Construction of 2D/2D layered g-C3N4/Bi12O17Cl2 hybrid material with matched energy band structure and its improved photocatalytic performance

Shi, Lei; Si, Weiwei; Wang, Fangxiao; Qi, Wei

doi:10.1039/c8ra03981j

Cited by 45 publications

(5 citation statements)

References 56 publications

(57 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For instance, the g-C 3 N 4 /Bi 4 O 5 I 2 heterojunction can afford better oxidation and reduction reaction to convert CO 2 to CO due to the establishment of the Z-scheme heterojunction in the presence of an I 3 – /I – redox mediator. 2D/2D contact and heteroatom doping of g-C 3 N 4 will further boost the performance. − Zhou et al demonstrated that the in situ fabrication of carbon-doped carbon nitride (CCN) with Bi 12 O 17 Cl 2 can boost photocatalytic degradation of tetracycline (TC) under visible light irradiation (Figure , Table ). An excellent interfacial contact displayed in the TEM image and increased visible absorption were responsible for such improvement (Figure a-b).…”

Section: Carbon Nitride–bismuth Oxyhalide 2d/2d Vdw Structuresmentioning

confidence: 99%

Boosting Photocatalytic Activity Using Carbon Nitride Based 2D/2D van der Waals Heterojunctions

et al. 2021

View full text Add to dashboard Cite

The surging demand for energy and staggering pollutants in the environment have geared the scientific community to explore sustainable pathways that are economically feasible and environmentally compelling. In this context, harnessing solar energy using semiconductor materials to generate charge pairs to drive photoredox reactions has been envisioned as a futuristic approach. Numerous inorganic crystals with promising nanoregime properties investigated in the past decade have yet to demonstrate practical application due to limited photon absorption and sluggish charge separation kinetics. Two-dimensional semiconductors with tunable optical and electronic properties and quasi-resistance-free lateral charge transfer mechanisms have shown great promise in photocatalysis. Polymeric graphitic carbon nitride (g-C3N4) is among the most promising candidates due to fine-tuned band edges and the feasibility of optimizing the optical properties via materials genomics. Constructing a two-dimensional (2D)/2D van der Waals (vdW) heterojunction by allies of 2D carbon nitride sheets and other 2D semiconductors has demonstrated enhanced charge separation with improved visible photon absorption, and the performance is not restricted by the lattice matching of constituting materials. With the advent of new 2D semiconductors over the recent past, the 2D/2D heterojunction assemblies are gaining momentum to design high performance photocatalysts for numerous applications. This review aims to highlight recent advancements and key understanding in carbon nitride based 2D/2D heterojunctions and their applications in photocatalysis, including small molecules activation, conversion, and degradations. We conclude with a forward-looking perspective discussing the key challenges and opportunity areas for future research.

show abstract

Section: Carbon Nitride–bismuth Oxyhalide 2d/2d Vdw Structuresmentioning

confidence: 99%

Boosting Photocatalytic Activity Using Carbon Nitride Based 2D/2D van der Waals Heterojunctions

et al. 2021

View full text Add to dashboard Cite

show abstract

“…This much lower content had less contribution to the XRD and Raman characterization. The peaks with binding energies at 159.1 and 164.4 eV, as shown in Figure d, were assigned to Bi 4f 7/2 and Bi 4f 5/2 in BOC . Detailed O 1s and Cl 2p spectra are listed in Figure S3.…”

Section: Results and Discussionmentioning

confidence: 99%

Tuning the Active Sites of Atomically Thin Defective Bi₁₂O₁₇Cl₂ via Incorporation of Subnanometer Clusters

Zhu

et al. 2021

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

The introduction of subnanometer clusters as active sites on the surface of photocatalysts for efficiently tuning the selectivity and activity of the photocatalyts is still a challenge. Herein, the subnanometer Ag/AgCl clusters were incorporated on atomically thin defective Bi12O17Cl2 nanosheets via rebinding with unsaturated Cl atoms. Benefiting from the surficial Bi vacancies (VBi) and Bi–O vacancies (VBi–O) in this atomically thin architecture, the local atomic arrangement was tuned so that the subnanometer Ag/AgCl clusters were successfully incorporated. An enhancement of photocatalytic activity for NO removal was achieved in which the activity is 3 times higher than that of Bi12O17Cl2 and 1.8 times higher than that of defective Bi12O17Cl2. The substitution of the active sites from surficial VBi and VBi–O to be subnanometer Ag/AgCl clusters enables a tunable redox potential and different reaction mechanisms in NO removal. Moreover, the selectivity of the photoinduced redox reaction on NO oxidation and CO2 reduction was achieved via introducing an extra energy level.

show abstract

“…Organic species − (such as g-C 3 N 4 , PANi, PDA, PAN, PPy) have been extensively investigated as superior supports for converting solar energy into chemical energy because of their excellent thermal and chemical tenability, the controllable microstructure, and strong visible light response. Therefore, the photocatalytic performances of organic species/BiOCl composites were higher than that of the pristine BiOCl. − Currently, the organic species/BiOCl photocatalysts have been majorly employed for pollutant removal, and their synthetic methods, reactants, and applications are summarized in Table . In this section, research progress made in organic species/BiOCl nanostructures will be clarified.…”

Section: Categories Of Biocl-based Photocatalystsmentioning

confidence: 99%

“…However, a major shortcoming of bulk g-C 3 N 4 was poor mass diffusion, limiting the photocatalytic activity . Thereby, in order to ameliorate the disadvantages of bulk g-C 3 N 4 , coupling g-C 3 N 4 nanosheets with BiOCl nanosheets has become a popular strategy to synthesize high-activity g-C 3 N 4 /BiOCl heterostructures. ,,,,− …”

Section: Categories Of Biocl-based Photocatalystsmentioning

confidence: 99%

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

Yang

Sun

Cui

et al. 2021

Crystal Growth & Design

View full text Add to dashboard Cite

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.

show abstract

Construction of 2D/2D layered g-C₃N₄/Bi₁₂O₁₇Cl₂ hybrid material with matched energy band structure and its improved photocatalytic performance

Cited by 45 publications

References 56 publications

Boosting Photocatalytic Activity Using Carbon Nitride Based 2D/2D van der Waals Heterojunctions

Boosting Photocatalytic Activity Using Carbon Nitride Based 2D/2D van der Waals Heterojunctions

Tuning the Active Sites of Atomically Thin Defective Bi₁₂O₁₇Cl₂ via Incorporation of Subnanometer Clusters

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

Contact Info

Product

Resources

About

Construction of 2D/2D layered g-C3N4/Bi12O17Cl2 hybrid material with matched energy band structure and its improved photocatalytic performance

Cited by 45 publications

References 56 publications

Boosting Photocatalytic Activity Using Carbon Nitride Based 2D/2D van der Waals Heterojunctions

Boosting Photocatalytic Activity Using Carbon Nitride Based 2D/2D van der Waals Heterojunctions

Tuning the Active Sites of Atomically Thin Defective Bi12O17Cl2 via Incorporation of Subnanometer Clusters

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

Contact Info

Product

Resources

About

Construction of 2D/2D layered g-C₃N₄/Bi₁₂O₁₇Cl₂ hybrid material with matched energy band structure and its improved photocatalytic performance

Tuning the Active Sites of Atomically Thin Defective Bi₁₂O₁₇Cl₂ via Incorporation of Subnanometer Clusters