Preparation of SnO2-TiO2/MWCNT nanocomposite photocatalysts with different synthesis parameters

Balázs Réti, Nóra Péter, A. Dombi, K. Hernádi

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Photocatalytic activity of TiO2 can be further improved by coupling it with other semiconductors and/or carbon nanotubes (CNTs) and create a composite material. SnO2-TiO2/multiwall carbon nanotube (MWCNT) composite catalysts with different molar ratios were prepared and the photocatalytic activities of these samples were evaluated with methylene blue decomposition. The catalysts were synthesized by acid-catalysed sol-gel method. Two series of catalysts were made, one with co-precipitation and the other one with consecutive precipitation method. The samples were characterized by TEM, XRD, BET techniques, respectively. These investigations revealed that some crystalline oxide nanoparticles were successfully bound onto the surface of MWCNTs. Mainly, the MWCNT containing catalysts showed higher photocatalytic activity, and addition of SnO2 enhances the efficiency of photocatalysts. The composites with the ratio of 25-75 (SnO2-TiO2mol%) with 10wt% of MWCNTs showed the best performance in photocatalytic test reactions.

Original languageEnglish
Pages (from-to)2549-2553
Number of pages5
JournalPhysica Status Solidi (B) Basic Research
Volume250
Issue number12
DOIs
Publication statusPublished - Dec 2013

Fingerprint

Carbon Nanotubes
Photocatalysts
Carbon nanotubes
Nanocomposites
nanocomposites
carbon nanotubes
catalysts
preparation
Catalysts
synthesis
composite materials
Composite materials
Methylene Blue
methylene blue
Coprecipitation
Oxides
Sol-gel process
gels
Semiconductor materials
Nanoparticles

Keywords

  • Composite
  • MWCNT
  • Photocatalysis
  • SnO
  • TiO

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Preparation of SnO2-TiO2/MWCNT nanocomposite photocatalysts with different synthesis parameters. / Réti, Balázs; Péter, Nóra; Dombi, A.; Hernádi, K.

In: Physica Status Solidi (B) Basic Research, Vol. 250, No. 12, 12.2013, p. 2549-2553.

Research output: Contribution to journalArticle

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