Controlled growth of single-crystalline Bi.333(Bi6S9)Br nanorods under hydrothermal conditions for enhanced photocatalytic reduction of Cr (VI)

Ai, Lili; Jia, Dianzeng; Guo, Nannan; Zhang, Su; Wang, Luxiang; Jia, Lixia

doi:10.1016/j.jallcom.2020.155879

Cited by 8 publications

(6 citation statements)

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“…Therefore, photocatalytic reduction of Cr(VI) to Cr(III) has attracted much attention in the recent past. Uniform single-crystal hexagonal Bi 0.333 (Bi 6 S 9 )Br nanorods exhibited excellent photocatalytic performance as well as promising recyclability for reduction of Cr(VI) to Cr(III) under visible light . For the first time, a one-pot hydrothermal method was adopted for the synthesis of Bi 0.333 (Bi 6 S 9 )Br nanorods (Figure a) and explored for Cr(VI) reduction.…”

Section: Photocatalytic Applicationsmentioning

confidence: 99%

“…(b) Photocatalytic degradation rate of Cr(VI) after reaction for 60 min over Bi 0.333 (Bi 6 S 9 )Br nanorods, with BiOBr and Bi 2 S 3 for comparison. Panels a and b reprinted with permission from ref . Copyright 2020 Elsevier.…”

Section: Photocatalytic Applicationsmentioning

confidence: 99%

“…Uniform single-crystal hexagonal Bi 0.333 (Bi 6 S 9 ) Br nanorods exhibited excellent photocatalytic performance as well as promising recyclability for reduction of Cr(VI) to Cr(III) under visible light. 197 For the first time, a one-pot hydrothermal method was adopted for the synthesis of Bi 0.333 (Bi 6 S 9 )Br nanorods (Figure 5a) and explored for Cr(VI) reduction. The existence of surface defects and the unique structure of the Bi 0.333 (Bi 6 S 9 )Br nanorods were beneficial to adsorb and activate Cr(VI).…”

Section: ■ Photocatalytic Applicationsmentioning

confidence: 99%

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Nanostructured Metal Chalcohalide Photocatalysts: Crystal Structures, Synthesis, and Applications

Shyamal,

Pradhan

2023

ACS Energy Lett.

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Nanocrystals of all-inorganic metal chalcohalides having a combination of chalcogen and halogen anions with appropriate crystal structure and bandgap can be ideal semiconductors in comparison to the well-established multicomponent family of nanostructures. These materials are one of the overlooked semiconductors which could play a paramount role in photocatalysis due to their stability, low-dimensional (1D) structure, and suitable bandgaps with efficient light-responsive nature. Emphasizing these materials, in this Review, recent developments in the design and application of different chalcohalide nanostructures are reported. The initial part is focused on the syntheses and crystal structures of reported chalcohalide materials, followed by an overview of their photocatalytic applications in different aspects. Finally, the successes and challenges associated with the future progress using these materials are discussed. This Review will provide an extended understanding and offer a preferred direction for the innovative design of these materials for environmental and especially energy-based applications.

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Section: Photocatalytic Applicationsmentioning

confidence: 99%

Section: Photocatalytic Applicationsmentioning

confidence: 99%

Section: ■ Photocatalytic Applicationsmentioning

confidence: 99%

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Nanostructured Metal Chalcohalide Photocatalysts: Crystal Structures, Synthesis, and Applications

Shyamal,

Pradhan

2023

ACS Energy Lett.

