Selective oxidation of cyclohexane to cyclohexanol by BiOI under visible light: Role of the ratio (1 1 0)/(0 0 1) facet

Contreras, David; Melín, Victoria; Márquez, Katherine; Pérez-González, Gabriel; Mansilla, Héctor D.; Pecchi, Gina; Henríquez, Adolfo

doi:10.1016/j.apcatb.2019.03.058

Cited by 59 publications

(38 citation statements)

References 40 publications

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“…Moreover, the (0 0 1) facet almost disappears for BiOI‐X (5, 7, 8, 9, 10), which is consistent with the previous work. [ 25,33 ] They found that (0 0 1) can be developed under acidic conditions due to the fact that the protons tend to be absorbed on O‐terminated (0 0 1) facets and block the formation of (0 0 1) facet. And some new small peaks appear in samples BiOI‐9 and BiOI‐10, certifying the structure has an significant change along with the increased pH during the synthesis process.…”

Section: Resultsmentioning

confidence: 99%

“…Among the numerous 2D materials (g‐C 3 N 4 , In 2 O 3 , and BiWO 6 ), bismuth oxyhalides (BiOX, X = Cl, Br, I) bring to light due to the outstanding optical and electrical properties. [ 23–29 ] Especially, BiOI with the broaden light absorbance range and the narrow band gap, which is a promising photocatalyst, has been extensively studied. [ 25,30 ] BiOI is built by [Bi 2 O 2 ] layers which caught in the middle of two I ions.…”

Section: Introductionmentioning

confidence: 99%

“…[ 23–29 ] Especially, BiOI with the broaden light absorbance range and the narrow band gap, which is a promising photocatalyst, has been extensively studied. [ 25,30 ] BiOI is built by [Bi 2 O 2 ] layers which caught in the middle of two I ions. BiOI is environmentally friendly, cheap and harmfulless, which has been applied in degradation of organic pollutant, such as RhB, MO, MB and NO 2 .…”

Section: Introductionmentioning

confidence: 99%

“…BiOI is environmentally friendly, cheap and harmfulless, which has been applied in degradation of organic pollutant, such as RhB, MO, MB and NO 2 . [ 11,25,31 ] Up to now, many preparation methods have been put forward. Di et al [ 11 ] synthesized BiOI hollow microspheres by using reactable ionic liquid at room temperature which exhibited enhanced photocatalytic activity than bulk BiOI.…”

Section: Introductionmentioning

confidence: 99%

“…Di et al [ 11 ] synthesized BiOI hollow microspheres by using reactable ionic liquid at room temperature which exhibited enhanced photocatalytic activity than bulk BiOI. Contreras et al [ 25 ] obtained a series of BiOI materials by using KI as I source which displayed a higher selectivity for cyclohexanol. In our previous works, we successfully fabricated the BiOCl spheres by using polyelectrolyte as template and Cl source.…”

Section: Introductionmentioning

confidence: 99%

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Ionic liquid‐assisted synthesis of defect‐rich BiOI with controllable structure and high surface area for excellent visible‐light photocatalytic activity

Zhao

Dou

Liu

et al. 2020

Applied Organom Chemis

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In this study, BiOI materials with controllable structure are designed by using ionic liquid as I source and template to create the surface oxygen defects, thus promoting the photogenerated carrier migration and enhancing the photocatalytic activity. The texture of BiOI is controlled by adjusting the pH values of reaction mixture and the corresponding formation mechanism is also explored based on the self‐assembly behavior of ionic liquid. It is found that the sample BiOI‐7 possesses the ultrathin nanosheets (2 ~ 4 nm) and abundant surface oxygen defects which are beneficial for accelerating carrier transfer and facilitating photocatalytic degradation. The photocatalytic activity of as‐prepared BiOI is studied by using Rhodamine B (RhB), methyl orange (MO) and Bisphenol A (BPA) as target pollutants, respectively. Besides, water splitting reactions were also used to further check the photocatalytic activity. BiOI samples exhibit the enhanced photocatalytic activity than bulk BiOI and g‐C3N4 obtained by calcination of melamine. Especially, 92% of bisphenol A (BPA) can be degraded under light irradiation within 1 hr by using only 5 mg of BiOI‐7 nanosheets, which is superior than most counterparts reported so far. This rapidly synthetic route can be applied in fabrication of other novel materials with diverse morphology and porous structure.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Ionic liquid‐assisted synthesis of defect‐rich BiOI with controllable structure and high surface area for excellent visible‐light photocatalytic activity

