight between 1:2 and 1:4, thereby obtaining activated cigarette filter carbon (ACFC). The carbon that has been obtained is designed to be solidly in the form of an additive-free monolith. Monolith-activated carbon is physically characterized to examine thermal decomposition profiles (pre-carbonized), structure, composition, morphology, surface area adsorption, and electrochemical measurements. The optimum precursor was marked with high wettability with self-O-doped of 5.44%.in carbon content of 94.56%. Activated carbon electrodes prepared from ACFCs showed an optimum specific capacitance of ~87.17 F g-1, which is a more ecologically responsible method of producing supercapacitors.
Study of the structural, optical, and morphological properties of ZnO nanoparticle biosynthesis using betel leaf extract as a bioreductant Hamzah, Yanuar; Kartika, Nursiti Sari; Umar, Lazurdi
Indonesian Physics Communication Vol 21, No 3 (2024)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jkfi.21.3.227-232

Abstract

The biosynthesis of zinc oxide nanoparticles (ZnO) is extensively studied because of its eco-friendly and simple method. Piper ornatum is abundant in Indonesia, and the phytochemical content of Piper ornatum leaves has the potential to be a reductor. The study aims to study the role of Piper ornatum in biosynthesis and the characteristics of the zinc oxide nanoparticles. The sample variations in this study were the volume of Piper ornatum and the precursor solution of zinc nitrate hexahydrate Zn(NO3)2·6H2O in proportions of 1:1, 1:5, and 1:10. Characterizations performed include UV-Vis spectroscopy, X-ray diffraction (XRD), scanning electron microscopy, energy dispersive X-ray spectroscope and blue methylene degradation test. UV-Vis spectroscopy of all samples showed peak absorption at the interval of 250 – 330 nm, which indicates that ZnO nanoparticles have already formed. The results of characterization using XRD indicated the degree of crystallinity of the ZnO nanoparticles is not perfect because the crystal field (100) or the highest diffraction peak has a very large full width at half maximum value of 0.8187°. Characterization results using SEM indicate an inhomogeneous morphology and the presence of zinc oxide nanoparticle agglomeration where particle size distribution is at an interval of 170 – 758 nm.
Synthesis and characterization of optical properties of barium titanate (BaTiO3) with the addition of moringa, banana, matoa, and ketapang leaves extracts Dewi, Rahmi; Apriwandi, Apriwandi; Hamzah, Yanuar; Sari, Eza Tirta; Butarbutar, Kheny Kernila; Putri, Nadja Melika; Nathania, Nazhiwa; Aritonang, Surya Ardika; Hartini, Titin; Hayati, Fitri; Maslyah, Maharani Nur; Sawitri, Seli Novalin; Komariah, Siti; Nursyahara, Septia; Nuraini, Nasywa; Aisy, Rihla Datul; Safira, Putri; Rusmanianty, Rusmanianty; Pratiwi, Dinda; Adela, Adela; Pasaribu, Veny Sriulina; Azhara, Vina Naomi; Febrita, Ayang
Indonesian Physics Communication Vol 22, No 2 (2025)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jkfi.22.2.169-174

Abstract

Environmentally friendly synthesis of barium titanate (BaTiO3) nanoparticles was conducted using natural leaf extracts of Moringa oleifera, Musa spp., Pometia pinnata, and Terminalia catappa as green dopants via the sol-gel method. This study aims to evaluate the influence of different leaf extracts on the optical properties of BaTiO3 characterized by UV-Vis spectroscopy. Each sample exhibited distinct absorption spectra, reflecting variations in phytochemical composition among the extracts. The results showed that Terminalia catappa and Pometia pinnata extracts produced the highest band gap values, 3.36 eV and 3.35 eV respectively, indicating optical activity in the ultraviolet region. Musa spp. extract resulted in a band gap of 2.81 eV, while Moringa oleifera extract yielded the lowest value of 2.59 eV. These differences suggest that the type of plant extract significantly affects the optical characteristics of the synthesized BaTiO3. This research highlights the potential use of local biomass in the development of functional BaTiO3-based materials through green synthesis approaches.
Co-Authors Adela, Adela Aisy, Rihla Datul Akrajas Ali Umar Apriwandi Apriwandi . Ariswan Ariswan Aritonang, Surya Ardika Awitdrus Awitdrus, Awitdrus Azhara, Vina Naomi Butarbutar, Kheny Kernila Dewi Ramayani Dian Putri Oktavia Dian Putri Oktavia, Dian Putri Erman Taer Erwin Erwin Erwin Erwin Febrita, Ayang Fitri Hayati Iwantono Iwan Barnawi Jimmy Copriady Kartika, Nursiti Sari Krisman Krisman Lazuardi Lazuardi Lazuardi Umar Lazuardi Umar Liong Nyuk Firdaus Maria Sonya Nauli Nainggolan Maslyah, Maharani Nur Maya Sari Mega Wati Siregar Melinda Vivi Mozaffari, Nastaran Mozaffari, Niloofar Muhammad Mardhiansyah Nathania, Nazhiwa Novi Yanti Nuraini, Nasywa Nursyahara, Septia Pasaribu, Veny Sriulina Pratiwi, Dinda Putri, Nadja Melika Rahmi Dewi Rahmondia N. Setiadi Rahmondia N.S ' Rakhmawati Farma Rati, Yolanda Rini, Ari Sulistyo Rosman Parningotan Rusmanianty, Rusmanianty Safira, Putri Salomo Salomo Salomo Salomo Sari, Eza Tirta Sawitri, Seli Novalin Siti Komariah Sugiyanto Sugiyanto Supian, Faridah Lisa Susi ' Tengku Emrinaldi Tengku Said Hussain Shahab Tetty Marta Linda Titin Hartini Umar, Lazurdi Usman Malik Usman Malik Usman Usman Yenny Desvita Zulfan Saam