Purwanto, Mochammad
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Fabrication and Characterization of Chitosan/N-Phthaloyl Composite Membrane for DMFC Application Nugraeni, Christine Dyta; Atmaja, Lukman; Hayati, Nur; Purwanto, Mochammad; Santoso, Mardi; Kusumawati, Yuli
Jurnal Riset Kimia Vol 12, No 2 (2021): September
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v12i2.408

Abstract

Modified chitosan membrane is one of the promising membranes for polymer electrolyte membrane. Chitosan/N-phthaloyl chitosan composite membranes were fabricated to obtain high proton conductivity and low methanol permeability. Membranes were fabricated by casting method and solvent evaporation. Surface morphology, mechanical analysis, methanol permeability, and proton conductivity were used to characterize the overall properties. FT-IR spectra exhibited the presence of interaction of chitosan and n-phthaloyl/chitosan. SEM analysis showed that the surface roughness of composite membrane increases as the n-phthaloyl loading increases. The highest proton conductivity of synthesized membrane is at 2.4 mS.cm-1 and is higher than pristine chitosan membrane at 1.6 mS.cm-1. Moreover, with n-phthaloyl/chitosan addition, the methanol permeability was also improved. The correlation between proton conductivity and methanol permeability in composite membranes suggests that the blend has its potential in DMFC application.
TRANSFER TEKNOLOGI MEMBRAN PENGOLAHAN AIR MINUM KAYA OKSIGEN DI PONDOK PESANTREN: UPAYA MENINGKATKAN KUALITAS AIR MINUM DI LINGKUNGAN PENDIDIKAN Purwanto, Mochammad; Hidayat, Jefri Pandu; Rini, Intan Dwi Wahyu Setyo; Kiswoyo, Didik
JMM (Jurnal Masyarakat Mandiri) Vol 9, No 1 (2025): Februari
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v9i1.27726

Abstract

Abstrak: Teknologi membran menjadi solusi yang efisien dan ramah lingkungan, sehingga berpotensi dikembangkan sebagai sistem pengolahan air minum kaya oksigen (AMIKO) di Pondok Pesantren. Mitra pada program ini adalah Pondok Pesantren Syaichona Cholil Balikpapan yang memiliki 554 santri yang tersebar pada berbagai jenjang pendidikan formal, diantaranya Taman Kanak-Kanak (TK), Madrasah Ibtidayah (MI), Sekolah Menengah Pertama (SMP), Sekolah Menengah Atas (SMA), Sekolah Menengah Kejuruan (SMK) dan Sekolah Tinggi Ilmu Tarbiyah (STIT). Program ini bertujuan untuk memenuhi kebutuhan air minum berkualitas bagi santri dan ustadz/ustadzah, mendukung kesehatan, dan kelancaran kegiatan belajar mengajar. Sistem ini, selain dapat memenuhi kebutuhan air minum yang sehat, juga dapat menjadi peluang unit usaha mandiri yang dikelola oleh pesantren. Dengan demikian, program ini tidak hanya meningkatkan kesehatan para santri tetapi juga memberikan keterampilan dan kemandirian dalam pengelolaan air minum. Metode yang digunakan pada program ini adalah sosialisasi pentingnya air minum sehat dan pelatihan teknis penggunaan alat sistem pengolahan air minum berbasis teknologi membran. Kegiatan sosialisasi telah dilakukan kepada para santri dan ustadz/ustadzah berkaitan dengan pentingnya air minum yang berkualitas beserta karakteristiknya dan penjelasan tentang sistem pengolahan air minum berbasis teknologi membran. Evaluasi yang digunakan untuk mengetahui perkembangan mitra adalah dengan melalui pembagian kuesioner. Hasil kegiatan ini menunjukkan adanya peningkatan pemahaman peserta setelah dilaksanakan sosialisasi pentingnya air minum sehat sebesar 32% dan sistem pengolahan air minum berbasis teknologi membran sebesar 96%.Abstract: Membrane technology is an efficient and environmentally friendly solution, so it has the potential to be developed as an oxygen-rich drinking water treatment system (AMIKO) in Islamic Boarding Schools. The partner in this program is the Syaichona Cholil Balikpapan Islamic Boarding School which has 554 students spread across various levels of formal education, including Kindergarten (TK), Madrasah Ibtidayah (MI), Junior High School (SMP), Senior High School (SMA), Vocational School (SMK) and Tarbiyah College of Science (STIT). This program aims to meet the need for quality drinking water for students and ustadz/ustadzah, support health, and smooth teaching and learning activities. This system, in addition to being able to meet the need for healthy drinking water, can also be an opportunity for an independent business unit managed by the Islamic boarding school. Thus, this program not only improves the health of students but also provides skills and independence in managing drinking water. The methods used in this program are socialization of the importance of healthy drinking water and technical training on the use of membrane technology-based drinking water treatment system tools. Socialization activities have been carried out to students and ustadz/ustadzah related to the importance of quality drinking water along with its characteristics and an explanation of the membrane technology-based drinking water treatment system. The evaluation used to determine the development of partners is through the distribution of questionnaires. The results of this activity showed an increase in participant understanding after the socialization of the importance of healthy drinking water by 32% and the membrane technology-based drinking water treatment system by 96%.
INOVASI SABUN BERKELANJUTAN BERBAHAN DASAR MINYAK JELANTAH Lestari, Rizka; Purwanto, Mochammad; Sari, Thalia Winda; Khairunnisa, Aulia; Gunawan, M. Irwan
JMM (Jurnal Masyarakat Mandiri) Vol 9, No 1 (2025): Februari
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v9i1.27911

