Surface modification of titanium oxide nanocrystals with PEG

S. Rahim, M. Sasani Ghamsari, Shahidan Radiman

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

In this study, surface modification of titanium oxide nanocrystals has been considered. PEG was employed to make bio-conjugated TiO 2 nanopowders (TNPs). On the basis of the modification process, the effect of PEG on the size and morphology of prepared samples has been evaluated. It was found that the addition stage of PEG plays a critical role in the characteristics of TiO 2 nanopowders. It was shown that PEG affects sol-gel reactions and the crystallization process of the prepared titanium oxide nanoparticles. PEG must be added before starting the synthesis to get well-defined size distribution, compared to post-synthesis. However, TiO 2/PEG nanoparticles synthesized by the second approach have good photocatalytic performance, and the photodecomposition test of methylene blue proves that the addition of PEG after the synthesis of TiO 2 improves the photocatalytic properties of prepared TiO 2 nanoparticles. This phenomenon will affect TiO 2 functionality, as well.

Original languageEnglish
Pages (from-to)948-953
Number of pages6
JournalScientia Iranica
Volume19
Issue number3
DOIs
Publication statusPublished - Jun 2012

Fingerprint

Titanium oxides
Nanocrystals
Polyethylene glycols
Surface treatment
Nanoparticles
Sol-gels
Crystallization

Keywords

  • Methylene blue
  • PEG
  • Photocatalytic degradation
  • Sol-gel process
  • TiO nanocrystals

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Surface modification of titanium oxide nanocrystals with PEG. / Rahim, S.; Sasani Ghamsari, M.; Radiman, Shahidan.

In: Scientia Iranica, Vol. 19, No. 3, 06.2012, p. 948-953.

Research output: Contribution to journalArticle

Rahim, S. ; Sasani Ghamsari, M. ; Radiman, Shahidan. / Surface modification of titanium oxide nanocrystals with PEG. In: Scientia Iranica. 2012 ; Vol. 19, No. 3. pp. 948-953.
@article{20a7d7b4d36e425db4d1ed16c2f26b9f,
title = "Surface modification of titanium oxide nanocrystals with PEG",
abstract = "In this study, surface modification of titanium oxide nanocrystals has been considered. PEG was employed to make bio-conjugated TiO 2 nanopowders (TNPs). On the basis of the modification process, the effect of PEG on the size and morphology of prepared samples has been evaluated. It was found that the addition stage of PEG plays a critical role in the characteristics of TiO 2 nanopowders. It was shown that PEG affects sol-gel reactions and the crystallization process of the prepared titanium oxide nanoparticles. PEG must be added before starting the synthesis to get well-defined size distribution, compared to post-synthesis. However, TiO 2/PEG nanoparticles synthesized by the second approach have good photocatalytic performance, and the photodecomposition test of methylene blue proves that the addition of PEG after the synthesis of TiO 2 improves the photocatalytic properties of prepared TiO 2 nanoparticles. This phenomenon will affect TiO 2 functionality, as well.",
keywords = "Methylene blue, PEG, Photocatalytic degradation, Sol-gel process, TiO nanocrystals",
author = "S. Rahim and {Sasani Ghamsari}, M. and Shahidan Radiman",
year = "2012",
month = "6",
doi = "10.1016/j.scient.2012.03.009",
language = "English",
volume = "19",
pages = "948--953",
journal = "Scientia Iranica",
issn = "1026-3098",
publisher = "Sharif University of Technology",
number = "3",

}

TY - JOUR

T1 - Surface modification of titanium oxide nanocrystals with PEG

AU - Rahim, S.

AU - Sasani Ghamsari, M.

AU - Radiman, Shahidan

PY - 2012/6

Y1 - 2012/6

N2 - In this study, surface modification of titanium oxide nanocrystals has been considered. PEG was employed to make bio-conjugated TiO 2 nanopowders (TNPs). On the basis of the modification process, the effect of PEG on the size and morphology of prepared samples has been evaluated. It was found that the addition stage of PEG plays a critical role in the characteristics of TiO 2 nanopowders. It was shown that PEG affects sol-gel reactions and the crystallization process of the prepared titanium oxide nanoparticles. PEG must be added before starting the synthesis to get well-defined size distribution, compared to post-synthesis. However, TiO 2/PEG nanoparticles synthesized by the second approach have good photocatalytic performance, and the photodecomposition test of methylene blue proves that the addition of PEG after the synthesis of TiO 2 improves the photocatalytic properties of prepared TiO 2 nanoparticles. This phenomenon will affect TiO 2 functionality, as well.

AB - In this study, surface modification of titanium oxide nanocrystals has been considered. PEG was employed to make bio-conjugated TiO 2 nanopowders (TNPs). On the basis of the modification process, the effect of PEG on the size and morphology of prepared samples has been evaluated. It was found that the addition stage of PEG plays a critical role in the characteristics of TiO 2 nanopowders. It was shown that PEG affects sol-gel reactions and the crystallization process of the prepared titanium oxide nanoparticles. PEG must be added before starting the synthesis to get well-defined size distribution, compared to post-synthesis. However, TiO 2/PEG nanoparticles synthesized by the second approach have good photocatalytic performance, and the photodecomposition test of methylene blue proves that the addition of PEG after the synthesis of TiO 2 improves the photocatalytic properties of prepared TiO 2 nanoparticles. This phenomenon will affect TiO 2 functionality, as well.

KW - Methylene blue

KW - PEG

KW - Photocatalytic degradation

KW - Sol-gel process

KW - TiO nanocrystals

UR - http://www.scopus.com/inward/record.url?scp=84863706991&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84863706991&partnerID=8YFLogxK

U2 - 10.1016/j.scient.2012.03.009

DO - 10.1016/j.scient.2012.03.009

M3 - Article

VL - 19

SP - 948

EP - 953

JO - Scientia Iranica

JF - Scientia Iranica

SN - 1026-3098

IS - 3

ER -