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All Journal BERKALA FISIKA Jurnal Penelitian Fisika dan Aplikasinya (JPFA) YOUNGSTER PHYSICS JOURNAL Indonesian Journal of Chemistry Journal of Physics and Its Applications Cendekia Journal of Pharmacy
Ali Khumaeni
Department Of Physics, Faculty Of Science And Mathematics, Diponegoro University, Jl. Prof. Soedarto SH, Tembalang, Semarang 50275, Indonesia
Astronomy Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Materials Science & Nanotechnology Medicine & Pharmacology Physics

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Colloidal TiO2 Nanoparticles Synthesized via Pulsed Laser Ablation in Liquid for Photocatalytic Degradation of Rhodamine B Mubarokah, Nafaul; Khumaeni, Ali; Nurhasanah, Iis
Journal of Physics and Its Applications Vol 8, No 1 (2026): February 2026
Publisher : Diponegoro University Semarang Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpa.v8i1.29717

Abstract

Colloidal TiO2 nanoparticles were synthesized via pulsed laser ablation in liquid (PLAL) method using a Q-switched Nd:YAG laser operating at 1064 nm. The optical and structural properties were analyzed using UV-Vis spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM), and selected area diffraction (SAED). The amorphous TiO2 colloids exhibited a distinct absorption edge in the UV region, with the optical bandgap (Eg) estimated by the Tauc plot to be approximately 3.75 eV. Photocatalytic activity was evaluated through the degradation of Rhodamine B (10 ppm) under UV lamp (254 nm) irradiation. The TiO2 photocatalyst achieved more than 75% degradation within 150 minutes, whereas the control (photolysis without catalyst) showed less than 5% degradation. These results demonstrate that PLAL enables a clean and straightforward synthesis of high-purity amorphous TiO2 nanoparticles with effective photocatalytic activity under UV irradiation.
Co-Authors Ainul Ibnu Khotob Asep Yoyo Wardaya Chorirul Anam Eko Hidayanto Fajar Arianto Fatikasari, Tanty Fatkhiyatus Saadah Gani Gunawan Heri Sugito Hideaki Kitahara, Iis Nurhasanah Jatmiko Endro Suseno Jonathan, Felix K Sofjan Firdausi K. Sofjan Firdausi Ketut Sofjan Firdausi, Ketut Sofjan Kiichiro Kagawa Kohji Yamamoto Masahiko Tani Mubarokah, Nafaul Much Azam Muhammad Nur Nasrullah Idris Nurhasanah, Wahidatun Dewi Nurul Hikmantiyah Pandji Triadyaksa Paramita, Safira Arta Pratiwi, Salsa Dila Nisa Qidir Maulana Rahmawati, Aidah Rizka Zakiyatul Miskiyah Setyoningrum, Aqilatul F.D. Soesanto, Qidir M.B Soesanto, Qidir Maulana Binu Susilo Hadi Syifa Avicenna Syifa Azahra Takashi Furuya Tiwiyaningsih, Tiwiyaningsih Very Richardina Wahyu Setia Budi Wahyuddin Wahyuddin Winarno Winarno Zaenul Muhlisin