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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Indonesian Journal of Chemical Analysis (IJCA) Aspirasi : Publikasi Hasil Pengabdian dan Kegiatan Masyarakat Rafflesia Journal of Natural and Applied Sciences (RJNAS)
Indah Puspita Sari
Institut Teknologi Sumatera
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Materials Science & Nanotechnology Medicine & Pharmacology Public Health

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Sintesis dan Karakterisasi SiO2@APTES-IIP Sebagai Material Fungsional Penjerap Ion Kadmium(II) Indah Puspita Sari; Muhammad Bachri Amran
Indonesian Journal of Chemical Analysis (IJCA) Vol. 4 No. 1 (2021): Indonesian Journal of Chemical Analysis
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijca.vol4.iss1.art3

Abstract

Sintesis SiO2@APTES-IIP dan SiO2@APTES-NIP melalui proses sol-gel melibatkan 3-amounium propyl triethoxy silane (APTES) sebagai monomer fungsional, tetraethylorthosilicate (TEOS) sebagai crosslinker, Cd (II) sebagai cetakan dan SiO2 sebagai inti. Karakterisasi SiO2@APTES-IIP dan SiO2@APTES-NIP dilakukan dengan menggunakan FTIR. Hasil karakterisasi dengan FTIR menunjukkan beberapa puncak penting pada bilangan gelombang 2939 cm-1 dan 1411 cm-1 yang berasal dari vibrasi gugus C-H serta pada bilangan gelombang 1564 cm-1 yang berasal dari vibrasi gugus N-H hal tersebut membuktikan bahwa silika gel telah berhasil terfungsionalisasi oleh monomer APTES. Morfologi dan komponen penyusun material SiO2@APTES-IIP dianalisis menggunakan SEM dan EDS. Berdasarkan metode batch SiO2@APTES-IIP memiliki kapasitas retensi sebesar 7,34 mg/g pada kondisi optimum pH 7 dan waktu kontak 90 menit. Hasil analisis menunjukkan bahwa, model isoterm adsorpsi mengikuti model isoterm adsorpsi Langmuir.
Synthesis of Silver Nanoparticles with Reductant of Java Long Pepper Leaf Extract (Piper Retrofractum Vahl) and Its Application as a Mercury Detector Muhamad Allan Serunting; Prio Santoso; Indah Puspita Sari; Riyanto Widodo
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 18, No 1 (2021): March 2021
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (994.989 KB) | DOI: 10.14710/presipitasi.v18i1.99-107

Abstract

The synthesis of silver nanoparticles using the green chemistry concept utilizing Java long pepper leaf extract as a reducing agent has been successful. Silver nanoparticles were synthesized under optimum 1 mM silver nitrate concentration, 250 μL Java long pepper leaf extract, and 30 minutes under sunlight radiation. The silver nanoparticles formed can be confirmed by the change in the color of the solution from colorless to brownish red, indicating a reduction of Ag+ to Ag0. The Uv-vis spectrum showed a peak Surface Plasmon Resonance (SPR) at 441 nm. The FTIR spectrum showed that functional groups' vibrations in the Java Chili Leaf extract confirm that the phenol, alkaloid, and flavonoid compounds present in the extract act as reducing agents. TEM images show spherical silver nanoparticles with an average diameter of 17.65 nm. The potential of silver nanoparticles to detect Hg (II) metal is evidenced by a decrease in the color intensity of the silver nanoparticle solution along with the increasing concentration of Hg (II), which reacts back-oxidizing Ag0 to Ag+. The value of the correlation coefficient of the linear equation is 0.9807.
Nutmeg-Flavored Tea With Skin Health Advantaged Product To Empower Farmers In Hanau Berak Village, Pesawaran Regency Suryaneta Suryaneta; Indah Puspita Sari; Tikarahayu Putri; Iwan Syahjoko Saputra; Achmad Gus Fahmi
ASPIRASI : Publikasi Hasil Pengabdian dan Kegiatan Masyarakat Vol. 1 No. 6 (2023): November : Publikasi Hasil Pengabdian dan Kegiatan Masyarakat
Publisher : Asosiasi Periset Bahasa Sastra Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/aspirasi.v1i6.38

Abstract

: This article introduces a community service conducted by the PkM ITERA team in Hanau Berak Village, Pesawaran Regency, Lampung. Nutmeg, being a primary agricultural commodity in this region, reveals an underutilized surplus of nutmeg flesh, leading to organic waste accumulation. In response to the urgent need for minimizing organic waste and elevating the economic viability of nutmeg fruit flesh, this endeavor is driven by the realization that this waste represents an overlooked potential. Nutmeg flesh possesses intrinsic qualities, notably a rich concentration of antioxidants known for their role in promoting skin health, stabilizing cardiac rhythms, mitigating insomnia, alleviating angina, enhancing digestive processes, improving blood circulation, increasing appetite, and fortifying the immune system. The proposed solution involves the creation of nutmeg-flavored tea, intended to mitigate the issue of excess nutmeg fruit waste while simultaneously augmenting the economic worth of the produced merchandise. Thus, this initiative materializes as a strategy to optimize nutmeg fruit utilization, curtail waste generation, and amplify its market value. The Community Partnership Program administered by the ITERA team serves as a conduit for the enrichment of knowledge, insights, and competencies among local nutmeg farmers, empowering them to generate high-value commodities from an underexploited resource. The scope of activities encompasses the entire production process, extending to packaging design.
Green Synthesis Nanopartikel Perak (AgNPs) Menggunakan Bioreduktor Alami Ekstrak Daun Ilalang (Imperata cylindrica L) Annisaa Siti Zulaicha; Iwan Syahjoko Saputra; Indah Puspita Sari; M Alvien Ghifari; Yoki Yulizar; Yogi Nopiandi Permana; Sudirman Sudirman
RAFFLESIA JOURNAL OF NATURAL AND APPLIED SCIENCES Vol. 1 No. 1 (2021): April
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rjna.v1i1.15588

Abstract

Ilalang (Imperata cylindrica L) merupakan tumbuhan liar yang jarang dimanfaatkan. Daun ilalang mengandung senyawa bioaktif seperti alkaloid dan flavonoid. Senyawa flavonoid dapat digunakan sebagai zat reduktor alami dalam sintesis nanopartikel perak (AgNPs). Tujuan pada penelitian ini adalah sintesis nanopartikel perak menggunakan bioreduktor alami dari ekstrak daun ilalang. Sintesis nanopartikel perak menggunakan metode green synthesis (reduktor alam). Terbentuknya koloid nanopartikel perak terlihat secara visual ditandai dengan perubahan warna koloid menjadi coklat setelah penambahan ekstrak daun ilalang. Hasil UV-Vis menunjukkan nanopartikel perak memiliki puncak serapan pada panjang gelombang 420 nm dengan nilai absorbansi 1,9. FTIR memperlihatkan spektrum pengurangan puncak serapan nanopartikel perak pada bilangan gelombang 3356 cm-1. Hasil XRD dan PSA menunjukkan nanopartikel perak memiliki rata-rata ukuran kristal 19 nm dan distribusi ukuran partikel sebesar 1160 nm. Nanopartikel perak memiliki bentuk bulat dengan ukuran partikel 20 nm yang terlihat pada morfologi hasil TEM
Co-Authors Achmad Gus Fahmi Iwan Syahjoko Saputra M Alvien Ghifari Muhamad Allan Serunting Muhammad Bachri Amran Prio Santoso Riyanto Widodo Siti Zulaicha, Annisaa Sudirman Sudirman Suryaneta Suryaneta Tikarahayu Putri Yogi Nopiandi Permana Yoki Yulizar