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All Journal Natural B Indonesian Journal of Pharmaceutical Science and Technology JP3 (Jurnal Pendidikan dan Profesi Pendidik) Science and Technology Indonesia Jurnal Sains Teknologi dan Lingkungan (JSTL) Jurnal Penelitian Pendidikan IPA (JPPIPA) Jukung (Jurnal Teknik Lingkungan) Jurnal Biologi Tropis JMM (Jurnal Masyarakat Mandiri) ORBITA: Jurnal Pendidikan dan Ilmu Fisika SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA Jurnal Pengabdian Magister Pendidikan IPA Jurnal Pendidikan Fisika dan Teknologi EIGEN MATHEMATICS JOURNAL Indonesian Physical Review Kappa Journal Instructional Development Journal Informatika Jurnal Ilmiah Farmako Bahari Acta Chimica Asiana Jurnal Komunitas: Jurnal Pengabidian Kepada Masyarakat Jurnal Abdi Insani Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Jurnal Warta Desa (JWD) Jurnal Begawe Teknologi Informasi Kreasi: Jurnal Inovasi dan Pengabdian Kepada Masyaraka Jurnal Pepadu INSANTA: JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Pertambangan dan Lingkungan Journal of Technology, Mathematics and Social Science (J'THOMS) Journal of Fisheries & Marine Wahana Fisika : Jurnal Fisika dan Terapannya Journal of Theological Students
Susi Rahayu
Program Studi Fisika, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Mataram
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Journal : Science and Technology Indonesia

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Synthesis and Characterization of TiO2/CaTiO3 Perovskite Composite Derived from Pinctada maxima Shell Waste Kurniawidi, Dian W.; Rahayu, Susi; Budianto, Arif; Saputra, Kormil; Agista, Wida Puteri; Suprayogi, Thatit; Marlina, Resti
Science and Technology Indonesia Vol. 10 No. 3 (2025): July
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2025.10.3.924-942

Abstract

This study has succeeded in synthesizing and characterizing TiO2/CaTiO3 perovskite composites using calcium carbonate (CaCO3) from shellfish waste (Pinctada maxima). Synthesis was carried out through the coprecipitation method with variations in the molar ratio of CaCO3:TiO2 and calcination temperatures (700oC, 800oC, and 900oC). Characterization was carried out using FTIR, DTA-TG, XRD, SEM-EDS, BET and UV-Vis. The results of the analysis showed that the calcination temperature affected the powder color, crystal structure, thermal properties and particle size. The DTA-TG analysis shows that increasing the calcination temperature up to 900oC significantly reduces mass loss to 51.88%, with minimal thermal events, indicating the formation of a thermally stable and well-crystallized TiO2/CaTiO3 structure. At a temperature of 900oC, a more perfect CaTiO3 was formed with the whitest powder color, the anatase and brookite phases of TiO2 were still detected, while the calcite phase was still found at a temperature of 700oC. The morphology of the samples showed agglomeration with increasingly uniform particle sizes at higher calcination temperatures. Complementary BET analysis confirms that the composite possesses a mesoporous structure with a specific surface area of 11.42 m2/g and a pore size distribution of 3-5 nm, making it suitable for adsorption and photocatalytic applications. UV-Vis analysis showed an increase in the band gap value along with the increase in the TiO2 ratio. This is also confirmed by the presence of Urbach energy which tends to increase with increasing TiO2 ratio.
Functionalization of Titanium Dioxide Nanoparticles in Anatase-Rutile Phases and Quartz Crystal Microbalance for Humidity Sensing Materials Mardiana, Laili; Fajriah, Baiq Nurul; Wirawan, Rahadi; Alaydrus, Alfina Taurida; Rahayu, Susi
Science and Technology Indonesia Vol. 11 No. 1 (2026): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2026.11.1.252-260

