CdS/Ti-MCM-41 loaded platinum photo catalyst and its preparation method
A technology of photocatalyst and catalyst, which is applied in the direction of catalyst activation/preparation, physical/chemical process catalyst, molecular sieve catalyst, etc. Effects of improved photocorrosion ability and improved hydrogen production activity
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Embodiment 1
[0049] 1) In a water bath at 40°C, dissolve 0.36g of sodium hydroxide NaOH and 1.82g of cetyltrimethylammonium bromide CTAB in 45mL of deionized water, and slowly drop into 8.21mL of tetraethylorthosilicate with a pipette Ester TEOS, stirred at a speed of 800rpm to facilitate the hydrolysis of TEOS; 0.25g of tetrabutyl titanate TBOT was added dropwise after 0.5h, and the solution was transferred to a hydrothermal kettle with a Teflon liner after continuing to stir for 1h. Crystallized at 100°C for 72h. After the hydrothermal kettle was lowered to room temperature, the solution was filtered, repeatedly washed with deionized water and dried to obtain white raw powder CTAB / Ti-MCM-41;
[0050] 2) Calcining 2g of white raw powder CTAB / Ti-MCM-41 in air atmosphere at 500°C for 10h to remove template agent CTAB to obtain mesoporous matrix Ti-MCM-41;
[0051] 3) 1.25g cadmium acetate CdAc 2 Dissolve in 100mL methanol MeOH, add 1.0g CTAB / Ti-MCM-41 raw powder, and reflux at the boiling...
Embodiment 2
[0061] 1) In a water bath at 60°C, dissolve 0.72g of sodium hydroxide NaOH and 3.64g of cetyltrimethylammonium bromide CTAB in 90mL of deionized water, and slowly drop into 16.4mL of tetraethylorthosilicate with a pipette Ester TEOS, stirred at a speed of 500rpm to facilitate the hydrolysis of TEOS; 0.25g of tetrabutyl titanate TBOT was added dropwise after 1h, and after stirring for 1h, the solution was transferred to a hydrothermal kettle with a polytetrafluoroethylene liner and placed in Crystallized at 100°C for 72h. After the hydrothermal kettle was lowered to room temperature, the solution was filtered, repeatedly washed with deionized water and dried to obtain white raw powder CTAB / Ti-MCM-41;
[0062] 2) Calcining 2g of white raw powder CTAB / Ti-MCM-41 in air atmosphere at 500°C for 5h to remove template agent CTAB to obtain mesoporous matrix Ti-MCM-41;
[0063] 3) 1.25g cadmium acetate CdAc 2 Dissolve in 100mL methanol MeOH, add 1.0g CTAB / Ti-MCM-41 raw powder, and ref...
Embodiment 3
[0073] 1) In a water bath at 40°C, dissolve 0.72g of sodium hydroxide NaOH and 3.64g of cetyltrimethylammonium bromide CTAB in 90mL of deionized water, and slowly drop into 16.4mL of tetraethylorthosilicate with a pipette Ester TEOS, stirred at a speed of 800rpm to facilitate the hydrolysis of TEOS; 0.25g of tetrabutyl titanate TBOT was added dropwise after 1h, and after stirring for 1h, the solution was transferred to a hydrothermal kettle with a polytetrafluoroethylene liner and placed in Crystallized at 110°C for 48h. After the hydrothermal kettle was lowered to room temperature, the solution was filtered, repeatedly washed with deionized water and dried to obtain white raw powder CTAB / Ti-MCM-41;
[0074] 2) Calcining 2g of white raw powder CTAB / Ti-MCM-41 in air atmosphere at 600°C for 5h to remove template agent CTAB to obtain mesoporous matrix Ti-MCM-41;
[0075] 3) 2.5g cadmium acetate CdAc 2Dissolve in 200mL methanol MeOH, add 2.0g CTAB / Ti-MCM-41 raw powder, and reflu...
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