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Journal : Science and Technology Indonesia

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.
Co-Authors Abdul Kariem Arof Adi Wiratno, Adi Adi, Mika Adventus Panda Agista, Wida Puteri Agung Samudra Ahmad Muammar Kadafi Ahmad Taufiq Al-Hadi, Risfa Aliya Alfanaar, Rockiy Alfanaar, Rokiy Ansori Rahman Arif Budianto Arif Hidayat Arsana, Mu afa Arsana, Mu’afa Purwa Arsana, Mu’afa Purwa Awalul Fatiqin Ayu, Regina Wahyudyah Sonata Citrariana, Shesanthi Citrariana, Shesanti Decenly, Decenly Defilia Anogra Riani Desindria, Galang Rizdho Dewi, Apriana Dina Maftuha Dita Monita Dwinanda, Indah Gumilang Elon Jipasca Emma Ayudia Noriadita Ety Kurniati Fatiqin, Awalul Fauziah, Anisa Rahma Febri Nur Ngazizah Frans Putra Ganesa Gerung, Jenny Blessia Gunawan, Yohanes Edy Haq, Muhammad Hasanul I Nyoman, Sudyana, Ike Apriani, Ike Jipasca, Elon Kadek Ayu Cintya Adelia Kamison Karyadi Karyadi Karyadi Karyadi Kormil Saputra Kurniawan, Yehezkiel Steven Kurniawidi, Dian W. Mariasa, Joice Cleriska Markus Diantoro Marlina, Resti Monita, Dita Muhamad Taufik Hidayat Muhammad Baqir Zaini Muhammad Hudan Rahmat Muhammad Priyadi Muhammad Rifqi Shodri Murwantini, Sri Mu’afa Purwa Arsana Mu’afa Purwa Arsana Mu’afa Purwa Arsana Ngazizah, Febri Nur Norhusna, Norhusna Nur Amirah Mat Nor Nur Hidayat Okta Meilawaty Parametta, Vidya Putri Wineni Ra Hoetari Tirta Amelia Rahman, Ansori Rahman, Sudarman Regina Wahyudyah Sonata Ayu Renna Jessica Sihombing Riana, Shesanti Citra Riani, Defilia Riri Novita Sunarti Rizki Rachmad Saputra Rokiy Alfanaar S E I Suryani S W Himmah Sahari, Yudhi Ekakristian Samuel Layang Sandi Mahesa Yudhantara Saputra, Mika Adi Shahan Shah Shesanti Citra Riana Shesanti Citra Riana Shodri, Muhammad Rifqi Simajuntak, Ruth Riama Siti Maryam Siti Sunariyati Solehudin Solehudin Sulistia, Tiya Sunaryono Susi Rahayu Syarifah Syarifah Titik Istirohah Wilda, Robiatul Witari Yahya Febrianto Yahya Febrianto Yithro Serang Yohanes Edi Gunawan Yosaeunike, Vitatani Yudhi Ekakristian Sahari Yulita, Elia Z Nurdiana ZAINUL ARIFIN IMAM SUPARDI