Constructing heterojunction of BiPO4/SnS2 nano-flower with sharp-tips effect and bi-functional catalyst as a direct Z-scheme system for high-efficiency photocatalytic performance

Chou, Xiaoyu; Jin, Yongxing; Cui, Mi-Mi; He, Yanzhen; Li, Yudong

doi:10.1016/j.matchemphys.2019.122241

Cited by 17 publications

(9 citation statements)

References 53 publications

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“…To solve this problem, the size reduction of the Pt cocatalyst is in progress, which will help not only to promote the electronic interactions between the cocatalyst and support but also improve their catalytic activity. 58 The PHE performance of the ternary LaFeO 3 @NGr 3 -Pt 0.5 catalyst is further comparable to those of recently-reported catalysts (under visible-light irradiation), [59][60][61][62][63][64][65][66][67][68][69][70][71][72][73][74][75][76][77][78] as shown in Fig. 4e.…”

Section: Photocatalytic Phe Performancessupporting

confidence: 82%

LaFeO₃ meets nitrogen-doped graphene functionalized with ultralow Pt loading in an impactful Z-scheme platform for photocatalytic hydrogen evolution

et al. 2022

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Section: Photocatalytic Phe Performancessupporting

confidence: 82%

LaFeO₃ meets nitrogen-doped graphene functionalized with ultralow Pt loading in an impactful Z-scheme platform for photocatalytic hydrogen evolution

et al. 2022

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“…Most research using Bi-based Z-scheme photocatalysts can obtain good H 2 evolution yield. Chou et al [ 98 ] made SnS 2 self-growth on the BiPO 4 nanosheets to form three dimensions (3D) flower heterogeneous composite by a multi-step solvothermal method. According to the radical-trapping experiment results and band structure analysis, a Z-scheme heterojunction was formed between SnS 2 and BiPO 4 .…”

Section: Applications Of Bi-based Z-scheme Photocatalystsmentioning

confidence: 99%

A Mini Review on Bismuth-Based Z-Scheme Photocatalysts

Chen

Jian-rong

et al. 2020

Materials

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Recently, the bismuth-based (Bi-based) Z-scheme photocatalysts have been paid great attention due to their good solar energy utilization capacity, the high separation rate of their photogenerated hole-electron pairs, and strong redox ability. They are considerably more promising materials than single semiconductors for alleviating the energy crisis and environmental deterioration by efficiently utilizing sunlight to motivate various photocatalytic reactions for energy production and pollutant removal. In this review, the traits and recent research progress of Bi-based semiconductors and recent achievements in the synthesis methods of Bi-based direct Z-scheme heterojunction photocatalysts are explored. The recent photocatalytic applications development of Bi-based Z-scheme heterojunction photocatalysts in environmental pollutants removal and detection, water splitting, CO2 reduction, and air (NOx) purification are also described concisely. The challenges and future perspective in the studies of Bi-based Z-scheme heterojunction photocatalysts are discussed and summarized in the conclusion of this mini review.

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“…The estimated valence band and conduction band positions of Bi 2 WO 6 together with the redox potentials of some common ROS generation are given in Scheme . Notably, E VB of Bi 2 WO 6 (+2.22 V vs NHE) is more negative than that of E° (OH • /OH – ) , i.e., +2.40 V vs NHE), which implies that the photoinduced holes in the E VB of Bi 2 WO 6 are not suitable for oxidizing H 2 O to produce OH • radicals. On the other hand, the E CB of Bi 2 WO 6 ( − 0.69 V vs NHE) is more negative than that of the standard reduction potential for generation of superoxide radicals ( E ° ( O 2 / O 2 ‑ ) , i.e., – 0.33 V vs NHE, which is a favorable condition for generation of the superoxide radical anion (O 2 –• ) from dissolved oxygen (O 2 ) in the reaction medium.…”

Section: Resultsmentioning

confidence: 98%

Amine-Functionalized Crystalline Carbon Nanodots Decorated on Bi₂WO₆ Nanoplates as Solar Photocatalysts for Efficient Degradation of Tetracycline and Ciprofloxacin

Bisht

Kumar

Dutta

2022

Ind. Eng. Chem. Res.

