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All Journal Chemistry Indonesian Journal of Chemical Research INTEGRITAS : Jurnal Pengabdian
Vidyantari, Lyra
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Economics, Econometrics & Finance Education Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Social Sciences

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EDUKASI PEMANFAATAN SERAI SEBAGAI BAHAN ALAMI UNTUK SPRAY ANTI NYAMUK DAN PENGEMBANGAN WARNA TEKSTIL DARI DAUN MANGROVE Saputri, Asih; Fasya, Elfira Rizki Oktaviana; Vidyantari, Lyra; Permatasari, Tasya Belinda; Rahmatin, Leily Suci
INTEGRITAS : Jurnal Pengabdian Vol 8 No 2 (2024): AGUSTUS - DESEMBER
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat - Universitas Abdurachman Saleh Situbondo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36841/integritas.v8i2.5000

Abstract

Kegiatan pengabdian masyarakat melalui program Kuliah Kerja Nyata Tematik (KKNT) Bela Negara Universitas Pembangunan Nasional Veteran Jawa Timur bertujuan untuk memanfaatkan serai wangi sebagai bahan alami spray anti nyamuk dan daun mangrove untuk pewarna tekstil di Kelurahan Kejawan Putih Tambak, Surabaya. Metode yang diterapkan meliputi uji coba dan implementasi, sosialisasi dan edukasi, demonstrasi pembuatan produk, pengemasan, dan diskusi dengan masyarakat. Hasil kegiatan menunjukkan bahwa spray anti nyamuk dari serai wangi efektif mengusir nyamuk dan pewarna tekstil dari daun mangrove menghasilkan warna yang stabil dan tahan lama. Respon masyarakat sangat positif terhadap solusi alami ini, yang menawarkan alternatif ramah lingkungan dibandingkan produk kimia. Keberhasilan ini membuka peluang untuk pengembangan lebih lanjut dalam pemanfaatan bahan lokal untuk meningkatkan kualitas hidup masyarakat secara berkelanjutan.
Utilization of Glass Waste in Silica Gel Production Using Sodium Hydroxide (NaOH) with The Sol-Gel Method Rahmawati, Belinda Tri Setya; Vidyantari, Lyra; Sumada, Ketut
Indonesian Journal of Chemical Research Vol 13 No 2 (2025): Edition for September 2025
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2025.13-bel

Abstract

The utilization of glass waste as raw material for silica gel using the sol-gel method to produce high-quality products while reducing inorganic waste. Silica is extracted from glass waste using sodium hydroxide (NaOH), then converted into sodium silicate. Silica gel synthesis is carried out by varying two main parameters: the sodium silicate: water ratio (1:1, 1:2, 1:3, 1:4, and 1:5) and sulfuric acid concentration (1.5 M, 2 M, 2.5 M, 3 M, and 3.5 M). Product characterization was performed using XRF for SiO₂ content, XRD for amorphous structure, and BET for specific surface area. The highest SiO₂ content of 86.83% was obtained at a ratio of 1:5 and H₂SO₄ concentration of 3.5 M. In contrast, the highest specific surface area of 186.82 m²/g was achieved at the same ratio and 3 M. These conditions highlight the balance between sufficient acid strength to remove metallic and organic impurities and adequate dilution to maintain effective mass transfer, resulting in a SiO₂ purity of up to 99%. These results highlight the high potential of glass waste as an alternative silica source for adsorbent and catalyst support applications.
Co-Authors Fasya, Elfira Rizki Oktaviana Ketut Sumada Caecillia Pujiastuti Permatasari, Tasya Belinda Rahmatin, Leily Suci Rahmawati, Belinda Tri Setya Saputri, Asih