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All Journal Darmabakti: Jurnal Pengabdian kepada Masyarakat Sorption Studies
Lestari, Aura Puja
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Health Professions Materials Science & Nanotechnology Mathematics Public Health

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Kolaborasi kampus–industri dalam program magang: Implikasi bagi pengembangan PT Dahana Lestari, Aura Puja; Haidar, Muhammad Hilman; Gunaryo, Gunaryo; Apriliyanto, Yusuf Bramastya; Alivia, Latisa Stefi; Anggara, Adrian Rezki
Darmabakti: Jurnal Pengabdian kepada Masyarakat Vol. 2 No. 1 (2025): November
Publisher : CV Rezki Media

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56003/darmabakti.v2i1.659

Abstract

Program magang merupakan salah satu bentuk implementasi pembelajaran berbasis pengalaman (experiential learning) yang dirancang untuk menjembatani kesenjangan antara teori yang diperoleh di bangku perkuliahan dengan praktik nyata di dunia kerja. Penelitian ini bertujuan untuk mengevaluasi kinerja mahasiswa magang dalam pelaksanaan program Magang Generasi Bertalenta (MAGENTA) BUMN di PT Dahana. Evaluasi ini dilakukan guna memperoleh gambaran menyeluruh mengenai kompetensi, kedisiplinan, tanggung jawab, serta kemampuan adaptasi mahasiswa selama kegiatan magang berlangsung. Metode penelitian yang digunakan adalah metode deskriptif kualitatif dengan pendekatan survei. Instrumen pengumpulan data berupa kuesioner tertutup yang disebarkan kepada pembimbing lapangan selaku penilai kinerja mahasiswa. Data yang diperoleh dianalisis untuk menilai efektivitas program magang dalam meningkatkan kemampuan profesional mahasiswa serta kontribusinya terhadap lingkungan kerja. Hasil penelitian menunjukkan bahwa secara umum mahasiswa magang memiliki kinerja yang baik, ditandai dengan tingkat kedisiplinan yang tinggi, rasa tanggung jawab terhadap tugas, dan kemampuan adaptasi yang cepat terhadap budaya kerja perusahaan. Program MAGENTA di PT Dahana terbukti memberikan dampak positif terhadap pengembangan kompetensi mahasiswa serta memperkuat hubungan kemitraan antara perguruan tinggi dan dunia industri.
Synthesis of Fe₃O₄ using the Co-precipitation Method with Temperature and Time Treatment as Methylene Blue Adsorbent Kuntjahjono, Mayang Fauziah Putri; Lestari, Aura Puja; Nurhalimah, Siti; Sarweswara, Wikrama; Purba, Farelino Oktavianus; Kaunang, Andrew Miracle; Sasongko, Nugroho Adi; Rahmat Basuki
Sorption Studies Vol. 1 No. 2 (2025): Sorption Studies, December 2025
Publisher : Indonesian Scholar Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55749/ss.v1i2.94

Abstract

Magnetite nanoparticles (Fe₃O₄) possess unique magnetic properties and are widely applied in various fields such as biomedical technology, environmental remediation, and material separation. This study reports the synthesis of Fe₃O₄ using the co-precipitation method under varying conditions of temperature, reaction time, and atmospheric exposure (open vs. closed system). Ferric and ferrous salts were reacted with ammonium hydroxide under controlled heating at 70°C and 80°C for 60 minutes. The synthesized materials were evaluated through visual color inspection, qualitative magnetic response, yield efficiency, and magnetic load-bearing capacity. The results showed that a closed system at 80°C produced the most optimal Fe₃O₄, indicated by a deep black color, strong magnetic attraction (149.86 mN), and a yield of 92.5%. Comparatively, open systems led to partial oxidation of Fe², resulting in less magnetic phases like maghemite or hematite. The findings confirm that controlling synthesis parameters, especially atmospheric exposure and temperature, significantly influences the purity, particle uniformity, and magnetic strength of Fe₃O₄ nanoparticles, highlighting the importance of optimized synthesis for practical applications.
Co-Authors Alivia, Latisa Stefi Anggara, Adrian Rezki Gunaryo, Gunaryo Haidar, Muhammad Hilman Kaunang, Andrew Miracle Kuntjahjono, Mayang Fauziah Putri Nugroho Sasongko Jati, Nugroho Sasongko Purba, Farelino Oktavianus Rahmat Basuki Sarweswara, Wikrama Siti Nurhalimah Yusuf Bramastya Apriliyanto