Simple solid-state synthesis of BiOCl/Bi2O2CO3 heterojunction and its excellent photocatalytic degradation of RhB

Xie, Jing; Guo, Nana; Liu, Anjie; Cao, Yali; Hu, Jindou; Jia, Dianzeng

doi:10.1016/j.jallcom.2018.12.386

Cited by 69 publications

(14 citation statements)

References 47 publications

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“…Bismuth subcarbonate (Bi 2 O 2 CO 3 ), as a typical bismuth-based semiconductor photocatalyst, has attracted extensive attention for environmental contaminant removal due to its unique Sillén phase. [1][2][3][4] The Bi 2 O 2 CO 3 structure consists of alternating CO 3 2− layers and [Bi 2 O 2 ] 2+ slabs, and the CO 3 2− and [Bi 2 O 2 ] 2+ planes are arranged orthogonally, which is beneficial for the effective separation of photogenerated charge carriers. However, the relatively wider bandgap (∼3.5 eV) of pristine Bi 2 O 2 CO 3 only responds to UV light, restricting the charge carrier separation efficiency and photocatalytic performance.…”

Section: Introductionmentioning

confidence: 99%

“…However, the relatively wider bandgap (∼3.5 eV) of pristine Bi 2 O 2 CO 3 only responds to UV light, restricting the charge carrier separation efficiency and photocatalytic performance. 1,2,5,6 Therefore, extending the light response region of pristine Bi 2 O 2 CO 3 to visible light and enhancing the charge separation are of utmost concern. Currently, doping foreign ions into Bi 2 O 2 CO 3 and forming Bi 2 O 2 CO 3 heterostructures are predominant and appealing strategies to improve the light response to visible light.…”

Section: Introductionmentioning

confidence: 99%

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Hydroxyl-assisted iodine ions intercalating Bi₂O₂CO₃ nanosheets to construct an interlayered bridge for enhanced photocatalytic degradation of phenols

Zhang

et al. 2022

CrystEngComm

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hydroxyl-assisted iodine ions intercalating Bi₂O₂CO₃ nanosheets to construct an interlayered bridge for enhanced photocatalytic degradation of phenols

Zhang

et al. 2022

CrystEngComm

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“…The improved photoactivity of BiOCl‐CoWO 4 was endorsed to the synergistic effect between BiOCl and CoWO 4 nanoparticles. Moreover, the photoactivity of the BiOCl‐CoWO 4 ‐1 nanocomposite was compared with the other materials reported in the literature and it was found that the BiOCl‐CoWO 4 nanocomposite possesses excellent photocatalytic property (Table ).…”

Section: Resultsmentioning

confidence: 99%

Synthesis and characterization of BiOCl‐CoWO₄ nanocomposites with improved photocatalytic activity

Chowdhury

Shambharkar

2019

Int J Applied Ceramic Tech

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We have synthesized novel BiOCl-CoWO 4 heterostructured nanocomposites through chemical precipitation route with different amount of CoWO 4 using KCl as Cl source at a temperature of 100°C, 4 hours. X-ray diffraction, transmission electron microscopy, UV-visible NIR spectroscopy, photoluminescence spectroscopy, N 2 adsorption-desorption isotherms, and electrochemical impedance spectroscopy were performed to gain the crystal structure, morphology, optical properties, surface area, and charge separation of the prepared photocatalysts. BiOCl-CoWO 4 composites demonstrated the diffraction peaks of both monoclinic CoWO 4 nanoparticles and tetragonal BiOCl indicating the formation of the nanocomposite. TEM observations have shown that CoWO 4 nanoparticles were deposited on the BiOCl surface. Photoluminescence, fluorescence lifetime study, and Electrochemical impedance spectroscopy responses of materials indicated a good separation efficiency of charge carriers in BiOCl-CoWO 4 -1. The photodegradation efficiency of the prepared materials was assessed by the decomposition of rhodamine B (RhB) dye solution under sunlight irradiation. Among the synthesized materials, the BiOCl-CoWO 4 -1 composite photocatalyst exhibited maximum photocatalytic activity. Thus the resulting heterostructure favored the efficient charge and energy transfer between BiOCl and CoWO 4 nanoparticles across the interface. The investigations from the radical scavenger tests showed that photogenerated h + , O 2 •− , and • OH radicals were involved in the photodegradation of RhB.

