A kind of pd/cds/toc photocatalyst and its preparation method and application
A technology of photocatalyst and detergent, applied in the direction of catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems of insufficient utilization of visible light and low degradation efficiency, and achieve separation and transmission, adaptability The effect of wide environment and increased utilization
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Embodiment 1
[0038] (1) Preparation of titanyl cluster TOC: Add 20mL of ethylene glycol to 1.0724g of pivalic acid, add 1.7mL of tetrabutyl titanate and keep stirring at 100°C for 24h. After centrifugation, wash with tetrahydrofuran three times and dry for 12h. , get TOC.
[0039] (2) Preparation of CdS / TOC complex: Take 0.05g TOC prepared above and add 10~15mL water, add CdS into TOC solution, and ultrasonic treatment for 5h, centrifuge washing and drying, and finally obtain multi-dimensional CdS / TOC photocatalyst; The mass of CdS added is 0.5% of the mass of TOC.
[0040] Take 0.02 g of the photocatalyst prepared in this example and add it to 30 mL of 15 mg / L 2,4-dichlorophenol solution, stir in the dark for 30 minutes to reach adsorption equilibrium; put it into a photoprotective box, and use an optical filter to obtain In the visible light part of the xenon lamp, air was introduced into the sample to conduct photocatalytic experiments; every 20 minutes, 3 ml of samples were extracted ...
Embodiment 2
[0043] (1) Preparation of titanyl cluster TOC: Add 20mL of ethylene glycol to 1.0724g of pivalic acid, add 1.7mL of tetrabutyl titanate and keep stirring at 100°C for 24h. After centrifugation, wash with tetrahydrofuran three times and dry for 12h. , get TOC.
[0044] (2) Preparation of CdS / TOC composite: Take 0.05gTOC prepared above and add 10~15mL water, add CdS into TOC solution, and ultrasonic treatment for 6h, centrifuge washing and drying, and finally obtain multi-dimensional CdS / TOC photocatalyst; The mass of CdS added is 3% of the mass of TOC.
[0045] Take 0.02 g of the photocatalyst prepared in this example and add it to 30 mL of 15 mg / L 2,4-dichlorophenol solution, stir in the dark for 30 minutes to reach adsorption equilibrium; put it into a photoprotective box, and use an optical filter to obtain In the visible part of the xenon lamp, air is introduced into the sample for photocatalytic experiments; such as figure 1 As indicated, every 20 min, 3 ml samples were ...
Embodiment 3
[0048] (1) Preparation of titanyl cluster TOC: Add 20mL of ethylene glycol to 1.0724g of pivalic acid, add 1.7mL of tetrabutyl titanate and keep stirring at 100°C for 24h. After centrifugation, wash with tetrahydrofuran three times and dry for 12h. , get TOC.
[0049] (2) Preparation of CdS / TOC complex: Take 0.05g TOC prepared above and add 10~15mL water, add CdS into TOC solution, and ultrasonic treatment for 5h, centrifuge washing and drying, and finally obtain multi-dimensional CdS / TOC photocatalyst; The mass of CdS added is 5% of the mass of TOC.
[0050] Take 0.02 g of the photocatalyst prepared in this example and add it to 30 mL of 15 mg / L 2,4-dichlorophenol solution, stir in the dark for 30 minutes to reach adsorption equilibrium; put it into a photoprotective box, and use an optical filter to obtain In the visible part of the xenon lamp, air is introduced into the sample for photocatalytic experiments; such as figure 1 As indicated, every 20 min, 3 ml samples were t...
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