Visible-light Photocatalytic Activity of BiOCl/Bi<sub>3</sub>O<sub>4</sub>Cl Nanocomposites

Gao, Bifen; Chakraborty, Ashok Kumar; Yang, Jian; Lee, Wan In

doi:10.5012/bkcs.2010.31.7.1941

Cited by 43 publications

(8 citation statements)

References 25 publications

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“…And it opened a new chapter of photocatalysis research in environmental governance. In the field of photocatalysis, bismuth‐based semiconductor materials have been a hot research area, such as BiVO 4, BiOCl, Bi 2 O 3, BiOI, BiOIO 3, Bi 4 Ti 3 O 12 , and Bi 2 WO 6, among them, Bi 2 WO 6 has attracted a lot of attentions due to Bi 2 WO 6 's favorable properties such as visible light (the band gap width is 2.68 eV), good stability, nontoxicity, well anti‐chemical inertness and no secondary pollution to the environment . Although Bi 2 WO 6 has many advantages, it also has the obvious disadvantage of low quantum yield, which limits its practical application .…”

Section: Introductionmentioning

confidence: 99%

Triple‐Mode Bi₂WO₆/Pg‐C₃N₄@rGO Core‐Shell Synergistic Effect with Enhanced Light‐induced Photocatalytic Activity

Guo

Wang

et al. 2019

Bulletin Korean Chem Soc

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Synthesizing composites is one of the most effective ways to reduce the recombination probability of electron-hole pairs and to improve photocatalytic activity. In this study, our research group first combined reduced graphene oxide (rGO) with porous graphitic carbon nitride (pg-C 3 N 4 ) to form pg-C 3 N 4 @rGO core-shell, and then loaded bismuth tungstate (Bi 2 WO 6 ) onto the pg-C 3 N 4 @rGO to acquire a ternary composite catalyst. The results of the experiment show that, the ternary photocatalyst exhibited better phototalytic performance than pure pg-C 3 N 4 and Bi 2 WO 6 . When the weight radio of pg-C 3 N 4 @rGO and Bi 2 WO 6 was 100:8, the ternary photocatalyst showed the best photocatalytic performance. Its photocatalytic kinetic constant reached 68 × 10 −4 min −1 , which was 13.6 times that of pg-C 3 N 4 and 7.6 times that of Bi 2 WO 6 . The photocatalytic performance was boosted by the heterojunction structure of the ternary composite, which can effectively separate electron-hole pairs rapidly, and thereby increased quantum yield, thus improving the photocatalytic performance.

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Section: Introductionmentioning

confidence: 99%

Triple‐Mode Bi₂WO₆/Pg‐C₃N₄@rGO Core‐Shell Synergistic Effect with Enhanced Light‐induced Photocatalytic Activity

Guo

Wang

et al. 2019

Bulletin Korean Chem Soc

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“…BiOCl-based constructed heterostructures revealed the enhanced photocatalytic activity, for example, BiOCl-La 2 Ti 2 O 7 (Ao et al 2016), Bi 2 S 3 -BiOCl (Xu et al 2017), CdS-BiOCl (Pan et al 2018), BiOCl-ZnFe 2 O 4 (Sun et al 2018), AgCl-BiOCl (Cheng et al 2014), BiVO 4 -BiOCl (He et al 2014), Co 3 O 4 -BiOCl (Tana et al 2014), BiOCl-TiO 2 (Li et al 2016), Bi 3 O 4 Br/BiOCl (Gao et al 2010), BiOCl/C 3 N 4 (Huang et al 2017), α-Fe 2 O 3 / BiOCl (Zheng et al 2018), BiOCl-Ag 3 PO 4 (Cao et al 2013), BiOCl-Ag 2 CO 3 (Fang et al 2016), Ag-modified BiOCl (Yu et al 2017), BiOCl-SnO 2 (Sun et al 2015), Bi 2 MoO 6 -BiOCl (Zuo et al 2015), CdS/BiOCl (Lin et al 2017), BiOCl-Ag 8 SnS 6 (Shambharkar and Chowdhury 2018). This inspires us to fabricate a novel BiOCl-Cu 2 Zn-SnS 4 heterostructure with the hope of boosting visible light absorption capacity for better photocatalytic activity than their single component.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of BiOCl–Cu2ZnSnS4 heterostructure with enhanced photocatalytic activity

