Journal ArticleDOI
Hierarchical assembly of graphene-bridged Ag3PO4/Ag/BiVO4 (040) Z-scheme photocatalyst: An efficient, sustainable and heterogeneous catalyst with enhanced visible-light photoactivity towards tetracycline degradation under visible light irradiation
Fei Chen,Qi Yang,Xiaoming Li,Guangming Zeng,Dongbo Wang,Cheng-Gang Niu,Jianwei Zhao,Hongxue An,Ting Xie,Yaocheng Deng +9 more
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In this paper, a novel graphene-bridged Ag3PO4/Ag/BiVO4 (040) Z-scheme heterojunction with excellent visible-light-driven photocatalytic performance was fabricated using a facile in situ deposition method followed by photo-reduction.Abstract:
A novel graphene-bridged Ag3PO4/Ag/BiVO4 (040) Z-scheme heterojunction with excellent visible-light-driven photocatalytic performance was fabricated using a facile in situ deposition method followed by photo-reduction. The as-obtained nanocomposite was employed to degrade tetracycline (TC) in water under visible light irradiation. Compared to pure BiVO4, Ag3PO4 and other nanocomposites, Ag/Ag3PO4/BiVO4/RGO displayed more superior photodegradation efficiency with 94.96% removal of TC (10 mg/L) in 60 min, where the optimal conditions was catalysis dosage 0.50 g/L and initial pH at ca. 6.75. The influences of TC concentrations, light irradiation condition, coexistence ions and water sources were also investigated in details. The enhanced photocatalytic activities could be attributed to the suppression of charge recombination, high specific surface area and desirable absorption capability of Ag/Ag3PO4/BiVO4/RGO, which were in sequence confirmed by PL, PC, EIS, BET and DRS tests. The synergistic effects of RGO and Ag/Ag3PO4 in the hybrid could also contribute to the improved photo-stability and recyclability towards TC decomposition. In addition, radical trapping experiments and ESR measurement revealed that the photo-induced active species superoxide radical ( O2−) and holes (h+) were the predominant active species in the photocatalytic system. The Ag/Ag3PO4/BiVO4/RGO nanocomposite also possessed desirable photocatalytic performance on the degradation of TC from real wastewater, further verifying its potential in practical industries. This work provides a promising approach to construct visible-light response and more stabilized nanocomposite photocatalysts applied in efficient treatment of persistent pollutants in wastewater.read more
Citations
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Deposition of perovskite-type LaFeO3 particles on spherical commercial polystyrene resin: A new platform for enhanced photo-Fenton-catalyzed degradation and simultaneous wastewater purification
TL;DR: In this paper, perovskite LaFeO3 nanoparticles were deposited on Diaion TM HP21 resin via a facile hydrothermal process and the heterostructured catalyst exhibited enhanced ultraviolet-visible light absorption efficiency, photocatalytic, Fenton and photo-Fenton catalytic activities towards tetracycline antibiotic.
Journal ArticleDOI
Progress in Graphene/Metal Oxide Composite Photocatalysts for Degradation of Organic Pollutants
TL;DR: In this article, a review of the recent progress of graphene/metal oxide composites including binary and ternary composites is summarized in detail, including the synthesis, microstructure design, and application performance of the binary composites, including graphene/TiO2, graphene/ZnO, and graphene/SnO2.
Journal ArticleDOI
Biomass-Derived Carbon Quantum Dots Modified Bi2moo6/Bi2s3 Heterojunction for Efficient Photocatalytic Removal of Organic Pollutants and Cr(Ⅵ)
Journal ArticleDOI
Improved photocatalytic activities of porous In2O3 with large surface area by coupling with K-modified CuO for degrading pollutants
TL;DR: In this article, a K-modified CuO/In2O3 nanocomposite was proposed for degrading 2,4-dichlorophenol (2.4-DCP), which achieved a rather high photocatalytic activity for degradation.
Journal ArticleDOI
Synergetic catalytic behavior of AgNi-OH-Pi nanostructures on Zr:BiVO4 photoanode for improved stability and photoelectrochemical water splitting performance
Maged N. Shaddad,Prabhakarn Arunachalam,Asma A. Alothman,Abeer M. Beagan,Matar Al-shalwi,Abdullah M. Al-Mayouf +5 more
TL;DR: In this article, the Ni-OH-Pi co-catalyst increased the photoelectrochemical (PEC) water oxidation and stability of photoanodes comprising silver phosphate (AgPi) on Zr:BiVO4 (AgNi-O-Pi/Zr: BiVO4).
References
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Dana W. Kolpin,Edward T. Furlong,Michael T. Meyer,E. Michael Thurman,Steven D. Zaugg,Larry B. Barber,Herbert T. Buxton +6 more
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Sara Rodríguez-Mozaz,Sara Chamorro,Elisabet Marti,Belinda Huerta,Meritxell Gros,Alexandre Sànchez-Melsió,Carles M. Borrego,Damià Barceló,José Luis Balcázar +8 more
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