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Current Nanoscience

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ISSN (Print): 1573-4137
ISSN (Online): 1875-6786

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Research Article

Facile Synthesis and Enhanced Photocatalytic Properties of La2O3/SrSn(OH)6 Nanorods

Author(s): Yong Zhang, Lihong Zhuang, Feihu Tao, Zeyang Xue and Lizhai Pei*

Volume 19, Issue 3, 2023

Published on: 06 September, 2022

Page: [449 - 458] Pages: 10

DOI: 10.2174/1573413718666220701150802

Price: $65

Abstract

Background: The efficient removal of the environmental organic pollutants using the photocatalytic technology catalyzed by semiconductors has attracted great research interest in recent years. La2O3/SrSn(OH)6 nanorods show enhanced photocatalytic activity towards crystal violet (CV).

Objective: The aim of this study is to obtain La2O3/SrSn(OH)6 nanorods by a simple hydrothermal route using lanthanum acetate and SrSn(OH)6 nanorods, and explore the photocatalytic properties for CV degradation.

Methods: La2O3/SrSn(OH)6 nanorods were obtained by a hydrothermal route using lanthanum acetate and SrSn(OH)6 nanorods and characterized by X-ray diffraction (XRD), transmission electron microscopy, X-ray photoelectron spectroscopy (XPS), diffuse reflectance spectroscopy (DRS), photoluminescence (PL) and photocatalytic experiments.

Results: The composite nanorods comprise hexagonal SrSn(OH)6 and cubic La2O3 phases. Some nanoscale particles attach to the surface of the nanorods with a diameter and length of about 100 nm and 1 μm, respectively. La2O3/SrSn(OH)6 nanorods show a lower band gap value than the SrSn(OH)6 nanorods. The photocatalytic reaction rate constant for the CV degradation using 15wt.%- La2O3/SrSn(OH)6 nanorods is 3 times higher than that of the pure nanorods.

Conclusion: La2O3/SrSn(OH)6 nanorods possess good reusability and stability for CV removal. The photocatalytic activity for the CV removal of the SrSn(OH)6 nanorods can be greatly enhanced by La2O3.

Keywords: La2O3, SrSn(OH)6 nanorods, transmission electron microscopy, crystal violet, photocatalytic properties, environmental organic pollutants, semiconductor photocatalysts.

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