Mannitol-assisted synthesis of ultrathin Bi2MoO6 architectures: excellent selective adsorption and photocatalytic performance

Xing, Yongxing; Cheng, Rongqing; Li, Haipeng; Liu, Zhiliang; Du, Chunfang

doi:10.1007/s11051-019-4478-5

Cited by 13 publications

(4 citation statements)

References 52 publications

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“…BMO is interesting not only due to its good performance in these applications but also because its properties and performance are closely related to particle structures and morphology. , It has been shown that the morphology of BMO nanoparticles can be controlled by changing reaction pH or introducing surfactants into the synthesis . Recently, Xing et al synthesized ultrathin BMO particles that selectively adsorbed cationic dye and enhanced photocatalytic activity by introducing mannitol into the precursor solution …”

Section: Introductionmentioning

confidence: 99%

“…52 Recently, Xing et al synthesized ultrathin BMO particles that selectively adsorbed cationic dye and enhanced photocatalytic activity by introducing mannitol into the precursor solution. 53 Herein, bismuth molybdate was grown in the pillared interlayer space of Lap, resulting in the formation of particles with drastically altered morphology that could efficiently adsorb and photodegrade dye molecules. This synthetic approach yielded changes in the crystalline growth direction of BMO, which resulted in the formation of particles predominantly capped with {100}-crystal facets.…”

Section: ■ Introductionmentioning

confidence: 99%

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Facet Engineering of Bismuth Molybdate via Confined Growth in a Nanoscale Template toward Water Remediation

Jatav¹,

Liu²,

Herber³

et al. 2021

ACS Appl. Mater. Interfaces

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Certain nanomaterials can filter and alter unwanted compounds due to a high surface area, surface reactivity, and microporous structure. Herein, γ-Bi2MoO6 particles are synthesized via a colloidal hydrothermal approach using organically modified Laponite as a template. This organically modified Laponite interlayer serves as a template promoting the growth of the bismuth molybdate crystals in the [010] direction to result in hybrid Laponite–Bi2MoO6 particles terminating predominantly in the {100} crystal facets. This resulted in an increase in particle size from lateral dimensions of <100 nm to micron scale and superior adsorption capacity compared to bismuth molybdate nanoparticles. These {100}-facet terminated particles can load both cationic and anionic dyes on their surfaces near-spontaneously and retain the photocatalytic properties of Bi2MoO6. Furthermore, dye-laden hybrid particles quickly sediment, rendering the task of particle recovery trivial. The adsorption of dyes is completed within minutes, and near-complete photocatalytic degradation of the adsorbed dye in visible light allowed recycling of these particles for multiple cycles of water decontamination. Their adsorption capacity, facile synthesis, good recycling performance, and increased product yield compared to pure bismuth molybdate make them promising materials for environmental remediation. Furthermore, this synthetic approach could be exploited for facet engineering in other Aurivillius-type perovskites and potentially other materials.

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Section: Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Facet Engineering of Bismuth Molybdate via Confined Growth in a Nanoscale Template toward Water Remediation

Jatav¹,

Liu²,

Herber³

et al. 2021

ACS Appl. Mater. Interfaces

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“…Mannitol is a commonly used structural induction agent in the synthesis of BiOX [11][12][13] and other Bi-containing semiconductors, including BiVO 4 , Bi 2 WO 6 , and BMO [14][15][16]. In particular, mannitol could be used to create Ovs [12] in photocatalysts but not in BMO yet.…”

Section: Introductionmentioning

confidence: 99%

Mannitol and acidity co-tuned synthesis of oxygen-vacancy-modified bismuth molybdate nanorods for efficient photocatalytic nitrogen reduction to ammonia

Wang

Deng

et al. 2023

Sci. China Mater.

