rGO-modified BiOX (X = Cl, I, Br) for enhanced photocatalytic eradication of gaseous mercury

Cai, Jun; Xie, Yang; Ma, Chong; Wang, Xueqian; Wang, Langlang; Ning, Ping; Ma, Yangmin

doi:10.1016/j.apsusc.2022.153502

Cited by 16 publications

(3 citation statements)

References 66 publications

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“…The integration of special materials to optimize the performance of catalytic materials represents a promising research directions in the fields of photocatalysis and electrocatalysis, [205][206][207][208][209] and various functional catalysts have been developed and served as an effective strategy to improve catalytic performance. [210][211][212][213] In recent years, the use of C 60 and derivatives in catalyst design has emerged as a highly promising approach, owing to the distinctive physicochemical properties.…”

Section: Discussionmentioning

confidence: 99%

C₆₀ and Derivatives Boost Electrocatalysis and Photocatalysis: Electron Buffers to Heterojunctions

Xu,

Wang,

et al. 2023

Advanced Energy Materials

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Buckminsterfullerene (C60) and derivatives are significant in the synthesis of efficient electrocatalysts and photocatalysts. This is because of electron acceptor properties and distinctive heterostructure(s) and physicochemical characteristics. High‐performance electrocatalysts and photocatalysts are important therefore in conversions for clean energy. Here a critical assessment of advances in use of C60 and derivatives as heterostructures and “electron buffers” in catalysts are reported. Methodologies for preparing C60 composite catalysts are assessed and categorized and microscopic mechanisms for boosting catalytic performance through C60 and derivatives in important catalytic materials including, semiconductors, carbon‐based metal‐free materials, metal nanoclusters, single atoms, and metal–organic skeletons are established. Important characterizations used with C60 and derivative composites are contrasted and assessed and practical challenges to development are determined. A prospective on future directions and likely outcomes in development of high efficiency electrocatalysts and photocatalysts is provided. It is concluded that C60 and derivatives are advantageous for advanced electrocatalysts and photocatalysts with high structural integrity and boosted electron transport. The findings are expected to be of interest and benefit to researchers and manufacturers for formation of heterostructures and electron buffer areas for significantly boosted catalytic performance.

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Section: Discussionmentioning

confidence: 99%

C₆₀ and Derivatives Boost Electrocatalysis and Photocatalysis: Electron Buffers to Heterojunctions

Xu,

Wang,

et al. 2023

Advanced Energy Materials

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“…Other groups have also reported light‐responsive rGO‐modified BiOX composites (X: Cl, I, or Br) [ 292 ] and carbon‐modified BiOI/BiOIO 3 for the removal of gaseous mercury. [ 293 ] Easily separable magnetic composites are extremely useful given the difficulty associated with catalyst separation in PC research.…”

Section: Sustainable Energy and Environmental Restoration Applicationsmentioning

confidence: 99%

Recent Development Strategies for Bismuth‐Driven Materials in Sustainable Energy Systems and Environmental Restoration

Adhikari

Mandal

Kim

2022

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Bismuth(Bi)‐based materials have gained considerable attention in recent decades for use in a diverse range of sustainable energy and environmental applications due to their low toxicity and eco‐friendliness. Bi materials are widely employed in electrochemical energy storage and conversion devices, exhibiting excellent catalytic and non‐catalytic performance, as well as CO2/N2 reduction and water treatment systems. A variety of Bi materials, including its oxides, chalcogenides, oxyhalides, bismuthates, and other composites, have been developed for understanding their physicochemical properties. In this review, a comprehensive overview of the properties of individual Bi material systems and their use in a range of applications is provided. This review highlights the implementation of novel strategies to modify Bi materials based on morphological and facet control, doping/defect inclusion, and composite/heterojunction formation. The factors affecting the development of different classes of Bi materials and how their control differs between individual Bi compounds are also described. In particular, the development process for these material systems, their mass production, and related challenges are considered. Thus, the key components in Bi compounds are compared in terms of their properties, design, and applications. Finally, the future potential and challenges associated with Bi complexes are presented as a pathway for new innovations.

