Synthesis of a Novel Photocatalyst MVO4/g-C3N4 (M = La, Gd) with Better Photocatalytic Activity for Tetracycline Hydrochloride Degradation under Visible-Light Irradiation

In this study, novel photocatalysts MVO4/g-C3N4 (M = La, Gd) were prepared by the hydrothermal method, through which different loading amounts of 10–50%MVO4 and g-C3N4 were mixed and ultrasonically oscillated to gain heterojunction catalysts. All the samples were characterized by XRD, SEM, TEM, FT-I...

Full description

Saved in:
Bibliographic Details
Published in:Crystals (Basel) 2021-07, Vol.11 (7), p.756
Main Authors: Zhu, Zhengru, Han, Songlin, Cao, Yongqiang, Jiang, Junchao
Format: Article
Language:English
Subjects:
antibiotic degradation
Antibiotics
Aqueous solutions
Carbon nitride
Catalytic activity
Caustic soda
Efficiency
Fourier transforms
Gadolinium
graphitic carbon nitride
heterojunction photocatalyst
Heterojunctions
Light irradiation
Morphology
Nitrates
Performance degradation
Photocatalysis
Photocatalysts
Photodegradation
Scanning electron microscopy
Spectrum analysis
vanadate
X ray photoelectron spectroscopy
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:In this study, novel photocatalysts MVO4/g-C3N4 (M = La, Gd) were prepared by the hydrothermal method, through which different loading amounts of 10–50%MVO4 and g-C3N4 were mixed and ultrasonically oscillated to gain heterojunction catalysts. All the samples were characterized by XRD, SEM, TEM, FT-IR, XPS, Us-vis, and PL to ensure the successful integration of LaVO4 and GdVO4 with g-C3N4. The obtained results showed that MVO4/g-C3N4 could effectually improve the separation efficiency of photogenerated carriers during the photodegradation process, thus improving the photodegradation efficiency, while among them, 40%GdVO4/g-C3N4 showed the best photocatalytic performance and degradation of tetracycline hydrochloride, reaching up to 91% for 3 h, which was 3.64 times higher than pristine g-C3N4. From the discussed results above, the possible mechanism of the photodegradation process was put forward. This study supplies a promising method to gain g-C3N4-based photocatalysts for antibiotics removal.
ISSN:2073-4352
2073-4352
DOI:10.3390/cryst11070756