Titania nanotube stabilized BiOCl nanoparticles in visible-light photocatalysis

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 repor...

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Elmentve itt :
Bibliográfiai részletek
Szerzők: Buchholcz Balázs
Haspel Henrik
Oszkó Albert Zoltán
Kukovecz Ákos
Kónya Zoltán
Dokumentumtípus: Cikk
Megjelent: 2017
Sorozat:RSC ADVANCES 7 No. 27
doi:10.1039/c6ra28490f

mtmt:3211576
Online Access:http://publicatio.bibl.u-szeged.hu/11474
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520 3 |a 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. © The Royal Society of Chemistry. 
700 0 1 |a Haspel Henrik  |e aut 
700 0 1 |a Oszkó Albert Zoltán  |e aut 
700 0 1 |a Kukovecz Ákos  |e aut 
700 0 1 |a Kónya Zoltán  |e aut 
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