Photocatalytic, Fenton and photo-Fenton degradation of RhB over Z-scheme g-C3N4/LaFeO3 heterojunction photocatalysts

Ye, Yong‐Chun; Yang, Hua; Wang, Xiangxian; Feng, Wei

doi:10.1016/j.mssp.2018.03.033

Cited by 175 publications

(27 citation statements)

References 57 publications

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“…20,50 The reformed CB edge potential of AgBr (À0.37 eV) is more negative than the standard redox potential of O 2 /$O 2 À (À0.33 eV vs. NHE). 51 As a result, the photogenerated e À can react with O 2 to form $O 2 À , then, $O 2 À further reacts with H + to produce $OH. In the meanwhile, the excited electron in the CB of BOB will combine with the photogenerated hole of AgBr.…”

Section: Photocatalytic Mechanism Of Ab/bob Compositesmentioning

confidence: 99%

Fabrication of novel AgBr/Bi₂₄O₃₁Br₁₀composites with excellent photocatalytic performance

Xia

2018

RSC Adv.

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Section: Photocatalytic Mechanism Of Ab/bob Compositesmentioning

confidence: 99%

Fabrication of novel AgBr/Bi₂₄O₃₁Br₁₀composites with excellent photocatalytic performance

Xia

2018

RSC Adv.

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“…The bulk g-C 3 N 4 was prepared by directly heating melamine in a semiclosed system 27 . Briefly, about 5 g of melamine was put into a corundum boat with a cover and calcinated at 520 ºC for 4 h. After the reaction, the product was ground and collected for further use.…”

Section: Synthesis Of G-c 3 N 4 Nanoparticlesmentioning

confidence: 99%

Enhanced Photocatalytic Degradation Activity of BiFeO3 Microspheres by Decoration with g-C3N4 Nanoparticles

Yang

Tang

et al. 2018

Mat. Res.

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In this work, the g-C 3 N 4 nanoparticles decorated BiFeO 3 microspheres composites (g-C 3 N 4 / BiFeO 3 ) were successfully synthesized by hydrothermal treatment of g-C 3 N 4 nanoparticles together with BiFeO 3 microspheres. The SEM and HRTEM observation indicate that the C 3 N 4 nanoparticles with size of 30-50 nm are well decorated on the surface of BiFeO 3 microspheres. The photocatalytic activities of the samples are investigated by the degradation of methylene blue (MB) under the irradiation of simulated sunlight. The as-prepared g-C 3 N 4 /BiFeO 3 composites exhibit remarkable enhanced photocatalytic activity compared with bare BiFeO 3 . More importantly, the photocataltic performance of the composites is further confirmed by the degradation of colorless phenol. Furthermore, the favorable catalytic stability of composites is demonstrated through the recycling photocatalytic experiment. The enhanced photocatalytic activity of g-C 3 N 4 /BiFeO 3 composites is mainly attributed to the separation of the photogenerated electron-hole pairs, resulting from the migration of the photoinduced charge between g-C 3 N 4 nanoparticles and BiFeO 3 . A possible photocatalytic mechanism for dye degradation over g-C 3 N 4 /BiFeO 3 composite is proposed based on the active species trapping experiment, revealing that the photogenerated hole (h + ) and hydrogen peroxide (H 2 O 2 ) are regarded as the major active species for the decomposition of dye, while hydroxyl radicals (•OH) plays a minor role in the photocatalytic reaction.

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“…Nowadays, LaFeO 3 /g-C 3 N 4 Z-scheme heterojunctions have been fabricated to promote the separation efficiency of photoinduced carriers and to enhance the photocatalytic activities [38]. The photocatalytic activities, including degradation performance and hydrogen evolution rate, of LaFeO 3 /g-C 3 N 4 heterojunctions were much higher than that of pure LaFeO 3 and g-C 3 N 4 under visible light irradiation [39][40][41][42][43].…”

Section: Introductionmentioning

confidence: 99%

Superior Adsorption and Photocatalytic Degradation Capability of Mesoporous LaFeO3/g-C3N4 for Removal of Oxytetracycline

Yang

Ruan

et al. 2020

Catalysts

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Mesoporous LaFeO3/g-C3N4 Z-scheme heterojunctions (LFC) were synthesized via the incorporation of LaFeO3 nanoparticles and porous g-C3N4 ultrathin nanosheets. The as prepared LFC were characterized by transmission electron microscopy, scanning electron microscopy, atomic force microscopy, X-ray photoelectron spectroscopy, powder X-ray diffraction, Raman spectra and N2 adsorption analysis. The structural analysis indicated that the reheating process and the addition of NH4Cl in the thermal polymerization were the key factors to get porous g-C3N4 ultrathin nanosheets and to obtain high specific surface areas of LFC. It remarkably enhanced the adsorption capacity and photocatalytic degradation of LFC for removal of oxytetracycline (OTC). The effect of the mass percentage of LaFeO3 in LFC, pH and temperature on the OTC adsorption was investigated. The LaFeO3/g-C3N4 heterojunction with 2 wt % LaFeO3 (2-LFC) exhibited highest saturated adsorption capacity (101.67 mg g−1) and largest photocatalytic degradation rate constant (1.35 L g−1 min−1), which was about 9 and 5 times higher than that of bulk g-C3N4 (CN), respectively. This work provided a facile method to prepare mesoporous LaFeO3/g-C3N4 heterojunctions with especially well adsorption and photocatalytic activities for OTC, which can facilitate its practical applications in pollution control.

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Photocatalytic, Fenton and photo-Fenton degradation of RhB over Z-scheme g-C3N4/LaFeO3 heterojunction photocatalysts

Cited by 175 publications

References 57 publications

Fabrication of novel AgBr/Bi₂₄O₃₁Br₁₀composites with excellent photocatalytic performance

Fabrication of novel AgBr/Bi₂₄O₃₁Br₁₀composites with excellent photocatalytic performance

Enhanced Photocatalytic Degradation Activity of BiFeO3 Microspheres by Decoration with g-C3N4 Nanoparticles

Superior Adsorption and Photocatalytic Degradation Capability of Mesoporous LaFeO3/g-C3N4 for Removal of Oxytetracycline

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Photocatalytic, Fenton and photo-Fenton degradation of RhB over Z-scheme g-C3N4/LaFeO3 heterojunction photocatalysts

Cited by 175 publications

References 57 publications

Fabrication of novel AgBr/Bi24O31Br10composites with excellent photocatalytic performance

Fabrication of novel AgBr/Bi24O31Br10composites with excellent photocatalytic performance

Enhanced Photocatalytic Degradation Activity of BiFeO3 Microspheres by Decoration with g-C3N4 Nanoparticles

Superior Adsorption and Photocatalytic Degradation Capability of Mesoporous LaFeO3/g-C3N4 for Removal of Oxytetracycline

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Fabrication of novel AgBr/Bi₂₄O₃₁Br₁₀composites with excellent photocatalytic performance

Fabrication of novel AgBr/Bi₂₄O₃₁Br₁₀composites with excellent photocatalytic performance