In situ sulfur-doped mesoporous tungsten oxides for gas sensing toward benzene series

Deng, Yu; Liu, Yan; Deng, Yonghui; Cheng, Jinsheng; Zou, Yidong; Luo, Wei

doi:10.1016/j.cclet.2023.108898

Cited by 2 publications

(1 citation statement)

References 38 publications

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“…The typical synthesis of mesoporous metal oxides usually includes two main steps: the formation of mesostructure using a metal precursor and template (hard-template or soft-template) and the subsequent high-temperature crystallization as well as template removal. − The hard-template method, similar to nanocasting, starts with infiltrating precursors into ordered mesoporous carbon or mesoporous silica (MCM-41, KIT-6, SBA-15) and then etching off the template to obtain the inverse mesostructure . Gu et al synthesized mesoporous ZrO 2 as a hard template, in which the surface-modified functional groups help to enhance the interaction between the template and the precursor.…”

Section: Introductionmentioning

confidence: 99%

A Novel Molten Salt Mediated Synthesis of Mesoporous Metal Oxides with High Crystallization

Ma,

Lu,

Zhou

et al. 2024

ACS Cent. Sci.

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The controlled synthesis of mesoporous metal oxides remains a great challenge because the uncontrolled assembly process and high-temperature crystallization can easily destroy the mesostructure. Herein, we develop a facile, versatile, low-cost, and controllable molten salt assisted assembly strategy to synthesize mesoporous metal oxides (e.g., CeO 2 , ZrO 2 , SnO 2 , Li 2 TiO 3 ) with high surface area (115−155 m 2 / g) and uniform mesopore size (3.0 nm). We find this molten salt mediated assembly enables the desolvation of the precursors and forms bare metal ions, enhances their coordination interaction with the surfactant, and promotes their assembly into a mesostructure. Furthermore, the molten salt assisted crystallization process can lower the collision probability of the target metal atom, inhibit its further growth into large crystals, and achieve a well-maintained mesostructure with high crystallization. Furthermore, this method can be expanded to synthesize various structured mesoporous metal oxides, including hollow spheres, nanotubes, and nanosheets by introducing the carbon template. The obtained mesoporous CeO 2 microspheres loaded with Cu species exhibit excellent antibacterial performance and superior catalytic activity for the hydrogenation of nitrophenol with high conversion and cycling stability.

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Section: Introductionmentioning

confidence: 99%

A Novel Molten Salt Mediated Synthesis of Mesoporous Metal Oxides with High Crystallization

Ma,

Lu,

Zhou

et al. 2024

ACS Cent. Sci.

View full text Add to dashboard Cite

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Hollow Fiber Sensors with a Turn-On Fluorescence Response, Recycling, and Water Proofing for Monitoring Benzene Series

Xu,

Zhao,

Wang

et al. 2024

ACS Appl. Polym. Mater.

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The wide production and application of the benzene series have led to increasingly serious air pollution in the microenvironment. Although considerable efforts have been devoted to the analysis, developing a quick, effective, and convenient monitor for such volatile organic compounds remains a remarkable challenge. Herein, we report a simple fabrication process of hollow fibers (polyimide with a pyrene group) based on wet-spinning. Due to the smooth surface of the fiber, water droplets could quickly slide off within 5 s when the fiber angle reached 40°. Hydrophobicity allowed the polymer fiber to maintain a stable fluorescence performance at a relative humidity of 40 to 80%. Meanwhile, the fiber sensing material exhibited a significant fluorescence enhancement effect when the concentration of toluene reached 500 ppb. For xylene and phenethyl alcohol, the fluorescence response concentrations were both 400 ppb. It indicated that this fiber sensor is beneficial for trace detection of volatile organic compounds. Furthermore, the fiber could still be reused 6–7 times after desorption of the targets. This work provided a convenient and effective method for real-time monitoring of volatile organic compounds.

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In situ sulfur-doped mesoporous tungsten oxides for gas sensing toward benzene series

Cited by 2 publications

References 38 publications

A Novel Molten Salt Mediated Synthesis of Mesoporous Metal Oxides with High Crystallization

A Novel Molten Salt Mediated Synthesis of Mesoporous Metal Oxides with High Crystallization

Hollow Fiber Sensors with a Turn-On Fluorescence Response, Recycling, and Water Proofing for Monitoring Benzene Series

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