Chowdhury

Shambharkar

2018

Appl Water Sci

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Cu 2 ZnSnS 4 QDs (5-7 nm) were synthesized by chemical coprecipitation route. Using prepared Cu 2 ZnSnS 4 QDs, a new type of BiOCl-Cu 2 ZnSnS 4 heterostructures were prepared using bismuth nitrate as a precurssor and potassium chloride as a source of chlorine at 100 °C, 4 h. BiOCl-Cu 2 ZnSnS 4 heterostructures were analyzed by XRD, TEM, UV-visible NIR, PL and surface area studies. The diffracted peaks of BiOCl-Cu 2 ZnSnS 4 heterostructure show the presence of tetragonal BiOCl and did not show the intense peaks of Cu 2 ZnSnS 4 QDs. TEM images of BiOCl-Cu 2 ZnSnS 4 showed the deposition of Cu 2 ZnSnS 4 QDs on the BiOCl microsphere surface. The surface area of BiOCl, Cu 2 ZnSnS 4 and BiOCl-Cu 2 ZnSnS 4-1 was of 1.91 m 2 /g, 3.06 m 2 /g and 13.39 m 2 /g, respectively. BiOCl-Cu 2 ZnSnS 4-1 had a higher photodegradation rate for Congo red dye than BiOCl and Cu 2 ZnSnS 4 QDs under sunlight, and that higher photoactivity was due to the heterostructure effect between BiOCl and Cu 2 ZnSnS 4 QDs along with increased optical absorption in the visible region. Scavenger study endorses the involvement of superoxide and holes radicals in the degradation of Congo red.

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“…In recent years, it was realized that the series of bismuth oxychlorides with different stoichiometric ratio might be a novel candidate for effective visible-light-excited photocatalyst (Lin et al ., 2006; Gao et al ., 2010; Xiao et al ., 2012, 2013; Chen et al ., 2013). In 2006, Huang and co-workers reported the preparation of Bi 3 O 4 C1 with a band gap ( E g = 2.79 eV) and demonstrated its visible-light-excited photocatalytic ability (Lin et al ., 2006).…”

Section: Introductionmentioning

confidence: 99%

Novel plate-stratiform nanostructured Bi₁₂O₁₇Cl₂ with visible-light photocatalytic performance

et al. 2016

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Novel plate-stratiform nanostructured Bi12O17Cl2 was studied with its visible-light photocatalytic performance. The Bi12O17Cl2 photocatalyst synthesized by a solid-state reaction was constructed of dozens of primary nanosheets, which were stacked by a parallel array of ultrathin secondary nanosheets. The microstructure and crystal structure of Bi12O17Cl2 primary and secondary nanosheets were discovered by high-resolution transmission electron microscopy and selected-area electron diffraction analyses. Its absorption edge was determined as about 590 nm and the band gap energy was 2.1 eV. The Bi12O17Cl2 nanomaterial exhibited superior visible-light-responsive photocatalytic activity and confirmed successful photodegradation of methyl orange (MO) under visible-light irradiation. The degradation efficiency was up to 97% in 90 min. Furthermore, the Bi12O17Cl2 photocatalyst exhibited excellent photostability and high mineralization capacity for MO photodegradation reaction. The MO photodegradation process was dominated by the direct photocatalytic mechanism. The contribution from its morphology and microstructure to superior photocatalytic activity was discussed.

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Visible-light Photocatalytic Activity of BiOCl/Bi₃O₄Cl Nanocomposites

Cited by 43 publications

References 25 publications

Triple‐Mode Bi₂WO₆/Pg‐C₃N₄@rGO Core‐Shell Synergistic Effect with Enhanced Light‐induced Photocatalytic Activity

Triple‐Mode Bi₂WO₆/Pg‐C₃N₄@rGO Core‐Shell Synergistic Effect with Enhanced Light‐induced Photocatalytic Activity

Synthesis and characterization of BiOCl–Cu2ZnSnS4 heterostructure with enhanced photocatalytic activity

Novel plate-stratiform nanostructured Bi₁₂O₁₇Cl₂ with visible-light photocatalytic performance

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Visible-light Photocatalytic Activity of BiOCl/Bi3O4Cl Nanocomposites

Cited by 43 publications

References 25 publications

Triple‐Mode Bi2WO6/Pg‐C3N4@rGO Core‐Shell Synergistic Effect with Enhanced Light‐induced Photocatalytic Activity

Triple‐Mode Bi2WO6/Pg‐C3N4@rGO Core‐Shell Synergistic Effect with Enhanced Light‐induced Photocatalytic Activity

Synthesis and characterization of BiOCl–Cu2ZnSnS4 heterostructure with enhanced photocatalytic activity

Novel plate-stratiform nanostructured Bi12O17Cl2 with visible-light photocatalytic performance

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Visible-light Photocatalytic Activity of BiOCl/Bi₃O₄Cl Nanocomposites

Triple‐Mode Bi₂WO₆/Pg‐C₃N₄@rGO Core‐Shell Synergistic Effect with Enhanced Light‐induced Photocatalytic Activity

Triple‐Mode Bi₂WO₆/Pg‐C₃N₄@rGO Core‐Shell Synergistic Effect with Enhanced Light‐induced Photocatalytic Activity

Novel plate-stratiform nanostructured Bi₁₂O₁₇Cl₂ with visible-light photocatalytic performance