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All Journal Jurna Beta Kimia Jurnal Bakti Nusantara
Hasibuan, Adelia Yesya Putri
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Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Medicine & Pharmacology Other

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Upaya Peningkatan Literasi Bahan Tambahan Pangan dalam Jajanan Kemasan melalui Sosialisasi Interaktif Hasibuan, Adelia Yesya Putri; Moneteringtyas, Prisca Caesa; Tarigan, Ayu Syufiatun Br; Rahmat, Nahzim
Jurnal Bakti Nusantara Vol. 2 No. 3 (2025): Jurnal Bakti Nusantara
Publisher : Pustaka Media Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63763/jbn.v2i3.92

Abstract

Rendahnya kesadaran masyarakat terhadap bahan tambahan pangan dan zat kimia dalam jajanan kemasan dapat menimbulkan risiko kesehatan, khususnya di kalangan anak-anak dan orang tua di wilayah pedesaan. Program pengabdian kepada masyarakat ini bertujuan untuk meningkatkan literasi kimia pangan melalui kegiatan sosialisasi edukatif yang interaktif. Kegiatan ini dilaksanakan di Desa Bagan Serdang, Kecamatan Pantai Labu, Kabupaten Deli Serdang, Provinsi Sumatera Utara. Dengan menggunakan pendekatan riset tindakan, dilakukan tes awal dan tes akhir untuk mengevaluasi efektivitas intervensi. Hasil evaluasi menunjukkan adanya peningkatan signifikan dalam tingkat pengetahuan peserta, di mana hampir seluruh peserta memperoleh skor tertinggi pada tes akhir. Tingkat pemahaman tinggi dapat dilihat pada tes akhir yang mencapai 100% yaitu terdapat pada soal nomor 1, 2, 4, 5, 7, dan 9, sedangkan yang tidak mencapai 100%, hanya terdapat pada soal nomor 3 (86,70%), nomor 6 (73,33%), nomor 8 (80%), dan nomor 10 (93,30%). Sosialisasi interaktif telah berhasil meningkatkan pemahaman mitra tentang bahan tambahan pangan dalam jajanan kemasan.
XRD Characterization and Structural Insights of Activated Carbon-ZnO Composite for Potential Photocatalytic Applications Lestari, Devi; Masriah, Imas; Hasibuan, Adelia Yesya Putri; Pratiwi, Pina Budiarti
Jurnal Beta Kimia Vol 5 No 2 (2025): Volume 5 Number 2, November 2025
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jbk.v5i2.25811

Abstract

This study presents a structural characterization of an activated carbon-ZnO (AC/ZnO) composite synthesized via a simple sol-gel route using activated carbon derived from oil palm empty fruit bunches (OPEFB), introducing a sustainable biomass based carbon source as a functional photocatalytic support. X-ray diffraction (XRD) analysis revealed sharp diffraction peaks corresponding to the wurtzite ZnO phase, together with a broad amorphous carbon halo, confirming the successful incorporation of crystalline ZnO within the carbon matrix. Microstructural parameters, including crystallite size, lattice strain, and dislocation density, indicate nanoscale structural ordering accompanied by beneficial defect sites that promote charge trapping. Structural interpretation was further validated through Rietveld refinement, which confirmed a single-phase ZnO structure with good fitting quality, demonstrating the structural stability and compatibility of ZnO within the carbon framework. Photocatalytic evaluation using methylene blue showed a higher removal efficiency under natural sunlight (95%) compared to dark adsorption (85%), evidencing a synergistic adsorption-photocatalysis mechanism. The novelty of this work lies in integrating low temperature sol–gel synthesis, waste derived activated carbon, and XRD based microstrain and refinement analyses to establish a clear structure–function relationship in AC/ZnO composites. These findings highlight the practical potential of this material as a low cost, scalable, and solar responsive photocatalyst for sustainable wastewater treatment applications, particularly in resource limited and tropical regions.
Co-Authors Ayu Syufiatun Tarigan Devi Lestari Imas Masriah Pratiwi, Pina Budiarti Prisca Caesa Moneteringtyas Rahmat, Nahzim