Visible light Bi2S3/Bi2O3/Bi2O2CO3 photocatalyst for effective degradation of organic pollutions

Huang, Yongchao; Fan, Wenjie; Li, Haibo; Zhao, Fengyi; Liu, Zili; Ji, Hongbing

doi:10.1016/j.apcatb.2015.11.043

Cited by 314 publications

(85 citation statements)

References 40 publications

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“…Environmental pollution problems facing the world today have attracted much attention and are getting worse . Since Fujishima demonstrated the photocatalysis with TiO 2 under UV‐light irradiation in 1970s, semiconductor‐based photocatalytic technique has been considered to be one of the reliable and ultimate solutions to dealing with global environmental pollution . TiO 2 is a famous semiconductor owning improved photocatalytic activities for the oxidative degradation of organic compounds .…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of BiOBr/Bi₂Sn₂O₇ Heterojunction Photocatalysts with Improved Photocatalytic Activities

Zhang

et al. 2016

J. Am. Ceram. Soc.

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BiOBr/Bi2Sn2O7 heterojunction photocatalysts were successfully synthesized by treating hydrothermal as‐prepared Bi2Sn2O7 nanoparticles with hydrobromic acid (HBr). Partial Bi2Sn2O7 nanoparticles reacted with HBr to form the sheet‐like BiOBr, and Bi2Sn2O7 nanoparticles distributed evenly on BiOBr sheets. BiOBr/Bi2Sn2O7 photocatalysts treated with different concentrations of HBr solution were successfully obtained, and their structures, morphologies, optical, and visible light photocatalytic properties were characterized by XRD, DRS, PL, SEM, and TEM. The experimental results showed that the BiOBr/Bi2Sn2O7 photocatalysts showed improved photocatalytic activity under visible light irradiation than pure Bi2Sn2O7. The sample treated with 0.08 mol/L HBr solution shows the best visible light photodegradation performance of rhodamine B. In addition, the active species and photocatalytic mechanism were discussed in detail.

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Section: Introductionmentioning

confidence: 99%

Facile Synthesis of BiOBr/Bi₂Sn₂O₇ Heterojunction Photocatalysts with Improved Photocatalytic Activities

Zhang

et al. 2016

J. Am. Ceram. Soc.

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“…For (BiO) 2 CO 3 , Raman band at 369 cm −1 could be attributed to the external vibration of Bi=O. The Raman shift at 163 cm −1 is assigned to the vibration modes of the carbonate ion . Analogous to BS‐BB, Raman spectra of the composites BS‐BOC also show a peak at 131 cm −1 , corresponding to Bi 2 S 3 .…”

Section: Resultsmentioning

confidence: 97%

“…Bi 2 S 3 , having small band gap (1.3 eV), large absorption coefficient and strong absorption in visible‐light region, displays excellent sensitive property . Recent research has indicated that Bi 2 S 3 ‐sensitized heterojunctions exhibited superior photocatalytic activity for organic pollutant degradation . These heterojunctions were generally prepared via two‐step route, where BiOCl or (BiO) 2 CO 3 nanosparticles were firstly prepared via a hydrothermal route and then the composites were obtained by an anion‐exchange strategy between BiOCl or (BiO) 2 CO 3 and various sulfur sources including Na 2 S, thiourea or thiacetamide.…”

Section: Introductionmentioning

confidence: 99%

One‐Step Synthesis of Bi₂S₃/BiOX and Bi₂S₃/(BiO)₂CO₃ Heterojunction Photocatalysts by Using Aqueous Thiourea Solution as Both Solvent and Sulfur Source

et al. 2016

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Bi2S3/BiOX (X=Cl and Br; respectively denoted as BS‐BC and BS‐BB) and Bi2S3/(BiO)2CO3 (denoted as BS‐BOC) heterojunction photocatalysts were easily synthesized by one‐step method. In the reaction system, Bi(NO3)3⋅5H2O could be completely dissolved in aqueous thiourea solution, which homogeneously reacted with KCl, KBr and Na2CO3 to form into uniformly mixed BS‐BC, BS‐BB and BS‐BOC composites, respectively. The Bi2S3 content in the heterojunctions could be controlled by changing the reaction temperature, reaction time, thiourea amount and molar ratio of X/Bi or CO3/Bi. The as‐prepared photocatalysts exhibited enhanced photocatalytic activity for rhodamine B (RhB) degradation under visible light irradiation in contrast with the corresponding single compounds or the composites prepared via two‐step route. Excellent photocatalytic performance of the heterojunctions could be attributed to the increased visible light response, effective charge transfer from the modified band position and close interfacial contact due to well‐mixed heterojunction structures. Furthermore, unique flower‐like hierarchical BS‐BB presented the most significant increase in photodegradation efficiency for RhB and crystal violet (CV) among three composites.