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“…The Bi .333 (Bi 6 S 9 )Br semiconductor nanorods have been prepared by facile hydrothermal route. 23 The light absorption performance and band gap, as well as band structure of the obtained Bi .333 (Bi 6 S 9 )Br nanorods, were studied. It possesses a narrow band gap, negative E CB sites, and abundant surface sulfur defects, which endow them with excellent photocatalytic performance for Cr(VI) reduction.…”

Section: Introductionmentioning

confidence: 99%

“…Wu et al 22 prepared single‐crystalline Bi 19 Cl 3 S 27 nanorods by a simple solvothermal method and the photocatalytic results showed that the nanorods had high activity in the photocatalytic removal of Cr(VI). The Bi .333 (Bi 6 S 9 )Br semiconductor nanorods have been prepared by facile hydrothermal route 23 . The light absorption performance and band gap, as well as band structure of the obtained Bi .333 (Bi 6 S 9 )Br nanorods, were studied.…”

Section: Introductionmentioning

confidence: 99%

( Bi ₁₉ S ₂₇ I ₃ ) _0.6667 nanorods with more negative potentials of conduction band as highly active photocatalysts under visible light

Wang

Guo

et al. 2022

Intl J of Energy Research

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Summary The rational design of photocatalysts with more negative potentials of the conduction band is of vital importance in improving the performance of photocatalysts for reduction reactions. In this work, highly crystalline and uniform (Bi19S27I3)0.6667 nanorods were firstly synthesized by a one‐step hydrothermal process. The formation of the (Bi19S27I3)0.6667 nanorods consists of nucleation and crystal growth in agglomerates of spherical particles. The obtained (Bi19S27I3)0.6667 nanorods with a narrow band gap of about 1.80 eV, a wide visible light absorption spectrum, and a more negative conduction band potential are capable of producing high‐reducibility electrons, and an efficiently photogenerated carriers separation capability. The results demonstrate that the (Bi19S27I3)0.6667 nanorods can be as efficient and stable photocatalysts for Cr(VI) photoreduction and RhB degradation reactions. The photocatalytic reduction efficiency of Cr(VI) over the (Bi19S27I3)0.6667 nanorods was determined to be more than 3 times those of the corresponding BiOI and Bi2S3 photocatalysts under visible light. The detailed formation mechanism of (Bi19S27I3)0.6667 nanorods and the reaction mechanism of Cr(VI) photoreduction were proposed based on various characterizations.

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Defective Bi.333(Bi6S9)Br/Bi2S3 heterostructure nanorods: Boosting the activity for efficient visible-light photocatalytic Cr(VI) reduction

Wang

et al. 2021

Applied Catalysis B: Environmental

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Controlled growth of single-crystalline Bi.333(Bi6S9)Br nanorods under hydrothermal conditions for enhanced photocatalytic reduction of Cr (VI)

Cited by 8 publications

References 50 publications

Nanostructured Metal Chalcohalide Photocatalysts: Crystal Structures, Synthesis, and Applications

Nanostructured Metal Chalcohalide Photocatalysts: Crystal Structures, Synthesis, and Applications

( Bi ₁₉ S ₂₇ I ₃ ) _0.6667 nanorods with more negative potentials of conduction band as highly active photocatalysts under visible light

Defective Bi.333(Bi6S9)Br/Bi2S3 heterostructure nanorods: Boosting the activity for efficient visible-light photocatalytic Cr(VI) reduction

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Controlled growth of single-crystalline Bi.333(Bi6S9)Br nanorods under hydrothermal conditions for enhanced photocatalytic reduction of Cr (VI)

Cited by 8 publications

References 50 publications

Nanostructured Metal Chalcohalide Photocatalysts: Crystal Structures, Synthesis, and Applications

Nanostructured Metal Chalcohalide Photocatalysts: Crystal Structures, Synthesis, and Applications

( Bi 19 S 27 I 3 ) 0.6667 nanorods with more negative potentials of conduction band as highly active photocatalysts under visible light

Defective Bi.333(Bi6S9)Br/Bi2S3 heterostructure nanorods: Boosting the activity for efficient visible-light photocatalytic Cr(VI) reduction

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( Bi ₁₉ S ₂₇ I ₃ ) _0.6667 nanorods with more negative potentials of conduction band as highly active photocatalysts under visible light