研究目的
Investigating the fabrication of flexible MIL-100(Fe) supported SiO2 nanofibrous membrane for visible light photocatalysis.
研究成果
The SiO2/MIL-100(Fe) fibrous membrane exhibits high photocatalytic activity and stability for dye degradation under visible light, making it a promising candidate for environmental applications.
研究不足
The study focuses on the degradation of Rhodamine B under specific conditions, and the scalability of the fabrication process for industrial applications may require further investigation.
1：Experimental Design and Method Selection:
The study involved the preparation of SiO2/MIL-100(Fe) fibrous membrane through layer-by-layer assembly on electrospun SiO2 fibers for photocatalytic degradation of dyes.
2：Sample Selection and Data Sources:
SiO2 nanofibers were prepared by electrospinning, and MIL-100(Fe) was decorated on these fibers.
3：List of Experimental Equipment and Materials:
Materials included iron chloride hexahydrate, tetraethyl orthosilicate, phosphoric acid, trimesic acid, and poly(vinyl alcohol). Equipment included a syringe pump, high voltage supply, SEM, TEM, XRD, ATR-FTIR, and XPS.
4：Experimental Procedures and Operational Workflow:
The process involved electrospinning, calcination, and layer-by-layer assembly of MIL-100(Fe) on SiO2 fibers.
5：Data Analysis Methods:
Photocatalytic activities were evaluated by degrading Rhodamine B under visible light irradiation, with degradation efficiency measured by UV-Vis spectroscopy.
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SEM
Hitachi 4800
Hitachi
Observe the sample microstructure
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XRD
Shimadzu D6000
Shimadzu
Measure the phase structure of the samples
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ATR-FTIR
Bruker tensor II spectrometer
Bruker
Record the attenuated total reflectance Fourier-transform infrared spectroscopy
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syringe pump
Baoding Longer Precision Pump Co., Ltd.
Control the flow rate during electrospinning process
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high voltage supply
Tianjin Dongwen High Voltage Co.
Provide high voltage for electrospinning
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TEM
Tecnai-G2-F30
Tecnai
Observe the sample microstructure
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XPS
PHI-5702 X-ray photoelectron spectrometer
PHI
Examine the chemical composition and the element chemical status of the samples
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Xe lamp
PLS-SEX300UV
Beijing Perfect Light Co. Ltd.
Provide illumination for photocatalytic activities evaluation
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UV-Vis spectroscopy
T6 UV-Vis spectrometer
Pgeneral
Record the absorption of the RhB solution
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