Photocatalytic Degradation of Deoxynivalenol Using Cerium Doped Titanium Dioxide under Ultraviolet Light Irradiation

Deoxynivalenol (DON) is a major mycotoxin with high toxicity that often contaminates grains, foods and feeds. The traditional approaches for DON removal are difficult to meet industry and agriculture demands due to the high stability of the DON molecule. Therefore, there is an urgent need to develop...

Full description

Saved in:
Bibliographic Details
Published in:Toxins 2021-07, Vol.13 (7), p.481
Main Authors: He, Pengzhen, Zhao, Zhiyong, Tan, Yanglan, E, Hengchao, Zuo, Minghui, Wang, Jianhua, Yang, Junhua, Cui, Shuxin, Yang, Xianli
Format: Article
Language:English
Subjects:
Aqueous solutions
Atoms & subatomic particles
Bands
Catalysis
Catalysts
Catalytic activity
Cerium
Cerium - chemistry
cerium doped titanium dioxide
Degradation
Deoxynivalenol
Energy
Food contamination
Irradiation
Light
Light irradiation
mechanism
Morphology
Mycotoxins
Nanomaterials
Nanoparticles
Nanostructures
Nanotechnology
Nitrogen
Particle size
pathway
Photocatalysis
Photocatalysts
photocatalytic degradation
Photodegradation
Sol-gel processes
Spectroscopy, Fourier Transform Infrared
Titanium
Titanium - chemistry
Titanium dioxide
Toxicity
Trichothecenes - chemistry
Ultraviolet radiation
Ultraviolet Rays
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:Deoxynivalenol (DON) is a major mycotoxin with high toxicity that often contaminates grains, foods and feeds. The traditional approaches for DON removal are difficult to meet industry and agriculture demands due to the high stability of the DON molecule. Therefore, there is an urgent need to develop green and effective strategies for DON degradation. In this study, a batch of photocatalytic nanomaterials of cerium (Ce) doped titanium dioxide (TiO ) were successfully prepared by sol-gel method. The catalysts were systematically characterized by XRD, HRTEM, FT-IR, UV-Vis and XPS. The catalyst 0.5Ce-TiO showed superior photocatalytic activity for DON degradation in aqueous solution under ultraviolet light irradiation, better than that of traditional photocatalyst pure TiO , and 96% DON with initial concentration of 5.0 mg/L could be degraded in 4 h. In addition, the two possible degradation intermediate products C H O and C H O were identified, the photocatalytic degradation mechanism and degradation pathway were studied. The results indicate that Ce doped TiO photocatalyst can be used to reduce DON effectively.
ISSN:2072-6651
2072-6651
DOI:10.3390/toxins13070481