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“…However, the photocatalytic properties are still far from satisfactory owing to low solar utilization and fast recombination of electron-hole pairs. To improve the visible-light photocatalytic activity of Bi 2 O 2 CO 3 , various strategies have been developed, such as design of microstructure (Zhao et al, 2011), deposition of metals (Yu et al, 2016), formation of heterojunction (Chen et al, 2016, 2017; Huang et al, 2016; Feng et al, 2017; Hu et al, 2017), and doping with ions (Dong et al, 2014; Xiong et al, 2015). The rational construction of heterojunctions can effectively ameliorate the visible-light absorption ability and significantly suppress the electron-hole recombination (Han et al, 2017; Li et al, 2017b,c,e; Zhong et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Ag3VO4 Nanoparticles Decorated Bi2O2CO3 Micro-Flowers: An Efficient Visible-Light-Driven Photocatalyst for the Removal of Toxic Contaminants

Jiang

et al. 2018

Front. Chem.

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Semiconductor-based photocatalysis is of great potential for tackling the environmental pollution. Herein, a novel hierarchical heterostructure of Bi2O2CO3 micro-flowers in-situ decorated with Ag3VO4 nanoparticles was developed by a facile method. Various characterization techniques have been employed to study the physical and chemical property of the novel catalyst. The novel catalyst was utilized for the photocatalytic removal of industrial dyes (rhodamine B, methyl orange) and tetracycline antibiotic under visible-light irradiation. The results indicated that Ag3VO4/Bi2O2CO3 heterojunctions showed a remarkably enhanced activity, significantly higher than those of bare Ag3VO4, Bi2O2CO3, and the physical mixture of Ag3VO4 and Bi2O2CO3 samples. This could be ascribed to an enhanced visible-light harvesting capacity and effective separation of charge carriers by virtue of the construction of hierarchical Ag3VO4/Bi2O2CO3 heterojunction. Moreover, Ag3VO4/Bi2O2CO3 also possesses an excellent cycling stability. The outstanding performance of Ag3VO4/Bi2O2CO3 in removal of toxic pollutants indicates the potential of Ag3VO4/Bi2O2CO3 in real environmental remediation.Highlights Novel architectures of Ag3VO4 nanoparticles modified Bi2O2CO3 micro-flowers were constructed.Novel Ag3VO4/Bi2O2CO3 exhibited excellent photocatalytic activity and stability.Ag3VO4/Bi2O2CO3 heterojunctions significantly promote the charge separation.

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Visible light Bi2S3/Bi2O3/Bi2O2CO3 photocatalyst for effective degradation of organic pollutions

Cited by 314 publications

References 40 publications

Facile Synthesis of BiOBr/Bi₂Sn₂O₇ Heterojunction Photocatalysts with Improved Photocatalytic Activities

Facile Synthesis of BiOBr/Bi₂Sn₂O₇ Heterojunction Photocatalysts with Improved Photocatalytic Activities

One‐Step Synthesis of Bi₂S₃/BiOX and Bi₂S₃/(BiO)₂CO₃ Heterojunction Photocatalysts by Using Aqueous Thiourea Solution as Both Solvent and Sulfur Source

Ag3VO4 Nanoparticles Decorated Bi2O2CO3 Micro-Flowers: An Efficient Visible-Light-Driven Photocatalyst for the Removal of Toxic Contaminants

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Visible light Bi2S3/Bi2O3/Bi2O2CO3 photocatalyst for effective degradation of organic pollutions

Cited by 314 publications

References 40 publications

Facile Synthesis of BiOBr/Bi2Sn2O7 Heterojunction Photocatalysts with Improved Photocatalytic Activities

Facile Synthesis of BiOBr/Bi2Sn2O7 Heterojunction Photocatalysts with Improved Photocatalytic Activities

One‐Step Synthesis of Bi2S3/BiOX and Bi2S3/(BiO)2CO3 Heterojunction Photocatalysts by Using Aqueous Thiourea Solution as Both Solvent and Sulfur Source

Ag3VO4 Nanoparticles Decorated Bi2O2CO3 Micro-Flowers: An Efficient Visible-Light-Driven Photocatalyst for the Removal of Toxic Contaminants

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Facile Synthesis of BiOBr/Bi₂Sn₂O₇ Heterojunction Photocatalysts with Improved Photocatalytic Activities

Facile Synthesis of BiOBr/Bi₂Sn₂O₇ Heterojunction Photocatalysts with Improved Photocatalytic Activities

One‐Step Synthesis of Bi₂S₃/BiOX and Bi₂S₃/(BiO)₂CO₃ Heterojunction Photocatalysts by Using Aqueous Thiourea Solution as Both Solvent and Sulfur Source