Abstract

A QCM (Quartz Crystal Microbalance) can be developed as a humidity sensor with a selective coating material. TiO2 (titanium dioxide) is a metal oxide with several crystal phases: anatase and rutile phases. However, there are few studies on the crystal phase investigation of a TiO2-based humidity sensor. Thus, this study aimed to develop a humidity sensor by functionalizing TiO2 particles with different crystal phases. The coating materials were prepared by ultrasonication. The synthesis was conducted by mixing 7 mL of TTIP (Titanium (IV) Isopropoxide) precursor in ethanol. This solution was stirred for 30 minutes, ultrasonicated, and heated for 16 hours to make a gel. The next step was a calcination process with two different temperatures to produce different crystal phases: 500oC (anatase) and 700oC (rutile). The synthesized powders were analyzed using XRD-SEM and coated onto the surfaces of the QCMs used as the developed sensors. These sensors were tested inside a chamber using a humidity control kit and a frequency counter (humidity levels: 57% to 92%). The results show that the rutile phase has a smaller particle diameter (252.672 nm) than the anatase phase (384.589 nm). The humidity sensing examinations indicate that the anatase-phase sensor has faster response-recovery times (19 seconds and 8 seconds) than the rutile-phase sensor (28 seconds and 50 seconds). It can be concluded that TiO2 particles in the anatase and rutile phases can be functionalized as a high-sensitivity coating material for a QCM humidity sensor.
Co-Authors ABDUL GANI abdurrouf Abdurrouf Afiatul Hafifah Agista, Wida Puteri Agus Saputra Agus Wahid H Ahmad Risandi F. Ahmad Taufik Ahmad Taufik S Alaa', Siti Alaa, Siti Alaa, Siti Alaa`, Siti Alawiyah, Geby Alaydrus, Alfina T. Alaydrus, M. Mukaddam Alaydrus, Mukaddam Alda Berlian Alfina Alaydrus Alfina Taurida Alaydrus Alhadi, Kasnawi Alhaqiqi, Candra Alimuddin Alimuddin Amirrah, Reffa Amrul Ikhsan Amrulloh, Ashfia Andini, Mira Anggie Dwi P. Anggriani, Ni Ketut Ansyori, Maz Isa Anto Wahyu Prastyo, Andri Arif Budianto Arif Budianto Arif Budianto Arum, Maysaroh Arzyl Akbar Baiq Niswatul Khair Baiq R. S. Yusuf Bakti Sukrisna Bambang Sumardjoko Cahyawati, Triyana Dyah Darsinah Darsinah Deasy Mariyani Desti Olga Safitri Destrianingtyas, Aulia Safitri Dewi Handayani Dewi, Diah L. Diah L. Dewi Dian W Kurniawidi Dian W. Kurniawidi Dian W. Kurniawidi Dian Wijaya Kurniawidi Dian Wijaya Kurniawidi Djoko H Santjojo Djoko H. Santjojo Dodi Mariadi Dona, Dona Dwiyansaputra, Ramaditia Eka Rahmawati Eka Rahmawati Enggar Juwanda K. Ervina Sandra Dewi Eva Nurhaliza Eva Nurhaliza Fadila, Naila Fadli Robiandi Fajarica, Shinta Desiyana Fajriah, Baiq Nurul Fajriyah, Putri Arifatul Fidya, Karina Alma Fitri Bimantoro Hadi, Kasnawi Al Halil Akhyar Hamidi, M. Zaenuddin Hamidi, Mohammad Zaenuddin Handayana, I G N Yudi Handayana, I Gusti Ngurah Yudi Handayana, I Gusti Ngurah Yudi Hasanah, Khofizzatul Hendrawan Hendri Maradona, Hendri Hidayatullah, Kholik Hiden - Hiden Huan Ahmad T. Hurnah Hurnah, Hurnah Huwaida, Maitsa I Wayan Sudiarta Ichsan, Andi Chairil Inatsa, Najma Intan Utami Intan Utami Isa A.A, Maz Iwan Sumarlan Jannah, Sahlli Jazuly, Zaky Juniarti, Rosita Kasnawi Al Hadi Khusnul Khotimah Kiki Yasdomi Kormil Saputra Kurniawan Yuniarto Kurniawidi, Dian W Kurniawidi, Dian W. Kurniawidi, Dian Wijaya Laeli, Ida Lahir, Sri Laili Mardiana Lalu A Didik Lalu A Didik Lalu A. Didik Lalu Sahrul Hudha Legi Aprila Lestari, Sintya Dewi Lily Maysari Angraini Liza Umitasari Mammi Dwi R. Marlina, Resti Marzuki Marzuki Marzuki Marzuki Masruroh Masruroh Maulana, Sutan Fajri Meilani, Dini Moh. Bahtiar Muh. Alfaris Muhamad Ali Muhamad Ali Muhamad Ali Muhamad Amin Muhamad Amin Muhammad Fajrin Muhammad Maulana Mustafid, Azhar Nadila Rahmawati Nafsiatil Afro', Maulina Nurfadilah Nurfadilah Nurfadilah Nurhidayati Nurhidayati Nurlaili Nurlaili Nurliah Buhari Nurmaulida, Siti Ema NURUL QOMARIYAH Oktri P, Awanda Pertiwi, Shavira Pranahita, Dewa Dwi Purnaning, Dyah Putraji, L.M. Guguh Raisa, Daeva Ramadian Ridho Illahi Reza Alfian Ridwansyah, Habib Rohani Sayuti Rubi'ah, Siti S., RR. Delima Sabrina, Sovia sasabila, sasabila Septiani, Nonik Setyawan P Sakti Setyawan P. Sakti Shomad, Moh Abdul Sinta Devi Hariyanti Siti Alaa Siti Alaa Siti Alaa’ Sri Mulyani Suhayat Minardi Suhayat Minardi Sunita, Asfa Syamsuddin Syamsuddin Syamsuddin Syamsuddin Syamsuddin Teguh Ardianto, Teguh Thathit Suprayogi Utami, Urfi Wafrotur Rohmah Wahana, Lidia Wahyudi, Sopian Ari Wardi, Palaivia Harman Wijaya Kurniawidi, Dian Wirawan, Rahadi Wirawan, Rahadi Zahrah Ramadlan Mubarokah Zubaidi, Ariyan