Abstract

Abstrak: Pengolahan limbah minyak jelantah merupakan salah satu metode yang digunakan sebagai upaya mengurangi jumlah buangan sampah organik. Limbah minyak jelantah yang langsung dibuang melalui sink dan berakhir ke badan air di selokan akan mengakibatkan banyak dampak negatif baik bagi masyarakat ataupun lingkungan. Pengolahan limbah minyak jelantah menjadi sabun memiliki dampak langsung dalam mengurangi volume sampah organik sekaligus bertujuan untuk meningkatkan keterampilan warga. Hal ini dapat mendorong pengembangan ekonomi kreatif secara berkelanjutan bagi masyarakat. Kegiatan pengabdian dihadiri oleh seluruh anggota PKK RT.40, Gunung Samarinda, Kota Balikpapan, dengan jumlah peserta sekitar ± 25 orang. Selama kegiatan, metode yang diterapkan adalah praktik langsung yang dilanjutkan dengan evaluasi dan monitoring pasca pelatihan bersama warga. Kuesioner digunakan sebagai alat evaluasi untuk mengukur peningkatan keberhasilan kegiatan yang dilakukan. Berdasarkan hasil kuesioner, terjadi peningkatan pemahaman serta keterampilan warga sebesar 30%. Selain itu 80% warga menyatakan bahwa proses pembuatan sabun dari minyak jelantah sangat menarik, mudah dipraktikkan dan bahan-bahannya mudah didapatkan dipasaran. Abstract: The processing of used cooking oil waste is one of the following methods used as an effort to reduce the amount of organic waste disposal. Direct disposal of used cooking oil waste through sinks and into water bodies or sewers can have significant negative impacts on both the community and the environment. Processing used cooking oil waste into soap has a direct impact on reducing the volume of organic waste as well as improving the skills of the community. The process aims to enhance the skills of the residents. This can encourage the development of a sustainable creative economy for the community. All members of PKK RT.40, Gunung Samarinda, Balikpapan City, attended the community service activity, with a total of approximately 25 participants. The activity employed a hands-on practice method, followed by a post-training evaluation and community monitoring. We used questionnaires as an evaluation tool to gauge the success of the activities we carried out. The questionnaire showed a 30% increase in community understanding and skills. In addition, 80% residents stated that the process of making soap from used cooking oil is very interesting, easy to practice and the ingredients are easily available in the market.