Influence of Ca species on the surface properties of TiO2 nanoparticles and its possible transformation


Saygin H., Baysal A.

BULLETIN OF MATERIALS SCIENCE, vol.45, no.3, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 45 Issue: 3
  • Publication Date: 2022
  • Doi Number: 10.1007/s12034-022-02735-z
  • Journal Name: BULLETIN OF MATERIALS SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, INSPEC, Metadex, Civil Engineering Abstracts
  • Keywords: Chemical interaction, calcium, nanoparticles, surface chemistry, interference, ZNO NANOPARTICLES, WATER CHEMISTRY, HUMIC-ACID, AGGREGATION, ECOTOXICITY, TOXICITY, BEHAVIOR, NANOMATERIALS, TEMPERATURE, DISSOLUTION
  • Istanbul Technical University Affiliated: Yes

Abstract

Metal oxide (e.g., TiO2) nanoparticles have been used in various environmental, food and medical products. Other chemical species, e.g., major cationic or anionic compounds, are also found in these applications. However, limited information on the interactions of nanoparticles with the other chemical species is available. Thus, this study aimed to examine interaction of TiO2 nanoparticles with individual and combined presence of Ca compounds by the surface chemistry of TiO2 nanoparticles using dynamic light scattering, Fourier transform infrared spectrometry and energy-dispersive X-ray spectroscopy. Moreover, surface characteristics such as crystallinity, functional group indices (hydroxyl, carbonyl and vinyl), oxygen to carbon ratio, as well as the influence of surface characteristics on the zeta potential and particle sizes were evaluated. The results indicated that the crystallinity, oxygen to carbon ratio, hydroxyl and vinyl groups of TiO2 nanoparticles were significantly affected from the interaction with Ca compounds. As a result of surface transformation, affecting the functional groups and crystallinity, the zeta potential and particle size were significantly influenced.