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“…Bismuth-based photocatalysts have high charge separation ability and efficient solar energy utilization. , Bi 3 NbO 7 , as a member of bismuth-based materials, has a suitable band gap (2.5–2.75 eV) and high chemical stability, which is a promising semiconductor photocatalyst. However, Bi 3 NbO 7 has a low solar utilization and high electron–hole pair (e – –h + ) recombination rate. , BiOX (X = Cl, Br, I) is a 2D-layered bismuth-based material, consisting of [Bi 2 O 2 ] 2+ and double X – , which provides sufficient space for the polarization of the corresponding atoms and orbitals and facilitates the transport and separation of charge carriers. − The VB of BiOX is decided by O 2p and X np, while the CB is determined by Bi 6p. Therefore, the band gap position can be adjusted to form a solid solution (BiOCl x I 1– x , BiOBr x I 1– x , and BiOCl x Br 1– x ) to solve the problem between light absorption and redox potential. , At present, heterojunctions have been proven to be one of the most promising methods for the preparation of advanced photocatalysts.…”

Section: Introductionmentioning

confidence: 99%

Persulfate Activation of Photocatalysts Based on S-Scheme Bi₃NbO₇/BiOBr_0.75I_0.25 Nanosheet Heterojunctions for Degradation of Organic Pollutants

Wang

et al. 2023

ACS Appl. Nano Mater.

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Photocatalytic activation of persulfate has been receiving much attention in the field of wastewater treatment. In this work, the Bi 3 NbO 7 /BiOBr 0.75 I 0.25 nanosheet S-scheme heterojunctions were synthesized by the solvothermal method to activate persulfate. The degradation rates of rhodamine B (RhB) and TC by 0.05Bi 3 NbO 7 / BiOBr 0.75 I 0.25 were 95.4 and 74.7% in 2 h, respectively, indicating that 0.05Bi 3 NbO 7 /BiOBr 0.75 I 0.25 nanosheet heterojunctions have good photocatalytic activity. The synergistic effect between persulfate and the 0.05Bi 3 NbO 7 /BiOBr 0.75 I 0.25 photocatalyst was investigated under different persulfate contents, pH values, and light conditions. The RhB degradation rate of 0.05Bi 3 NbO 7 /BiOBr 0.75 I 0.25 activation persulfate is more than twice that of 0.05Bi 3 NbO 7 /BiOBr 0.75 I 0.25 , and the range of pH adaptation is wide. Radical quenching experiments showed that h + , • O 2 − , and •OH were the important active groups. Persulfate and catalysts produce a synergistic effect, which is S 2 O 8 2− reacting with e − to form •SO 4 − in the photocatalytic process. Meanwhile, the formation of •SO 4 − accelerates the process of photocatalytic reaction. This work provides ideas for the design of efficient and pollution-free photocatalysts for the activation of persulfate.

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rGO-modified BiOX (X = Cl, I, Br) for enhanced photocatalytic eradication of gaseous mercury

Cited by 16 publications

References 66 publications

C₆₀ and Derivatives Boost Electrocatalysis and Photocatalysis: Electron Buffers to Heterojunctions

C₆₀ and Derivatives Boost Electrocatalysis and Photocatalysis: Electron Buffers to Heterojunctions

Recent Development Strategies for Bismuth‐Driven Materials in Sustainable Energy Systems and Environmental Restoration

Persulfate Activation of Photocatalysts Based on S-Scheme Bi₃NbO₇/BiOBr_0.75I_0.25 Nanosheet Heterojunctions for Degradation of Organic Pollutants

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rGO-modified BiOX (X = Cl, I, Br) for enhanced photocatalytic eradication of gaseous mercury

Cited by 16 publications

References 66 publications

C60 and Derivatives Boost Electrocatalysis and Photocatalysis: Electron Buffers to Heterojunctions

C60 and Derivatives Boost Electrocatalysis and Photocatalysis: Electron Buffers to Heterojunctions

Recent Development Strategies for Bismuth‐Driven Materials in Sustainable Energy Systems and Environmental Restoration

Persulfate Activation of Photocatalysts Based on S-Scheme Bi3NbO7/BiOBr0.75I0.25 Nanosheet Heterojunctions for Degradation of Organic Pollutants

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C₆₀ and Derivatives Boost Electrocatalysis and Photocatalysis: Electron Buffers to Heterojunctions

C₆₀ and Derivatives Boost Electrocatalysis and Photocatalysis: Electron Buffers to Heterojunctions

Persulfate Activation of Photocatalysts Based on S-Scheme Bi₃NbO₇/BiOBr_0.75I_0.25 Nanosheet Heterojunctions for Degradation of Organic Pollutants