Fe2O3/TiO2 composite photocatalytic film layer with three-dimensional nano sheet structure and preparation method and application thereof
A technology of composite photocatalysis and sheet structure, which is applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., to achieve good industrial application prospects, wide range of photoresponse, The effect of high specific surface area
Active Publication Date: 2020-02-11
SOUTH CHINA UNIV OF TECH
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The invention discloses a Fe2O3/TiO2 composite photocatalytic film layer with a three-dimensional nano sheet structure and a preparation method and application thereof. The preparation method comprises the following steps: (1) gradually polishing a titanium substrate to be smooth by using abrasive paper, and then carrying out ultrasonic cleaning; (2) preparing a reaction solution A by using sodiumphosphate, sodium tungstate, potassium ferrocyanide and deionized water; connecting the substrate treated in the step (1) to an anode of a direct-current power supply, taking a stainless steel sheetas a cathode, and carrying out plasma electrolytic oxidation treatment in the reaction solution A to prepare a porous Fe2O3/TiO2 composite film layer; and (3) preparing a reaction solution B by usingsodium hydroxide and deionized water; placing the composite film layer prepared in the step (2) in the reaction solution B for hydrothermal reaction to prepare the composite photocatalytic film layer.As a photocatalyst, the film layer is large in specific surface area and wide in light response range, thus has excellent photocatalytic effect.
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Property | Measurement | Unit |
Concentration | 30.0 | mg/l |
Concentration | 30.0 | m |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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