Sonochemical Synthesis of Copper-doped BiVO4/g-C3N4 Nanocomposite Materials for Photocatalytic Degradation of Bisphenol A under Simulated Sunlight Irradiation

Copper-doped bismuth vanadate/graphitic carbon nitride (BiVO4/g-C3N4) nanocomposite materials were successfully fabricated using a sonochemical approach. Cu-doped BiVO4/g-C3N4 nanocomposite photocatalysts could improve electron/hole (e−/h+) pair separation, stability, and light-harvesting efficiency...

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Published in:Nanomaterials (Basel, Switzerland) Switzerland), 2020-03, Vol.10 (3), p.498
Main Authors: Lee, Gang-Juan, Lee, Xin-Yu, Lyu, Cong, Liu, Na, Andandan, Sambandam, Wu, Jerry J.
Format: Article
Language:English
Subjects:
Bismuth oxides
Bisphenol A
Carbon nitride
Catalytic activity
Composite materials
composite nanomaterials
Copper
Efficiency
Graphene
Irradiation
Nanocomposites
Nanoparticles
Nitrates
Organic chemicals
Particle size
Photocatalysis
Photocatalysts
photocatalytic degradation
Photodegradation
Polyethylene glycol
Scheelite
Semiconductors
sonochemical synthesis
Surfactants
Vanadate
Vanadates
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Summary:Copper-doped bismuth vanadate/graphitic carbon nitride (BiVO4/g-C3N4) nanocomposite materials were successfully fabricated using a sonochemical approach. Cu-doped BiVO4/g-C3N4 nanocomposite photocatalysts could improve electron/hole (e−/h+) pair separation, stability, and light-harvesting efficiency compared to pristine BiVO4 or g-C3N4, resulting in the enhancement of photocatalytic activity. The optimal parameters, such as pH value at 10, photocatalyst dosage of 0.4 g L−1, and 10 mol% Cu-doped BiVO4/g-C3N4 photocatalyst, were determined to degrade initial concentration of 20 ppm Bisphenol A, which could be completely removed after 90 min. Furthermore, the excessive doping of copper (> 10 mol%) could not synthesize the pure monoclinic scheelite phase, which substantially resulted in the reduction of the photocatalytic activity.
ISSN:2079-4991
2079-4991
DOI:10.3390/nano10030498