Cubic-cubic perovskite quantum dots/PbS mixed dimensional materials for highly efficient CO2 reduction

Hu, Junru; Ke, Xi; Yang, Shuhui; Wang, Kunqiang; Huang, Haowei; Wang, Weizhe; Luo, Dongxiang; Zheng, Zhaoqiang; Huang, Le; Xiao, Peng; Tu, Chen; Min, Yonggang; Huo, Nengjie; Zhang, Menglong

doi:10.1016/j.jpowsour.2020.228838

Cited by 27 publications

(16 citation statements)

References 30 publications

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“…The main peaks at 2θ of 28.3°, 32.8°, 47.0°, 55.8° and 58.5° can be indexed to an orthorhombic Bi 2 WO 6 (JCPDS#39-0256), and corresponded to the indices of (131), (200), (260), (331) and (262) planes, respectively. On the other hand, the diffraction patterns of cubic CsPbBr 3 corresponded to JCPDS#54-0752 and a previous report [ 32 , 37 ]. The transmission electron microscopy (TEM, Figure 1 b) revealed that the CsPbBr 3 QDs of a few nanometers were dispersed on Bi 2 WO 6 with a quasi-rectangle morphology.…”

Section: Resultssupporting

confidence: 81%

Photocatalytic Degradation of Tobacco Tar Using CsPbBr3 Quantum Dots Modified Bi2WO6 Composite Photocatalyst

et al. 2021

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Polycyclic aromatic hydrocarbons (PAHs) in tobacco tar are regarded as a significant threat to human health. PAHs are formed due to the incomplete combustion of organics in tobacco and cigarette paper. Herein, for the first time, we extended the application of CsPbBr3 quantum dots (CsPbBr3) to the photocatalytic degradation of tobacco tar, which was collected from used cigarette filters. To optimize the photoactivity, CsPbBr3 was coupled with Bi2WO6 for the construction of a type-II photocatalyst. The photocatalytic performance of the CsPbBr3/Bi2WO6 composite was evaluated by the degradation rate of PAHs from tobacco tar under simulated solar irradiation. The results revealed that CsPbBr3/Bi2WO6 possesses a large specific surface area, outstanding absorption ability, good light absorption and rapid charge separation. As a result, in addition to good stability, the composite photocatalyst performed remarkably well in degrading PAHs (over 96% were removed in 50 mins of irradiation by AM 1.5 G). This study sheds light on promising novel applications of halide perovskite.

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Section: Resultssupporting

confidence: 81%

Photocatalytic Degradation of Tobacco Tar Using CsPbBr3 Quantum Dots Modified Bi2WO6 Composite Photocatalyst

et al. 2021

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“…In this context, halide perovskite materials are considered as one of the extremely competitive photocatalysts to reduce CO 2 due to their large carrier mobility, high catalytic activity, and compositional flexibility . As is known, the band energies of most of the halide perovskites match with the thermodynamic requirements for CO 2 reduction, and the relative potential positions could be precisely adjusted by size control, dimension and morphological modifications, and chemical composition tuning. , For instance, pristine CsPbBr 3 has been reported to show profound activity for photoreduction of CO 2 to CO in the benzene solvent, and its cubic phase was more active than that of the orthorhombic one . The catalytic performance of CsPbBr 3 was also reported to be strongly dependent on halide deficiency and the active crystal facets for CO 2 conversion .…”

Section: Introductionmentioning

confidence: 99%

“…19,20 For instance, pristine CsPbBr 3 has been reported to show profound activity for photoreduction of CO 2 to CO in the benzene solvent, and its cubic phase was more active than that of the orthorhombic one. 21 The catalytic performance of CsPbBr 3 was also reported to be strongly dependent on halide deficiency and the active crystal facets for CO 2 conversion. 22 Via modification with doped Fe(II), the CsPbBr 3 material could evolve CH 4 as the predominant gas from photocatalytic reduction of CO 2 in an ethyl acetate/water mixture.…”

Section: Introductionmentioning

confidence: 99%

Assembling an Affinal 0D CsPbBr₃/2D CsPb₂Br₅ Architecture by Synchronously In Situ Growing CsPbBr₃ QDs and CsPb₂Br₅ Nanosheets: Enhanced Activity and Reusability for Photocatalytic CO₂ Reduction