Zhao

Dou

Liu

et al. 2020

Applied Organom Chemis

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Solar‐Driven Selective Oxidation Over Bismuth‐Based Semiconductors: From Prolific Catalysts to Diverse Reactions

Li,

Huang

2024

Adv Funct Materials

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Synthesis of organic compounds often necessitates rigorous reaction conditions or the involvement of hazardous oxidants, resulting in substantial energy consumption and considerable environmental damage. Photocatalytic selective oxidation represents a green and environmentally friendly way to obtain high‐value chemicals, which has developed rapidly in recent years. Bismuth‐based (Bi‐based) semiconductor materials have gained intense interest in selective organic synthesis due to their diverse crystal structures and compositions, tunable band structure, and outstanding photocatalytic performance. Herein, a systematic summary of the solar‐driven selective oxidation over varieties of Bi‐based semiconductors is provided. Initially, the reactive species involved in selective oxidation, Bi‐based materials widely used in photocatalytic selective oxidation, and the methods for synthesizing these Bi‐based materials are meticulously classified. Concerning their selective oxidation reactions, a variety of modification strategies, with a focus on the separation of photogenerated carriers and the regulation of reactive species is extensively documented. Highlights are the diverse applications and mechanism discussions of Bi‐based photocatalysts in the oxidation reactions, including alcohol oxidation, C─H bond activation, amine oxidation, and sulfide oxidation, as well as the coupling reactions with photoreduction. Finally, the future development prospects and challenges of Bi‐based photocatalysts in the field of selective oxidation is proposed, hoping to provide valuable insights and guidance for the design of photocatalysts for selective oxidation.

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Copper‐Catalyzed Simultaneous Dehydrogenation and Enantioselective Allylic Oxidation of Alkanes Using Chiral Heterogeneous Ligands to Produce Allylic Esters and Theoretical Investigation of the Mechanism

Majidian,

Rashid,

Naghdi

et al. 2024

Applied Organom Chemis

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A new asymmetric method for preparing chiral allylic esters from various unactivated alkanes through simultaneous dehydrogenation and enantioselective allylic oxidation in the presence of chiral heterogeneous oxazoline–based ligands is reported for the first time. For this purpose, chiral amino oxazoline ligands, synthesized from chiral amino alcohols and cyanogen bromide, were immobilized on modified MCM‐41 mesoporous silica. These chiral heterogeneous ligands were then characterized using Fourier‐transform infrared spectroscopy, thermogravimetric analysis, X‐ray diffraction, scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, and Brunauer–Emmett–Teller and Barrett–Joyner–Halenda techniques. Finally, copper complexes of these ligands were employed in the synthesis of chiral allylic esters, achieving the best result with a 90% yield and 77% enantiomeric excess. Evaluation of the recyclability of the chiral heterogeneous catalysts revealed that they can be reused three times without a noticeable reduction in the results. In addition, the mechanism of formation of the chiral allylic esters was investigated using a density functional theory method.

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Selective oxidation of cyclohexane to cyclohexanol by BiOI under visible light: Role of the ratio (1 1 0)/(0 0 1) facet

Cited by 59 publications

References 40 publications

Ionic liquid‐assisted synthesis of defect‐rich BiOI with controllable structure and high surface area for excellent visible‐light photocatalytic activity

Ionic liquid‐assisted synthesis of defect‐rich BiOI with controllable structure and high surface area for excellent visible‐light photocatalytic activity

Solar‐Driven Selective Oxidation Over Bismuth‐Based Semiconductors: From Prolific Catalysts to Diverse Reactions

Copper‐Catalyzed Simultaneous Dehydrogenation and Enantioselective Allylic Oxidation of Alkanes Using Chiral Heterogeneous Ligands to Produce Allylic Esters and Theoretical Investigation of the Mechanism

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