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“…For instance, hierarchical Bi 2 O 2 CO 3 /BiOCl nanostructures assembled by thin nanoplates showed an excellent photocatalytic performance to RhB under visible light irradiation (see Figure 19c−d). 192 As is shown in Figure 19e, the photoexcited electrons originating from RhB can diffuse to the CB of BiOCl and Bi 2 O 2 CO 3 , and the photogenerated electrons in the CB of BiOCl would transfer to the CB of Bi 2 O 2 CO 3 due to the formation of a built-in electrical field at the interface. This process promoted the separation of electrons−holes between BiOCl and dye.…”

Section: Bimentioning

confidence: 94%

Synthesis, Functional Modifications, and Diversified Applications of Hybrid BiOCl-Based Heterogeneous Photocatalysts: A Review

Yang

Sun

Cui

et al. 2021

Crystal Growth & Design

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The construction and regulation of heterogeneous interfaces are beneficial to improve solar light harvesting and photocharge separation of hybrid BiOCl-based photocatalysts, which are attributed to the synergistic effects that originate from the integrated interaction between disparate components. With the rapid development of synthetic technologies, hybrid BiOCl-based micro-/nanostructures with diversified components, morphologies, and sizes have been well prepared. Moreover, hybrid BiOCl-based photocatalysts have presented a promising potential for various photocatalytic applications, such as organic pollutant degradation, hydrogen production, NO removal, CO2 reduction, heavy metal ion detection, disinfection, nitrogen fixation, and alcohol oxidation. Previously, several review articles have mainly summarized the advances made in synthetic methods, morphological control, modification strategies, and applications of the bare BiOCl micro-/nanostructures. However, a comprehensive overview based on the type of species and the corresponding correlations between microstructures, performances, as well as photocatalytic mechanisms has been less reported for hybrid BiOCl-based photocatalysts so far. Therefore, a comprehensive understanding of the basic theory and research progress of hybrid BiOCl-based photocatalysts is imperative. This review aims to provide an overview of the important advances made in eight types of hybrid BiOCl-based photocatalysts, including metal/BiOCl, metal oxide/BiOCl, metal sulfide/BiOCl, BiOX (X = Cl, Br, I)/BiOCl, AgX (X = Cl, Br, I)/BiOCl, organics/BiOCl, carbon/BiOCl, and other BiOCl-based multicomponents. In each classification, the synthetic methods, modification strategies, relationships between interfacial microstructures, and enhanced performances are discussed based on some typical examples. Additionally, some scientific issues and potential directions are also given. Hopefully, this review paper will provide a useful reference for researchers currently focusing on exploring new BiOCl-based photocatalysts.

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Simple solid-state synthesis of BiOCl/Bi2O2CO3 heterojunction and its excellent photocatalytic degradation of RhB

Cited by 69 publications

References 47 publications

Hydroxyl-assisted iodine ions intercalating Bi₂O₂CO₃ nanosheets to construct an interlayered bridge for enhanced photocatalytic degradation of phenols

Hydroxyl-assisted iodine ions intercalating Bi₂O₂CO₃ nanosheets to construct an interlayered bridge for enhanced photocatalytic degradation of phenols

Synthesis and characterization of BiOCl‐CoWO₄ nanocomposites with improved photocatalytic activity

Synthesis, Functional Modifications, and Diversified Applications of Hybrid BiOCl-Based Heterogeneous Photocatalysts: A Review

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Simple solid-state synthesis of BiOCl/Bi2O2CO3 heterojunction and its excellent photocatalytic degradation of RhB

Cited by 69 publications

References 47 publications

Hydroxyl-assisted iodine ions intercalating Bi2O2CO3 nanosheets to construct an interlayered bridge for enhanced photocatalytic degradation of phenols

Hydroxyl-assisted iodine ions intercalating Bi2O2CO3 nanosheets to construct an interlayered bridge for enhanced photocatalytic degradation of phenols

Synthesis and characterization of BiOCl‐CoWO4 nanocomposites with improved photocatalytic activity

Synthesis, Functional Modifications, and Diversified Applications of Hybrid BiOCl-Based Heterogeneous Photocatalysts: A Review

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Hydroxyl-assisted iodine ions intercalating Bi₂O₂CO₃ nanosheets to construct an interlayered bridge for enhanced photocatalytic degradation of phenols

Hydroxyl-assisted iodine ions intercalating Bi₂O₂CO₃ nanosheets to construct an interlayered bridge for enhanced photocatalytic degradation of phenols

Synthesis and characterization of BiOCl‐CoWO₄ nanocomposites with improved photocatalytic activity