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Borjigin

et al. 2021

ACS Appl. Mater. Interfaces

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Conversion of CO 2 into valuable chemical feedstocks through artificial photosynthesis is an effective strategy to alleviate energy and environmental issues. Herein, we have developed a novel perovskite-based catalyst via in situ growing CsPbBr 3 quantum dots (QDs) on the affinal 2D CsPb 2 Br 5 nanosheets for CO 2 photoconversion. CsPbBr 3 QDs were generated by peeling off layers from their cubic counterpart; meanwhile, CsPb 2 Br 5 nanosheets were formed by heaping up the peeled layers. The resultant dual-phase composite exhibited outstanding activity and selectivity for photocatalytic conversion of gaseous CO 2 with a CO generation rate of 197.11 μmol g −1 h −1 under 300 W Xe lamp irradiation, which is 2.5 and 1.1 times higher than that of pure CsPb 2 Br 5 or CsPbBr 3 . Importantly, the fabricated dual-phase material presented extremely high stability and was able to maintain an unchangeable CO 2 conversion rate under wet air in the consecutive 10 h of recycling test. Furthermore, attributing to the in situ assembling strategy, the close contact allowed photo-generated electrons in CsPbBr 3 QDs to transfer rapidly to CsPb 2 Br 5 , and the affluent active sites in such an architecture enabled achieving enhanced CO 2 photoconversion activity. The present work provides an attractive approach for in situ constructing a consubstantial perovskite-based composite photocatalyst to ensure great stability and excellent activity for artificial photocatalytic CO 2 conversion.

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“…Zhang et al [48] synthesized cubic 0D-CsPbBr 3 quantum dots and cubic 2D-PbS mixed-size composites for efficient photocatalytic reduction of CO 2 . CsPbBr 3 quantum dots with strong optical trapping ability are uniformly grown on the nanosubstrate of 2D-PbS for electron transport.…”

Section: Cspbbr 3 Quantum Dot Compositesmentioning

confidence: 99%

Research Progress on Photocatalytic Reduction of CO₂ Based on CsPbBr₃ Perovskite Materials

et al. 2022

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Inorganic metal halide perovskites have rapidly become one of the most promising materials in the 21st century and have been widely used in the field of photocatalysis in recent years. In this review, the structure of inorganic metal halide perovskite materials and the related preparation methods of inorganic metal halide perovskite materials with CsPbBr3 as an example were first described. The application of different CsPbBr3 composites as photocatalyst in the field of photocatalytic reduction of CO2 was introduced in detail. In addition, the possible challenges of CsPbBr3 in the field of photocatalytic reduction of CO2 are discussed and the application of CsPbBr3 basal photocatalysts in this field is prospected, which provides a new research direction for improving the photocatalytic performance of inorganic metal halide perovskite materials in the future.

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Cubic-cubic perovskite quantum dots/PbS mixed dimensional materials for highly efficient CO2 reduction

Cited by 27 publications

References 30 publications

Photocatalytic Degradation of Tobacco Tar Using CsPbBr3 Quantum Dots Modified Bi2WO6 Composite Photocatalyst

Photocatalytic Degradation of Tobacco Tar Using CsPbBr3 Quantum Dots Modified Bi2WO6 Composite Photocatalyst

Assembling an Affinal 0D CsPbBr₃/2D CsPb₂Br₅ Architecture by Synchronously In Situ Growing CsPbBr₃ QDs and CsPb₂Br₅ Nanosheets: Enhanced Activity and Reusability for Photocatalytic CO₂ Reduction

Research Progress on Photocatalytic Reduction of CO₂ Based on CsPbBr₃ Perovskite Materials

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Cubic-cubic perovskite quantum dots/PbS mixed dimensional materials for highly efficient CO2 reduction

Cited by 27 publications

References 30 publications

Photocatalytic Degradation of Tobacco Tar Using CsPbBr3 Quantum Dots Modified Bi2WO6 Composite Photocatalyst

Photocatalytic Degradation of Tobacco Tar Using CsPbBr3 Quantum Dots Modified Bi2WO6 Composite Photocatalyst

Assembling an Affinal 0D CsPbBr3/2D CsPb2Br5 Architecture by Synchronously In Situ Growing CsPbBr3 QDs and CsPb2Br5 Nanosheets: Enhanced Activity and Reusability for Photocatalytic CO2 Reduction

Research Progress on Photocatalytic Reduction of CO2 Based on CsPbBr3 Perovskite Materials

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Assembling an Affinal 0D CsPbBr₃/2D CsPb₂Br₅ Architecture by Synchronously In Situ Growing CsPbBr₃ QDs and CsPb₂Br₅ Nanosheets: Enhanced Activity and Reusability for Photocatalytic CO₂ Reduction

Research Progress on Photocatalytic Reduction of CO₂ Based on CsPbBr₃ Perovskite Materials