Preparation and Photocatalytic Properties of β-Bi2O3/Bi2SiO5 Heterostructures

Oxide heterostructure photocatalysts Bi 2 O 3 /Bi 2 SiO 5 have been prepared by mechanical stirring of anhydrous bismuth nitrate and biogenic silica from rice husk (BiSi‑X, Х = 1–50% SiO 2 ) followed by calcination at 600°C. The materials were characterized by IR and electronic spectroscopy, X-ray p...

Full description

Saved in:
Bibliographic Details
Published in:Russian journal of inorganic chemistry 2021-06, Vol.66 (6), p.943-949
Main Authors: Arefieva, O. D., Vasilyeva, M. S., Lukiyanchuk, I. V., Sedinkina, E. S., Zemnukhova, L. A., Pisartseva, A. I.
Format: Article
Language:English
Subjects:
Bismuth oxides
Bismuth trioxide
Catalytic activity
Charge materials
Chemistry
Chemistry and Materials Science
Degradation
Dyes
Heterostructures
Infrared spectroscopy
Inorganic Chemistry
Inorganic Materials and Nanomaterials
Light irradiation
Morphology
Photocatalysis
Photocatalysts
Silicon dioxide
Ultraviolet radiation
X ray fluorescence analysis
X ray powder diffraction
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Oxide heterostructure photocatalysts Bi 2 O 3 /Bi 2 SiO 5 have been prepared by mechanical stirring of anhydrous bismuth nitrate and biogenic silica from rice husk (BiSi‑X, Х = 1–50% SiO 2 ) followed by calcination at 600°C. The materials were characterized by IR and electronic spectroscopy, X-ray powder diffraction and X-ray fluorescence analysis. Effect of silica content on sample morphology has been determined. Zero-charge point for theses materials is in the range from 7.20 (BiSi-1) to 8.64 (BiSi-50). The photocatalytic activity of the samples in the reaction of Methyl Orange degradation under exposure to UV and sun radiation has been studied. Degradation degree of Methyl Orange under sun light irradiation has been shown to be 27% and is independent of sample composition. The range of SiO 2 content (23–39%) in photocatalysts samples, which provides 78–87% Methyl Orange degradation degree under UV irradiation, has been found.
ISSN:0036-0236
1531-8613
DOI:10.1134/S0036023621060036