Preparation and surface properties of mesoporous silica particles modified with poly(N-vinyl-2-pyrrolidone) as a potential adsorbent for bilirubin removal

Alexander Timin, Evgeniy Rumyantsev, Sergey N. Lanin, Sveta A. Rychkova, Sabir S. Guseynov, Alexey V. Solomonov, Elena V. Antina

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The surface of silica particles was modified with polyvinyl pyrrolidone (PVP) through sol-gel process. The different experimental techniques, i.e., thermogravimetric analysis (TGA and DTG), nitrogen adsorption, scanning electron microscopy (SEM), laser diffraction analysis (LDA), fourier transform spectroscopy (FTIR) are used to characterize the pure non-functionalized and functionalized silicas containing different amount of PVP. It was shown that PVP-modified silica samples have well developed porous structure; the values of specific surface area for PVP-modified silicas are in the range of 140-264 m2 g-1. While the non-functionalized silica shows the low surface area (SBET = 40 m2 g-1). The BJH analysis showed that PVP can be used as an effective agent to increase an average pore size and total pore volume. The results indicate that PVP functionalized silicas show a potential as effective adsorbents for bilirubin removal compared to other available adsorbents.

Original languageEnglish
Pages (from-to)673-683
Number of pages11
JournalMaterials Chemistry and Physics
Volume147
Issue number3
DOIs
Publication statusPublished - 15 Oct 2014
Externally publishedYes

Keywords

  • Adsorption
  • Biomaterials
  • Ceramics
  • Polymers
  • Sol-gel growth
  • Surfaces

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Preparation and surface properties of mesoporous silica particles modified with poly(N-vinyl-2-pyrrolidone) as a potential adsorbent for bilirubin removal'. Together they form a unique fingerprint.

Cite this