Titania nanotube stabilized BiOCl nanoparticles in visible-light photocatalysis

B. Buchholcz, H. Haspel, A. Oszkó, Á. Kukovecz, Z. Kónya

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Photocatalysis is a green approach in environmental organic pollutant decomposition. Lately, considerable improvement in the activity of photocatalysts has been achieved with the realization of p-n heterostructures due to the lifetime extension of the photogenerated charge carriers. Herein, we report a facile synthesis approach for decorating n-type titanate nanotubes with p-type V-VI-VII compound semiconductor BiOCl nanoparticles. It is well-known that BiOX (X = Cl, Br, I) materials form nanometer-thick platelets, which can eventually assemble into micrometer size flower-like 3D structures. Here, we demonstrate that the tubular titanate support can stabilize BiOCl on its surface in the form of nanoparticles measuring a few nanometers in diameter, instead of forming the well-known bismuth-oxyhalide nanoflowers. Subsequent calcination at 400 °C transforms the pristine titanate structures into one-dimensional anatase nanotubes, along with the formation of a heterojunction at the interface of the emerging Bi2Ti2O7 and anatase phases. The resulting nanocomposite shows activity in visible-light photocatalytic test reactions.

Original languageEnglish
Pages (from-to)16410-16422
Number of pages13
JournalRSC Advances
Volume7
Issue number27
DOIs
Publication statusPublished - 2017

Fingerprint

Photocatalysis
Titanium dioxide
Nanotubes
Heterojunctions
Titanium
Nanoflowers
Nanoparticles
Bismuth
Organic pollutants
Photocatalysts
Platelets
Charge carriers
Calcination
Nanocomposites
Semiconductor materials
Decomposition
titanium dioxide

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Titania nanotube stabilized BiOCl nanoparticles in visible-light photocatalysis. / Buchholcz, B.; Haspel, H.; Oszkó, A.; Kukovecz, Á.; Kónya, Z.

In: RSC Advances, Vol. 7, No. 27, 2017, p. 16410-16422.

Research output: Contribution to journalArticle

@article{5c4234c39a564a23be35c136ea9cdc0e,
title = "Titania nanotube stabilized BiOCl nanoparticles in visible-light photocatalysis",
abstract = "Photocatalysis is a green approach in environmental organic pollutant decomposition. Lately, considerable improvement in the activity of photocatalysts has been achieved with the realization of p-n heterostructures due to the lifetime extension of the photogenerated charge carriers. Herein, we report a facile synthesis approach for decorating n-type titanate nanotubes with p-type V-VI-VII compound semiconductor BiOCl nanoparticles. It is well-known that BiOX (X = Cl, Br, I) materials form nanometer-thick platelets, which can eventually assemble into micrometer size flower-like 3D structures. Here, we demonstrate that the tubular titanate support can stabilize BiOCl on its surface in the form of nanoparticles measuring a few nanometers in diameter, instead of forming the well-known bismuth-oxyhalide nanoflowers. Subsequent calcination at 400 °C transforms the pristine titanate structures into one-dimensional anatase nanotubes, along with the formation of a heterojunction at the interface of the emerging Bi2Ti2O7 and anatase phases. The resulting nanocomposite shows activity in visible-light photocatalytic test reactions.",
author = "B. Buchholcz and H. Haspel and A. Oszk{\'o} and {\'A}. Kukovecz and Z. K{\'o}nya",
year = "2017",
doi = "10.1039/c6ra28490f",
language = "English",
volume = "7",
pages = "16410--16422",
journal = "RSC Advances",
issn = "2046-2069",
publisher = "Royal Society of Chemistry",
number = "27",

}

TY - JOUR

T1 - Titania nanotube stabilized BiOCl nanoparticles in visible-light photocatalysis

AU - Buchholcz, B.

AU - Haspel, H.

AU - Oszkó, A.

AU - Kukovecz, Á.

AU - Kónya, Z.

PY - 2017

Y1 - 2017

N2 - Photocatalysis is a green approach in environmental organic pollutant decomposition. Lately, considerable improvement in the activity of photocatalysts has been achieved with the realization of p-n heterostructures due to the lifetime extension of the photogenerated charge carriers. Herein, we report a facile synthesis approach for decorating n-type titanate nanotubes with p-type V-VI-VII compound semiconductor BiOCl nanoparticles. It is well-known that BiOX (X = Cl, Br, I) materials form nanometer-thick platelets, which can eventually assemble into micrometer size flower-like 3D structures. Here, we demonstrate that the tubular titanate support can stabilize BiOCl on its surface in the form of nanoparticles measuring a few nanometers in diameter, instead of forming the well-known bismuth-oxyhalide nanoflowers. Subsequent calcination at 400 °C transforms the pristine titanate structures into one-dimensional anatase nanotubes, along with the formation of a heterojunction at the interface of the emerging Bi2Ti2O7 and anatase phases. The resulting nanocomposite shows activity in visible-light photocatalytic test reactions.

AB - Photocatalysis is a green approach in environmental organic pollutant decomposition. Lately, considerable improvement in the activity of photocatalysts has been achieved with the realization of p-n heterostructures due to the lifetime extension of the photogenerated charge carriers. Herein, we report a facile synthesis approach for decorating n-type titanate nanotubes with p-type V-VI-VII compound semiconductor BiOCl nanoparticles. It is well-known that BiOX (X = Cl, Br, I) materials form nanometer-thick platelets, which can eventually assemble into micrometer size flower-like 3D structures. Here, we demonstrate that the tubular titanate support can stabilize BiOCl on its surface in the form of nanoparticles measuring a few nanometers in diameter, instead of forming the well-known bismuth-oxyhalide nanoflowers. Subsequent calcination at 400 °C transforms the pristine titanate structures into one-dimensional anatase nanotubes, along with the formation of a heterojunction at the interface of the emerging Bi2Ti2O7 and anatase phases. The resulting nanocomposite shows activity in visible-light photocatalytic test reactions.

UR - http://www.scopus.com/inward/record.url?scp=85015859493&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85015859493&partnerID=8YFLogxK

U2 - 10.1039/c6ra28490f

DO - 10.1039/c6ra28490f

M3 - Article

AN - SCOPUS:85015859493

VL - 7

SP - 16410

EP - 16422

JO - RSC Advances

JF - RSC Advances

SN - 2046-2069

IS - 27

ER -