Studi Aplikasi Biomaterial Kitosan sebagai Sumber Energi Alternatif untuk Peralatan Elektronik Output Rendah Ramah Lingkungan

Ardiansyah, Amin Athok (2026) Studi Aplikasi Biomaterial Kitosan sebagai Sumber Energi Alternatif untuk Peralatan Elektronik Output Rendah Ramah Lingkungan. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penelitian ini bertujuan menganalisis potensi biomaterial kitosan yang berasal dari limbah kulit udang sebagai material bio-piezoelektrik untuk aplikasi energy harvesting pada perangkat elektronik berdaya rendah. Film kitosan difabrikasi menggunakan metode solvent casting dengan melarutkan 1 gram kitosan ke dalam campuran 30 mL asam format dan 30 mL aquades, kemudian diaduk menggunakan magnetic stirrer pada suhu 60°C dan kecepatan 400 rpm selama 2–3 jam hingga homogen. Larutan kemudian dicetak menggunakan cawan dan dikeringkan hingga terbentuk film kitosan. Pengujian dilakukan menggunakan alat pemanen energi dengan variasi konsentrasi NaOH sebesar 10%, 15%, dan 17,5%, rasio kitosan:ZnO sebesar 100:0, 90:10, 70:30, dan 50:50, serta konfigurasi rangkaian dengan dan tanpa kapasitor serta dengan dan tanpa material piezoelektrik anorganik sebagai pembanding. Parameter yang dianalisis meliputi tegangan, arus, dan daya keluaran. Hasil penelitian menunjukkan bahwa konfigurasi terbaik diperoleh pada penggunaan kapasitor tanpa material piezoelektrik anorganik dengan konsentrasi NaOH 15% dan rasio kitosan:ZnO 90:10 yang menghasilkan tegangan maksimum rata-rata sebesar 1,22 V, arus sebesar 1,525 mA, dan daya maksimum sebesar 1,86 mW. Penggunaan kapasitor terbukti meningkatkan keluaran listrik dibandingkan konfigurasi tanpa kapasitor, sedangkan penambahan material piezoelektrik anorganik belum memberikan peningkatan performa yang signifikan. Hasil analisis menunjukkan bahwa daya keluaran film kitosan telah berada pada kisaran kebutuhan beberapa mini sensor berdaya rendah, namun tegangan yang dihasilkan masih berada di bawah tegangan operasi sensor sehingga memerlukan peningkatan melalui penyusunan beberapa film secara seri atau penggunaan rangkaian pengelolaan daya. Penelitian ini menunjukkan bahwa biomaterial kitosan memiliki potensi sebagai sumber energi alternatif yang ramah lingkungan untuk aplikasi self-powered sensor.
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This study aims to investigate the potential of chitosan biomaterial derived from shrimp shell waste as a bio-piezoelectric material for energy harvesting applications in low-power electronic devices. Chitosan films were fabricated using the solvent casting method by dissolving 1 g of chitosan in a mixture of 30 mL formic acid and 30 mL distilled water, followed by magnetic stirring at 60°C and 400 rpm for 2–3 hours until a homogeneous solution was obtained. The solution was then cast into a mold and dried to produce chitosan films. Electrical performance was evaluated using an energy harvesting device with NaOH concentrations of 10%, 15%, and 17.5%, chitosan:ZnO ratios of 100:0, 90:10, 70:30, and 50:50, and circuit configurations with and without a capacitor, as well as with and without inorganic piezoelectric material for comparison. The measured parameters included output voltage, current, and power. The best performance was achieved using the capacitor configuration without inorganic piezoelectric material at a NaOH concentration of 15% and a chitosan:ZnO ratio of 90:10, producing an average maximum voltage of 1.22 V, an output current of 1.525 mA, and a maximum power of 1.86 mW. The capacitor significantly improved the electrical output compared with the non-capacitor configuration, whereas the addition of inorganic piezoelectric material did not provide a significant performance improvement. The generated power was sufficient to operate several low-power miniature sensors; however, the output voltage remained below the minimum operating voltage required by these devices. Therefore, connecting multiple chitosan films in series or integrating a power management circuit is recommended for practical implementation. These findings demonstrate that chitosan biomaterial has promising potential as an environmentally friendly alternative energy source for self-powered sensor applications.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Biomaterial, Energy Harvester, Kitosan, Piezoelektrik, Solvent Casting, Biomaterial, Energy harvester, Chitosan, Piezoelectric, Solvent Casting.
Subjects:	V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM471 Ships--Electric equipment
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	Amin Athok Ardiansyah
Date Deposited:	03 Aug 2026 02:49
Last Modified:	03 Aug 2026 02:50
URI:	http://repository.its.ac.id/id/eprint/141830

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