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All Journal Journal of Physics and Its Applications PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL)
Tiawati, Nia
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Astronomy Earth & Planetary Sciences Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics Other

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SINTESIS DAN ANALISIS STRUKTUR KRISTAL NANOPARTIKEL ZNO MENGGUNAKAN METODE PRESIPITASI PH-12 Tiawati, Nia; Sugihartono, Iwan; Alaih, Akhmad Futukhillah Fataba; Triyono, Djoko
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol. 12 (2024): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2023
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/03.1201.FA28

Abstract

Abstrak Nanopartikel ZnO telah disintesis melalui metode presipitasi dengan pH-12 dan larutan prekursor dipanaskan pada suhu 60℃ selama proses pengadukan. Selanjutnya sampel yang diperoleh, diberi perlakuan annealing selama 4 jam dengan suhu 400℃. Karakterisasi menggunakan teknik Difraksi Sinar-X (XRD) pada sampel telah dilakukan untuk mengetahui fase yang terbentuk dan struktur kristal. Berdasarkan Inorganic Crystal Structure Database (ICSD) nomor 98-018-0050, pola Difraksi Sinar-X (XRD) dari nanopartikel ZnO memiliki struktur wurtzit heksagonal polikristalin dengan space group P63mc. Ukuran kristalit pada bidang (100), (002), (101), (102), (110), (103), (200), (112), (201) berturut-turut adalah 33.04 nm, 32.73 nm, 34.41 nm, 30.46 nm, 26.89 nm, 26.06 nm, 25.01 nm, 25.46 nm, 25.70 nm. Rata-rata ukuran kristalit dari sampel nanopartikel ZnO ini adalah 28.86 nm. Sementara itu, parameter kisi a = b = 3.25 Å dan c = 5.21 Å dengan volume unit sel sebesar 47.61 Å3. Kata-kata kunci: nanopartikel ZnO, presipitasi, XRD, pH, ukuran kristalit. Abstract ZnO nanoparticles were synthesized by precipitation method with a pH of 12 and the precursor solution was heated at 60℃ during the stirring process. Furthermore, the samples obtained were annealed for 4 hours at 400℃. Characterization using X-Ray Diffraction (XRD) technique on the sample has been carried out to determine the phase formed and the crystal structure. Based on the Inorganic Crystal Structure Database (ICSD) number 98-018-0050, the X-Ray Diffraction (XRD) pattern of ZnO nanoparticles has a polycrystalline hexagonal wurtzite structure with the space group P63mc. The crystallite size in (100), (002), (101), (102), (110), (103), (200), (112), (201) plane are 33.04 nm, 32.73 nm, 34.41 nm, 30.46 nm, 26.89 nm, 26.06 nm, 25.01 nm, 25.46 nm, 25.70 nm, respectively. The average crystallite size of the ZnO nanoparticle samples was 28.86 nm. Meanwhile, lattice parameters a = b = 3.25 Å and c = 5.21 Å with a unit cell volume of 47.61 Å3. Keywords: ZnO nanoparticles, precipitation, XRD, pH, crystallite size
Surface Enhanced Raman Spectroscopy with La0.5Bi0.5FeO3-Based Substrates for Paraquat Pesticide Detection Tiawati, Nia; Triyono, Djoko; Shiddiq, Muhandis
Journal of Physics and Its Applications Vol 7, No 2 (2025): May 2025
Publisher : Diponegoro University Semarang Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpa.v7i2.26211

Abstract

Paraquat is a highly toxic herbicide that poses serious environmental and health risks. Conventional detection methods are accurate but often complex and time-consuming. This study explores the use of La0.5Bi0.5FeO3 (LBFO) perovskite as a novel Surface-Enhanced Raman Spectroscopy (SERS) substrate. LBFO was synthesized via a sol-gel method and characterized using XRD, XRF, UV-Vis, and Raman spectroscopy. The LBFO-based substrate successfully enhanced the Raman signals of paraquat, enabling detection at concentrations as low as 6 ppm. These results suggest the feasibility of LBFO as an effective and low-cost SERS substrate for rapid paraquat detection.
Co-Authors Alaih, Akhmad Futukhillah Fataba Iwan Sugihartono Shiddiq, Muhandis Triyono, Djoko