Issue 33, 2020, Issue in Progress

Promoting the photocatalytic activity of Bi4Ti3O12 microspheres by incorporating iron

Abstract

Small amounts of Fe(NO3)3 were added to the synthesis mixture prior to the hydrothermal synthesis of Bi4Ti3O12 microspheres. The physicochemical properties of the resulting materials were changed accordingly. The photocatalytic activities of several samples were studied through the photocatalytic degradation of organic pollutants. The samples with a theoretical Fe atomic percentage of 5.9% showed the highest photocatalytic activity among these samples. The main active species in photocatalytic degradation was demonstrated by radical capturing experiments as h+. The introduction of a suitable amount of Fe to the photocatalyst can facilitate the separation of electron–hole pairs generated upon light irradiation, inhibit their recombination efficiently, and prominently expand the light absorption region, thus leading to higher photocatalytic activity.

Graphical abstract: Promoting the photocatalytic activity of Bi4Ti3O12 microspheres by incorporating iron

Supplementary files

Article information

Article type
Paper
Submitted
13 Apr 2020
Accepted
08 May 2020
First published
20 May 2020
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2020,10, 19232-19239

Promoting the photocatalytic activity of Bi4Ti3O12 microspheres by incorporating iron

Z. Liu and Z. Ma, RSC Adv., 2020, 10, 19232 DOI: 10.1039/D0RA03305G

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