Shape-controlled agglomeration of TiO2 nanoparticles. New insights on polycrystallinity vs. single crystals in photocatalysis

K. Vajda, K. Saszet, E. Zs Kedves, Zs Kása, V. Danciu, L. Baia, K. Magyari, K. Hernádi, G. Kovács, Zs Pap

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The photocatalytic activity of TiO2 photocatalysts depends mainly on its crystal phase composition, primary particle size and specific surface area. Shape manipulation is an interesting way to increase the photocatalytic efficiency. The shape-tuning can be carried out at different levels, both at single crystal and polycrystalline agglomeration levels. The aim of our present study was to compare the structural and photocatalytic performances of two type/level of crystal organization of TiO2, namely single crystal shaping vs. polycrystalline/shape tailored agglomeration. The morphological analysis was achieved by XRD, SEM, TEM, Raman spectroscopy, DRS. The photocatalytic performance of the materials was evaluated by the degradation of a model pollutant (phenol). It was found, that both shape manipulating approaches bear the necessary potential which can be exploited in future development of efficient photocatalysts' synthesis procedures.

Original languageEnglish
Pages (from-to)3077-3087
Number of pages11
JournalCeramics International
Volume42
Issue number2
DOIs
Publication statusPublished - 2016

Fingerprint

Photocatalysis
Photocatalysts
Agglomeration
Single crystals
Nanoparticles
Crystals
Phenol
Phase composition
Specific surface area
Phenols
Raman spectroscopy
Catalyst activity
Tuning
Particle size
Transmission electron microscopy
Degradation
Scanning electron microscopy

Keywords

  • Crystal growth
  • Polycrystalline system
  • Single crystals
  • Surface normalized photocatalytic activity
  • Titania

ASJC Scopus subject areas

  • Ceramics and Composites
  • Process Chemistry and Technology
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Shape-controlled agglomeration of TiO2 nanoparticles. New insights on polycrystallinity vs. single crystals in photocatalysis. / Vajda, K.; Saszet, K.; Kedves, E. Zs; Kása, Zs; Danciu, V.; Baia, L.; Magyari, K.; Hernádi, K.; Kovács, G.; Pap, Zs.

In: Ceramics International, Vol. 42, No. 2, 2016, p. 3077-3087.

Research output: Contribution to journalArticle

Vajda, K, Saszet, K, Kedves, EZ, Kása, Z, Danciu, V, Baia, L, Magyari, K, Hernádi, K, Kovács, G & Pap, Z 2016, 'Shape-controlled agglomeration of TiO2 nanoparticles. New insights on polycrystallinity vs. single crystals in photocatalysis', Ceramics International, vol. 42, no. 2, pp. 3077-3087. https://doi.org/10.1016/j.ceramint.2015.10.095
Vajda, K. ; Saszet, K. ; Kedves, E. Zs ; Kása, Zs ; Danciu, V. ; Baia, L. ; Magyari, K. ; Hernádi, K. ; Kovács, G. ; Pap, Zs. / Shape-controlled agglomeration of TiO2 nanoparticles. New insights on polycrystallinity vs. single crystals in photocatalysis. In: Ceramics International. 2016 ; Vol. 42, No. 2. pp. 3077-3087.
@article{d4e54cfa4c13406e98df1675b8f474d1,
title = "Shape-controlled agglomeration of TiO2 nanoparticles. New insights on polycrystallinity vs. single crystals in photocatalysis",
abstract = "The photocatalytic activity of TiO2 photocatalysts depends mainly on its crystal phase composition, primary particle size and specific surface area. Shape manipulation is an interesting way to increase the photocatalytic efficiency. The shape-tuning can be carried out at different levels, both at single crystal and polycrystalline agglomeration levels. The aim of our present study was to compare the structural and photocatalytic performances of two type/level of crystal organization of TiO2, namely single crystal shaping vs. polycrystalline/shape tailored agglomeration. The morphological analysis was achieved by XRD, SEM, TEM, Raman spectroscopy, DRS. The photocatalytic performance of the materials was evaluated by the degradation of a model pollutant (phenol). It was found, that both shape manipulating approaches bear the necessary potential which can be exploited in future development of efficient photocatalysts' synthesis procedures.",
keywords = "Crystal growth, Polycrystalline system, Single crystals, Surface normalized photocatalytic activity, Titania",
author = "K. Vajda and K. Saszet and Kedves, {E. Zs} and Zs K{\'a}sa and V. Danciu and L. Baia and K. Magyari and K. Hern{\'a}di and G. Kov{\'a}cs and Zs Pap",
year = "2016",
doi = "10.1016/j.ceramint.2015.10.095",
language = "English",
volume = "42",
pages = "3077--3087",
journal = "Ceramics International",
issn = "0272-8842",
publisher = "Elsevier Limited",
number = "2",

}

TY - JOUR

T1 - Shape-controlled agglomeration of TiO2 nanoparticles. New insights on polycrystallinity vs. single crystals in photocatalysis

AU - Vajda, K.

AU - Saszet, K.

AU - Kedves, E. Zs

AU - Kása, Zs

AU - Danciu, V.

AU - Baia, L.

AU - Magyari, K.

AU - Hernádi, K.

AU - Kovács, G.

AU - Pap, Zs

PY - 2016

Y1 - 2016

N2 - The photocatalytic activity of TiO2 photocatalysts depends mainly on its crystal phase composition, primary particle size and specific surface area. Shape manipulation is an interesting way to increase the photocatalytic efficiency. The shape-tuning can be carried out at different levels, both at single crystal and polycrystalline agglomeration levels. The aim of our present study was to compare the structural and photocatalytic performances of two type/level of crystal organization of TiO2, namely single crystal shaping vs. polycrystalline/shape tailored agglomeration. The morphological analysis was achieved by XRD, SEM, TEM, Raman spectroscopy, DRS. The photocatalytic performance of the materials was evaluated by the degradation of a model pollutant (phenol). It was found, that both shape manipulating approaches bear the necessary potential which can be exploited in future development of efficient photocatalysts' synthesis procedures.

AB - The photocatalytic activity of TiO2 photocatalysts depends mainly on its crystal phase composition, primary particle size and specific surface area. Shape manipulation is an interesting way to increase the photocatalytic efficiency. The shape-tuning can be carried out at different levels, both at single crystal and polycrystalline agglomeration levels. The aim of our present study was to compare the structural and photocatalytic performances of two type/level of crystal organization of TiO2, namely single crystal shaping vs. polycrystalline/shape tailored agglomeration. The morphological analysis was achieved by XRD, SEM, TEM, Raman spectroscopy, DRS. The photocatalytic performance of the materials was evaluated by the degradation of a model pollutant (phenol). It was found, that both shape manipulating approaches bear the necessary potential which can be exploited in future development of efficient photocatalysts' synthesis procedures.

KW - Crystal growth

KW - Polycrystalline system

KW - Single crystals

KW - Surface normalized photocatalytic activity

KW - Titania

UR - http://www.scopus.com/inward/record.url?scp=84959544252&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84959544252&partnerID=8YFLogxK

U2 - 10.1016/j.ceramint.2015.10.095

DO - 10.1016/j.ceramint.2015.10.095

M3 - Article

AN - SCOPUS:84959544252

VL - 42

SP - 3077

EP - 3087

JO - Ceramics International

JF - Ceramics International

SN - 0272-8842

IS - 2

ER -