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All Journal Jurnal Teknik ITS Jurnal Sains dan Seni ITS IPTEK Journal of Proceedings Series Abdimas IJOG : Indonesian Journal on Geoscience Journal of Environmental Engineering and Sustainable Technology JOURNAL OF NATURAL SCIENCES AND MATHEMATICS RESEARCH Journal of Natural Sciences and Mathematics Research Journal of Research and Technology Indonesian Journal of Chemistry Communications in Science and Technology Akta Kimia Indonesia Fullerene Journal of Chemistry Indonesian Journal on Geoscience Indonesian Journal on Geoscience Automotive Experiences Abdimas Altruis: Jurnal Pengabdian Kepada Masyarakat Sewagati
R.Y. Perry Burhan, R.Y. Perry
Department Of Chemistry Institut Teknologi Sepuluh Nopember
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry 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 Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Other

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Peningkatan Potensi Ekonomi Masyarakat Pesisir Desa Lohgung, Lamongan Melalui Pelatihan dan Pendampingan Pembuatan Sabun Antibakteri Rumput Laut dan Minyak Serai Sebagai Souvenir Baru Endah Mutiara Marhaeni Putri; Arga Dias Pratama; R.Y. Perry Burhan; M. Nadjib M; Supiana Dian Nurtjahyan; Nia Nurfitria; Perdana Ixbal Spanton
Sewagati Vol 3 No 3 (2019)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (912.054 KB)

Abstract

Kegiatan utama pengabdian masyarakat ini adalah berupa pelatihan dan pendampingan kepada petani rumput laut di Desa Lohgung, Kecamatan Brondong Lamongan tentang pembuatan sabun rumput laut tersebut. Pelatihan akan dilakukan dan disertai dengan demonstrasi dan praktik langsung pembuatan sabun oleh petani rumput laut. Setelah proses pelatihan pembuatan sabun, dilakukan pelatihan pengemasan sabun agar sabun yang dihasilkan dapat terlihat lebih cantik dan menarik untuk dijadikan souvenir. Sabun rumput laut akan dipromosikan sebagai salah satu oleh-oleh alternatif dari Lamongan ataupun digunakan sebagai souvenir pernikahan khas Lamongan. Proses pendampingan kepada petani rumput laut akan dilakukan dengan bekerjasama dengan mitra dari Universitas PGRI Ronggolawe, Tuban yang posisinya berdekatan dengan lokasi Abdimas.
Fabrication and characterization of fly ash-based geopolymer and its performance for immobilization of heavy metal cations Iqbal, Rendy Muhamad; Supriadi, Warih; Burhan, R.Y. Perry; Nurherdiana, Silvana Dwi; Hidayati, Ririn Eva; Subaer, Subaer; Bayuaji, Ridho; Fansuri, Hamzah
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.7.2.2022.868

Abstract

In this study, the geopolymer from fly ash as based-raw material has been examined on the ability of several heavy metal ions immobilization. The fly ash has been provided from PT IPMOMI which firstly analyzed the physical and chemical properties. Fly ash and heavy metals were mixed with an activator base until homogeneous, then cast into a cylindrical shape mold following ASTM C 39-86 and left for 7 days. After that, the geopolymer was characterized by SEM, FTIR, XRD, compressive strength test and TCLP. The diffractogram of PT. IPMOMI fly ash exhibited the existence of mullite, alumina and iron oxide phase, which were suitable with XRF result. From FTIR spectra, the vibration on finger print area appeared indicating the vibration of T-O-T from geopolymer network. The observation revealed that the addition of Pb2+ cations caused microcracking from SEM image and affected the compressive strength of the geopolymer. Sr2+ was an ion that was very easilyleached compared to other three ions, and it caused a weak interaction between Sr2+ and geopolymer network. The higher amount of metal ions into the geopolymer network reduced the compressive strength of geopolymer. Sr2+-geopolymer had a lower compressive strength compared to Pb2+, Cd2+, and Co2+.
Synthesis of Waste Cooking Oil Based Bioadditive Through Transesterification and Its Feasibility as Lubricity Enhancer Bioadditives for Low-Sulfur Diesel Fuel: Preliminary Investigation Zetra, Yulfi; Rizka, Rizka Berliana; Firdhausya, Talitha Fitra; Firdausa, Yunita Alfiyati; Burhan, R. Y. Perry
Automotive Experiences Vol 8 No 2 (2025)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.14461