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A bismuth tungstate (Bi 2 WO 6 ) nanoplate surface decorated with amine-functionalized crystalline carbon nanodots (ACCN) is developed as a sunlight responsive photocatalyst for degradation of tetracycline and ciprofloxacin antibiotics. The photocatalyst, named ACCN/Bi 2 WO 6 , has been thoroughly characterized to elucidate its structural, morphological, textural, and compositional aspects. The crystalline carbon nanodots are synthesized by hydrothermal treatment of ortho-phenylenediamine with a zwitterionic L-alanine, which offered doping of a large number of nitrogen atoms. Because of these features, compared to pristine Bi 2 WO 6 , the optimized batch of the photocatalyst prepared with 2 wt % ACCN (named 2-ACCN/Bi 2 WO 6 ) exhibited significantly enhanced degradation of tetracycline (96%) and ciprofloxacin (95%) within 75 min of sunlight exposure. The corresponding photocatalytic degradation rates are 0.030 and 0.027 min −1 , respectively. The mechanism involved in photocatalytic degradation is addressed in the light of ( a) enhanced absorption of sunlight by 2-ACCN/Bi 2 WO 6 , (b) favorable Z-scheme-like band positions of Bi 2 WO 6 and the HOMO−LUMO levels of ACCN, (c) large photocurrent density, (d) inhibition of charge carrier recombination and formation of reactive oxygen species (ROS), (e) in situ generation of a superoxide radical anion (O 2 −• ), confirmed by specific ROS scavenging studies, and (f) identification of intermediate products by ultraperformance liquid chromatography coupled to quadrupole time-of-flight mass spectrometry.

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Constructing heterojunction of BiPO4/SnS2 nano-flower with sharp-tips effect and bi-functional catalyst as a direct Z-scheme system for high-efficiency photocatalytic performance

Cited by 17 publications

References 53 publications

LaFeO₃ meets nitrogen-doped graphene functionalized with ultralow Pt loading in an impactful Z-scheme platform for photocatalytic hydrogen evolution

LaFeO₃ meets nitrogen-doped graphene functionalized with ultralow Pt loading in an impactful Z-scheme platform for photocatalytic hydrogen evolution

A Mini Review on Bismuth-Based Z-Scheme Photocatalysts

Amine-Functionalized Crystalline Carbon Nanodots Decorated on Bi₂WO₆ Nanoplates as Solar Photocatalysts for Efficient Degradation of Tetracycline and Ciprofloxacin

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Constructing heterojunction of BiPO4/SnS2 nano-flower with sharp-tips effect and bi-functional catalyst as a direct Z-scheme system for high-efficiency photocatalytic performance

Cited by 17 publications

References 53 publications

LaFeO3 meets nitrogen-doped graphene functionalized with ultralow Pt loading in an impactful Z-scheme platform for photocatalytic hydrogen evolution

LaFeO3 meets nitrogen-doped graphene functionalized with ultralow Pt loading in an impactful Z-scheme platform for photocatalytic hydrogen evolution

A Mini Review on Bismuth-Based Z-Scheme Photocatalysts

Amine-Functionalized Crystalline Carbon Nanodots Decorated on Bi2WO6 Nanoplates as Solar Photocatalysts for Efficient Degradation of Tetracycline and Ciprofloxacin

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Product

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LaFeO₃ meets nitrogen-doped graphene functionalized with ultralow Pt loading in an impactful Z-scheme platform for photocatalytic hydrogen evolution

LaFeO₃ meets nitrogen-doped graphene functionalized with ultralow Pt loading in an impactful Z-scheme platform for photocatalytic hydrogen evolution

Amine-Functionalized Crystalline Carbon Nanodots Decorated on Bi₂WO₆ Nanoplates as Solar Photocatalysts for Efficient Degradation of Tetracycline and Ciprofloxacin