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Oxygen vacancies (Ovs) in semiconductors, which can adsorb and activate N 2 molecules, are active sites for photocatalytic nitrogen reduction to ammonia. However, simple and effective methods for creating Ovs still need to be explored. Herein, mannitol was used to selectively create Ovs at Mo in Bi 2 MoO 6 (BMO) and form BMO short nanorods (SNRs) through a hydrothermal process, with the Ov content, SNR size, and surface area of the sample effectively tuned by pH. BMO SNRs containing the most Ovs exhibit the highest visible light absorption, fastest photoexcited charge separation, and best photocatalytic nitrogen fixation performance, with an N 2 reduction reaction rate in pure water reaching approximately 107-fold that of BMO nanosheets synthesized in the absence of mannitol, and an apparent quantum yield of 2.78% at 420 nm, superior to all of the reported BMO-based photocatalysts. This work provides a new and simple method for selective Ov creation and the morphological tuning of BMO to expedite the photocatalytic N 2 reduction.

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“…synthesized Bi 2 MoO 6 with different morphology by using a simple hydrothermal method at different pH, and the Bi 2 MoO 6 with highest (010) facet exposed ratio exhibited superior photocatalytic activity for dye and antibiotic degradation. Xing et al . prepared an ultrathin Bi 2 MoO 6 by a simple mannitol‐assisted hydrothermal method and it exhibited a selective adsorption efficiency toward positively charged organic pollutants like rhodamine B.…”

Section: Introductionmentioning

confidence: 99%

Efficient Adsorption and Photocatalytic Degradation of Dyes by AgI‐Bi₂MoO₆/Vermiculite Composite under Visible Light

et al. 2019

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A novel efficient AgI‐Bi2MoO6/vermiculite adsorption‐photocatalyst is successfully synthesized by sol‐gel method and precipitation method. The structure and properties of AgI‐Bi2MoO6/vermiculite were analyzed by XRD, FT‐IR, XPS, SEM, TEM, BET, and DRS. All the AgI‐Bi2MoO6/vermiculite composites with different AgI content show enhanced photocatalytic performance for malachite green (MG) dye degradation compared to pure Bi2MoO6 and Bi2MoO6/vermiculite composites. The highest degradation efficiency for MG (30 mg/L) via 5 wt%‐AgI‐Bi2MoO6/vermiculite composite (AgI content 5 wt%) photocatalyst (1 g/L) reaches 98.89% in 60 min at pH 9 without salt. The enhanced performance can be attributed to the uniform dispersion of Bi2MoO6 and AgI on the surface of vermiculite, the stable structure, the enhanced adsorption and the widened visible‐light absorption range as well as the faster separation of electron‐hole pairs. Besides, the photocatalyst still shows relatively high adsorption and photocatalytic performance after three times recycling. In addition, the possible photocatalytic mechanism is proposed at the end.

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Mannitol-assisted synthesis of ultrathin Bi2MoO6 architectures: excellent selective adsorption and photocatalytic performance

Cited by 13 publications

References 52 publications

Facet Engineering of Bismuth Molybdate via Confined Growth in a Nanoscale Template toward Water Remediation

Facet Engineering of Bismuth Molybdate via Confined Growth in a Nanoscale Template toward Water Remediation

Mannitol and acidity co-tuned synthesis of oxygen-vacancy-modified bismuth molybdate nanorods for efficient photocatalytic nitrogen reduction to ammonia

Efficient Adsorption and Photocatalytic Degradation of Dyes by AgI‐Bi₂MoO₆/Vermiculite Composite under Visible Light

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Mannitol-assisted synthesis of ultrathin Bi2MoO6 architectures: excellent selective adsorption and photocatalytic performance

Cited by 13 publications

References 52 publications

Facet Engineering of Bismuth Molybdate via Confined Growth in a Nanoscale Template toward Water Remediation

Facet Engineering of Bismuth Molybdate via Confined Growth in a Nanoscale Template toward Water Remediation

Mannitol and acidity co-tuned synthesis of oxygen-vacancy-modified bismuth molybdate nanorods for efficient photocatalytic nitrogen reduction to ammonia

Efficient Adsorption and Photocatalytic Degradation of Dyes by AgI‐Bi2MoO6/Vermiculite Composite under Visible Light

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Efficient Adsorption and Photocatalytic Degradation of Dyes by AgI‐Bi₂MoO₆/Vermiculite Composite under Visible Light