Abstract

Desulfurization of diesel fuel, which is considered to reduce pollution, causes a decrease in its lubrication power. As a result, the friction between surfaces of the engine increases, and it wears out easily. Therefore, it is necessary to increase diesel fuel lubricity through the addition of additives. Waste cooking oil modified to 2-hydroxypropyl esters has a prospect to be a lubricity-enhancing bioadditive. Polar and non-polar groups contain in 2-hydroxypropyl ester can form a bilayer on the surface of the engine that prevents friction between metal components. Synthesis of 2-hydroxypropyl esters was carried out by transesterification at 150°C for 10 hours. The mole ratio of oil to propylene glycol was adjusted to 1:7 with the loading of CaO 7% w/w oil as catalyst. The yield of the product is 88.89%. The product was identified by Gas Chromatography-Mass Spectrometry (GC-MS). The result showed that 2-hydroxypropyl palmitate and 2-hydroxypropyl oleate have dominant relative abundance with percentages of 42.46% and 57.44%, respectively. According to the molecular review as preliminary investigation, this compound has the potential to deliver better lubricity than ester-only biolubricants. Therefore, 2-hydroxypropyl ester can be proposed as an alternative bioadditive for low-sulfur diesel fuel lubricity enhancer.
Synthesis and Physicochemical Characterization of Castor Oil Methyl Ester Batari, Nirmala Puteri; Zetra, Yulfi; Burhan, R.Y. Perry; Firdhausya, Talitha Fitra; Firdausa, Yunita Alfiyati; Putri, Rizka Berliana
Jurnal Kimia Fullerene Vol 10 No 2 (2025): Fullerene Journal Of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v10i2.751

Abstract

The increasing consumption of biodiesel has led to the continued development of biodiesel production using oils that do not compete with food, for example castor oil. This study aims to synthesize and characterize castor oil methyl ester (COME) as biodiesel. The FFA of castor oil is 0.66%, so that a transesterification reaction with methanol using a KOH catalyst can be carried out. The reaction was characterized by Thin Layer Chromatography (TLC) and Gas Chromatography-Mass Spectrometry (GCMS). The highest content of COME is methyl ricinoleate at 65.481%. followed by FFA at 0.4%, a cloud point of -9°C, a pour point of -18°C, and a density at 40°C of 887.2 kg/m3 which is in accordance with SNI. Thus, COME has the potential as a biodiesel candidate.
Co-Authors Abduh Muharram Chairacita Adam Wiryawan Agus Wahyudi Agus Wahyudi Agus Wahyudi Agus Wahyudi Amirotul Ula Anis Febriati Arga Dias Pratama Arizal Firmansyah Arizal Firmansyah Aufa Fadhliah Aulia, Wulan Awalia Wardatil Firdaus Batari, Nirmala Puteri Christoffel S I Maweikere Didik Prasetyoko Dyah Nirmala Edi, Eduardus Endah Mutiara Endah Mutiara Marhaeni Putri Endah Mutiara Marhaeni Putri Fahimah Martak Fina Riandra Firdausa, Yunita Alfiyati Firdhausya, Talitha Fitra Gunawan, Triyanda Hamzah Fansuri Hariyanto, Rhiby Ainur Basit Hidayati, Ririn Eva Imam B. Sosrowidjojo Iqbal, Rendy Muhamad Jein Jelsi Lamia Kusuma, Hendra Siswanto Lukman Atmaja Lukman Sugiharto Wijaya M. Nadjib M M. Nadjib Mujahid M. Rachimoellah M. Rachimoellah Maulida Fitriyyah Meliana Wahyuningtyas Miranti Widi Puspita Ayu Mujahid, M. Nadjib Mujahid, Muhammad Nadjib Nadjib, Muhammad Nia Nurfitria Novesar Jamarun Nugraheni, Zjahra Vianita Nurul Jadid Pusparatu Pusparatu Putri, Endah Mutiara Marhaeni Putri, Rizka Berliana R. Arizal Firmansyah Ramadhan, Zein Firdaus Rhiby Ainur Basit Hariyanto Riandra, Fina Riandra, Fina Ridho Bayuaji Rizka, Rizka Berliana Rurini Retnowati Sholihah, Sovia Masfuri Walidatus Silvana Dwi Nurherdiana Sosrowidjojo, Imam B. Sosrowidjojo, Imam B. Sovia Masfuri Walidatus Sholihah Spanton, Perdana Ixbal Subaer - Supiana Dian Nurtjahyan Supriadi, Warih Syekhfani Syekhfani Titik Andriani Wahyu Prasetyo Utomo Wijaya, Lukman Sugiharto Zein Firdaus Ramadhan Zetra, Yulfi Zetra, Yulfi Zjahra Vianita Zjahra Vianita Nugraheni