Photoelectrocatalytic material for selectively removing phthalate pollutants by aperture control and treatment method
A technology of phthalic acid and photoelectric catalysis, applied in chemical instruments and methods, water pollutants, water/sewage treatment, etc., can solve the problems of mesopore structure collapse, poor thermal stability, etc., achieve enhanced adsorption capacity, and preparation method Simple and effective in enhancing photocatalytic reactivity
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Embodiment 1
[0032] A photoelectric catalytic oxidation anode material for selective removal of phthalate pollutants through aperture control. The photoelectric catalytic oxidation anode material is a titanium dioxide electrode loaded with controlled aperture silicon dioxide, and the electrode is prepared by the following method: First prepare a one-dimensional ordered titanium dioxide nanoarray, and then modify the silicon dioxide with controllable pore size by evaporation-induced sol-gel method on its surface, and select alkyltrimethylammonium chloride with different carbon chains as the porogen Pore size control, changing the immersion time of the electrode in the precursor solution to adjust the coating thickness of silicon dioxide, that is, to obtain a photoelectric catalytic oxidation electrode with controllable size and pores, that is, SiO 2 @TiO 2 NA electrodes.
[0033] SiO 2 @TiO 2 The NAs electrode is specifically prepared by the following method:
[0034] (a) Polish the...
Embodiment 2
[0038] A treatment method for the photoelectric catalytic oxidation anode material of pore size control and selective removal of phthalates pollutants, the treatment method is specifically: the DMP solution to be degraded (concentration is 2mg L -1 DMP solution containing 0.1mol L - 1 Na 2 SO 4 Solution) is placed in the circular degradation cell of single-layer quartz face translucent, gets the SiO that embodiment 1 prepares 2 @TiO 2 The NAs electrode was used as the working anode, the platinum sheet was used as the counter electrode, and the saturated calomel electrode was used as the reference electrode to form a three-electrode system. A bias voltage of 0.8 V was applied to the three-electrode system, and the volume of the degradation solution was 100 mL. A xenon lamp was used as the light source. The temperature of the reaction system was maintained at 25° C. using a super constant temperature water tank. Take the concentration at this time as the initial concentra...
Embodiment 3
[0042] A kind of treatment method of the photoelectric catalytic oxidation anode material of pore size control selective removal phthalates pollutant, this treatment method is specifically: the DBP solution (concentration is 2mg L -1 DBP solution, containing 0.1mol L - 1 Na 2 SO 4 Solution) is placed in the circular degradation cell of single-layer quartz face translucent, gets the SiO that embodiment 1 prepares 2 @TiO 2 The NAs electrode was used as the working anode, the platinum sheet was used as the counter electrode, and the saturated calomel electrode was used as the reference electrode to form a three-electrode system. A bias voltage of 0.6 V was applied to the three-electrode system, and the volume of the degradation solution was 100 mL. A xenon lamp was used as the light source. The temperature of the reaction system was maintained at 25° C. using a super constant temperature water tank. Take the concentration at this time as the initial concentration C of DBP ...
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