研究目的
Investigating the photocatalytic performance of a novel FeWO4/BiPO4 p–n heterojunction for the degradation of Rhodamine B and tetracycline under visible light irradiation.
研究成果
The FeWO4/BiPO4 p–n heterojunction photocatalyst demonstrated enhanced photocatalytic activity for the degradation of RhB and TC under visible light irradiation, with the S3 sample showing the highest efficiency. The study provides a novel approach for environmental applications, particularly in textile and pharmaceutical wastewater treatment.
研究不足
The study focuses on the degradation of specific pollutants (RhB and TC) under controlled conditions. The scalability and practical application in real wastewater treatment need further investigation.
1：Experimental Design and Method Selection:
The study involved the synthesis of FeWO4/BiPO4 heterojunction photocatalysts via a hydrothermal method. The photocatalytic performance was evaluated by degrading Rhodamine B (RhB) and tetracycline (TC) under visible light.
2：Sample Selection and Data Sources:
The samples were prepared with different weight percentages of FeWO4 (10, 20, 30, 40%) denoted as S1, S2, S3, and S4, respectively.
3：List of Experimental Equipment and Materials:
Equipment included Powder XRD, FTIR spectrophotometer, SEM, HRTEM, XPS spectrometer, UV-Vis DRS, BET analyzer, and PL spectrofluorometer. Materials included Bismuth nitrate hexahydrate, sodium phosphate, ferric chloride, sodium tungstate dihydrate, and others.
4：Experimental Procedures and Operational Workflow:
The synthesis involved hydrothermal treatment, characterization by various techniques, and photocatalytic evaluation under visible light.
5：Data Analysis Methods:
The degradation efficiency was calculated using UV-Vis spectrophotometry, and the mechanism was proposed based on GC-MS analysis.
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Powder XRD
D8 Bruker advance
Bruker
Characterization of crystalline structures
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SEM
JEOL Model JSM
JEOL
Exhibiting morphology and structure
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HRTEM
JEOL-JSM 2100
JEOL
Detecting microstructure and crystal lattice parameters
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UV-Vis DRS
JASCO
JASCO
Exploring optical properties
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PL spectrofluorometer
JY Flurolog-3-11
JY
Measuring photoluminescence spectra
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FTIR spectrophotometer
ABB MB 3000
ABB
Recording Fourier transform infrared spectra
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XPS spectrometer
PHI 5000 VERSAPROBE II SCANNING ESCA MICROPROBE
PHI
Acquiring surface elemental composition
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BET analyzer
Quantachrome Instrument version 3.0
Quantachrome
Calculating specific surface area
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