Preparation method of p-NiO/n-CdS/TiO2 composite semiconductor photochemical catalyst
A compound semiconductor and photocatalyst technology, applied in the field of photocatalytic materials, can solve problems such as ineffective effects, achieve the effects of reducing photocorrosion, improving photocatalytic efficiency, and prolonging service life
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Embodiment 1
[0033] TiO 2 Sol preparation
[0034] Tetrabutyl titanate: 21.25%
[0035] Absolute Ethanol: 63.75%
[0036] 35% hydrochloric acid: 5%
[0037] Deionized water: 10%
[0038] TiO 2 Preparation of sol: According to the above mass percentage, mix tetrabutyl titanate, absolute ethanol, 35% hydrochloric acid and deionized water, stir and react at room temperature for 20h, and then use the frequency at 30KH Z , an ultrasonic disperser with a power of 800W disperses for 2h to obtain TiO 2 Sol;
[0039] CdS / TiO 2 Preparation of solid powder:
[0040] Prepared TiO 2 Sol: 60%
[0041] Anhydrous cadmium chloride: 1.3%
[0042] Thiourea: 1%
[0043] Deionized water: 37.7%
[0044] CdS / TiO 2 Preparation of solid powder: according to the above mass percentage, the prepared TiO 2 Sol, anhydrous cadmium chloride, thiourea and deionized water are mixed at a frequency of 30KH Z , Under ultrasonic dispersion with a power of 800W, react at 80°C for 10h, then filter to obtain a sol...
Embodiment 2
[0052] TiO 2 Sol preparation
[0053] Tetraisopropyl titanate: 39%
[0054] Isopropanol: 40%
[0055] 65% nitric acid: 5%
[0056] Deionized water: 16%
[0057] TiO 2 Preparation of sol: According to the above mass percentage, mix tetraisopropyl titanate, isopropanol, 65% nitric acid and deionized water, stir and react at room temperature for 20h, and then use the frequency at 30KH Z , an ultrasonic disperser with a power of 800W disperses for 2h to obtain TiO 2 Sol;
[0058] CdS / TiO 2 Preparation of solid powder:
[0059] Prepared TiO 2 Sol: 45.5%
[0060] Anhydrous cadmium bromide: 1.6%
[0061] Thiourea: 1%
[0062] Deionized water: 51.9%
[0063] CdS / TiO 2 Preparation of solid powder: according to the above mass percentage, the prepared TiO 2 Sol, anhydrous cadmium bromide, thiourea and deionized water are mixed at a frequency of 30KH Z , Under ultrasonic dispersion with a power of 800W, react at 80°C for 10h, then filter to obtain a solid powder cake, add ...
Embodiment 3
[0071] TiO 2 Sol preparation
[0072] Tetra-n-propyl titanate: 284 24.9%
[0073] Absolute Ethanol: 44.1%
[0074] Isopropanol: 10%
[0075] Sulfuric acid: 3%
[0076] Deionized water: 18%
[0077] TiO 2 Preparation of sol: According to the above mass percentage, mix tetra-n-propyl titanate, absolute ethanol, isopropanol, sulfuric acid and deionized water, stir and react at room temperature for 20 hours, and then use the frequency at 30KH Z , an ultrasonic disperser with a power of 800W disperses for 2h to obtain TiO 2 Sol;
[0078] CdS / TiO 2 Preparation of solid powder:
[0079] Prepared TiO 2 Sol: 50%
[0080] Anhydrous cadmium sulfate: 1.3%
[0081] Thiourea: 1.4%
[0082] Deionized water: 47.3%
[0083] CdS / TiO 2 Preparation of solid powder: according to the above mass percentage, the prepared TiO 2 Sol, anhydrous cadmium sulfate, thiourea and deionized water are mixed at a frequency of 30KH Z , Under ultrasonic dispersion with a power of 800W, react at 80...
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