Diatom biosilica modified with Ce-Tb mixed oxide twinning nanoparticles and with polyphases quasi-crystalline Tb oxide nanoparticles
Wojtczak I. Brzozowska W. Bekissanova Z. Trykowski G. Rybczyński P. Ośmiałowski B. Sprynskyy M.
5 January 2025Elsevier B.V.
Colloids and Surfaces A: Physicochemical and Engineering Aspects
2025#704
In this study, we developed a novel composite material by combining natural diatom biosilica with Ce-Tb mixed oxide and polyphase quasi-crystalline Tb oxide nanoparticles. Diatom biosilica, characterised by its highly ordered three-dimensional structure and excellent thermal, mechanical, and optical properties, serves as an ideal matrix for the synthesis of advanced functional materials. The composites were extensively characterised using techniques such as SEM, TEM, TGA, EDS, XRD, FTIR, and PL spectroscopy. The results indicate significant UV absorption (250–400 nm), strong visible photoluminescence (300–500 nm), and notable anti-Stokes emission (∼420 nm) under 800 nm excitation. Additionally, the composites exhibit remarkable thermal stability and hydrophobicity, making them promising candidates for applications in optoelectronic devices, photovoltaic systems, and high-resolution display technologies.
Cerium-terbium mixed oxide , Diatom biosilica , Diatoms , Photoluminescence properties , Terbium oxide nanoparticles
Text of the article Перейти на текст статьи
Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, Torun, 87-100, Poland
Division of Surface Science, Faculty of Chemical Technology and Engineering, Bydgoszcz University of Science and Technology, Kaliskiego 7, Bydgoszcz, 85-796, Poland
Faculty of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
Center of Physical-Chemical Methods of Research and Analysis, Almaty, 050012, Kazakhstan
Department of Materials Chemistry, Adsorption and Catalysis, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, Torun, 87-100, Poland
Department of Organic Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, Torun, 87-100, Poland
Faculty of Chemistry
Division of Surface Science
Faculty of Chemistry and Chemical Technology
Center of Physical-Chemical Methods of Research and Analysis
Department of Materials Chemistry
Department of Organic Chemistry
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026