Facile synthesis of rhombic dodecahedral AgX/Ag3PO4 (X = Cl, Br, I) heterocrystals with enhanced photocatalytic properties and stabilities

Bi, Yingpu; Ouyang, Shuxin; Cao, Junyu; Ye, Jinhua

doi:10.1039/c1cp20488b

Cited by 530 publications

(307 citation statements)

References 42 publications

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“…The double-transfer mechanism is a common separation process for a large amount of composite photocatalysts, such as Ag2O/g-C3N4 composites [22]. If the Ag3PO4/g-C3N4 heterojunctions follow this mechanism, the schematic diagram of Ag3PO4/g-C3N4 can been seen in Figure 13a, as the potentials of the CB and VB edges of the g-C3N4 are −1.30 eV and +1.40 eV (vs. NHE), respectively, and the CB and VB edge potentials of the Ag3PO4 are +0.45 eV and +2.90 eV (vs. NHE), respectively [52,53]. Electrons in the CB of g-C3N4 would transfer to that of the Ag3PO4, and the holes accumulate on the VB of g-C3N4.…”

Section: Proposed Mechanismsmentioning

confidence: 99%

Synthesis of Ag3PO4/G-C3N4 Composite with Enhanced Photocatalytic Performance for the Photodegradation of Diclofenac under Visible Light Irradiation

et al. 2018

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Abstract:A new visible-light-driven heterojunction Ag 3 PO 4 /g-C 3 N 4 was prepared by a simple deposition-precipitation method for the degradation analysis of diclofenac (DCF), a model drug component, under visible-light irradiation. The heterojunction photocatalysts were characterized by a suite of tools. The results revealed that the introduction of Ag 3 PO 4 on the surface of g-C 3 N 4 greatly promoted its stability and light absorption performance. In addition, the effects of the heterojunction mixing ratios were studied, when the molar ratio of Ag 3 PO 4 to g-C 3 N 4 in the composite was 30%, the as-prepared photocatalyst Ag 3 PO 4 /g-C 3 N 4 (30%) possessed the best photocatalytic activity toward the photodegradation of DCF, and the optimal photocatalyst showed a DCF degradation rate of 0.453 min −1 , which was almost 34.8 and 6.4 times higher than those of pure g-C 3 N 4 (0.013 min −1 ) and Ag 3 PO 4 (0.071 min −1 ) under visible light irradiation (λ ≥ 400 nm). The trapping experimental results showed that h + , ·OH, and ·O 2 − were the main reactive oxygen species during the photocatalytic reaction. The improved performance of the composites was induced by the high charge separation efficiency of the photogeneration electron-hole pairs as well as the surface plasmon resonance (SPR) endowed in the Ag 0 nanoparticles, and ultimately enhanced the DCF photodegradation.

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Section: Proposed Mechanismsmentioning

confidence: 99%

Synthesis of Ag3PO4/G-C3N4 Composite with Enhanced Photocatalytic Performance for the Photodegradation of Diclofenac under Visible Light Irradiation

et al. 2018

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“…The morphology modification, including controls of the size, shape, and surface structures, determines the chemical reactions efficiency and selectivity in heterogeneous photocatalysis through changing some physicochemical properties, such as face-specific reactant molecular adsorption and interfacial charge transfer [222][223][224][225][226][227][228][229]. Therefore, morphology modification is an important variable that should be deliberately designed to achieve prompted photocatalytic properties.…”

Section: Modification Of Morphologymentioning

confidence: 99%

Regulations of silver halide nanostructure and composites on photocatalysis

Fan

Han

Song

et al. 2017

Adv Compos Hybrid Mater

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The silver halides and their corresponding composites would constitute remarkable photocatalytic systems not only in energy production but also in environmental remediation. The major advantage in these silver halides system is that plasma metal Ag 0 species would be spontaneously generated by silver halides under light irradiation, which play dual roles of expanding light absorption range and charge carriers separation. In this tutorial review, the origin and development of silver halides, synthesis methods, construction of composite structures with other materials, photocatalytic applications, and various and controversial mechanisms are all exhaustively described.

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“…Therefore, it is highly desirable to develop effective strategies to improve the stability of the Ag 3 PO 4 photocatalyst. Recent reports indicated that AgX (X=Cl, Br, I) nanoshells on the surface of Ag 3 PO 4 can enhance their photocatalytic properties and stability 23 . Furthermore, carbon quantum dots 24 , graphene oxide 25,26 , TiO 2 [27] , Bi 2 MoO 6 [28] , SnO 2 [29] and Fe 3 O 4 [30] were successfully used to form Ag 3 PO 4 based hybrid nanostructures for getting enhanced photocatalytic activity and stability.…”

Section: Introductionmentioning

confidence: 99%

One-step Synthesis of Ag3PO4/Ag Photocatalyst with Visible-light Photocatalytic Activity

Huang

Zhang

et al. 2015

Mat. Res.

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Facile synthesis of rhombic dodecahedral AgX/Ag3PO4 (X = Cl, Br, I) heterocrystals with enhanced photocatalytic properties and stabilities

Cited by 530 publications

References 42 publications

Synthesis of Ag3PO4/G-C3N4 Composite with Enhanced Photocatalytic Performance for the Photodegradation of Diclofenac under Visible Light Irradiation

Synthesis of Ag3PO4/G-C3N4 Composite with Enhanced Photocatalytic Performance for the Photodegradation of Diclofenac under Visible Light Irradiation

Regulations of silver halide nanostructure and composites on photocatalysis

One-step Synthesis of Ag3PO4/Ag Photocatalyst with Visible-light Photocatalytic Activity

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