Issue 6, 2024

Synthesis and photocatalytic activity of LaTiO2N using titanium oxide nanosheet/La3+ hybrids as a precursor

Abstract

LaTiO2N, which has attracted attention as a promising candidate for photocatalytic water splitting, was synthesized through a method that utilized a titania nanosheet/La3+/La(OH)3 hybrid system as a precursor. Through FE-SEM and HAADF-STEM measurements with atomic resolution, it has been revealed that LaTiO2N possesses a nano-particle morphology characterized by highly crystalline particles in the size range of 5–20 nm, which aggregate to form larger nano-particles with sizes ranging from 50 to 100 nm. The BET surface area of the LaTiO2N was 30.3 m2 g−1. Compared to the photocatalytic O2 evolution activity in the presence of the sacrificial agent of LaTiO2N synthesized from La2Ti2O7, the LaTiO2N synthesized from the titania nanosheet/La3+/La(OH)3 hybrids exhibited three times higher O2 evolution activity (AQY: 1.3%) under light irradiation with a wavelength of 420 nm.

Graphical abstract: Synthesis and photocatalytic activity of LaTiO2N using titanium oxide nanosheet/La3+ hybrids as a precursor

Supplementary files

Article information

Article type
Paper
Submitted
22 Des. 2023
Accepted
07 Feb. 2024
First published
21 Feb. 2024

Sustainable Energy Fuels, 2024,8, 1269-1279

Synthesis and photocatalytic activity of LaTiO2N using titanium oxide nanosheet/La3+ hybrids as a precursor

X. Tao, T. Tsugawa, K. Hatakeyama and S. Ida, Sustainable Energy Fuels, 2024, 8, 1269 DOI: 10.1039/D3SE01684F

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