Preparation method of Mn0.5Cd0.5S/WO3/Au supported photocatalyst
A photocatalyst, supported technology, used in physical/chemical process catalysts, chemical instruments and methods, hydrogen production, etc.
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Embodiment 1
[0033] 1) WO 3 Preparation: Weigh 2gNa 2 WO 4 -2H 2 O and 0.4g NaCl were dissolved in 30mL of deionized water, and kept stirring for 6h, then adjusted the pH of the solution to 2 with concentrated hydrochloric acid, and continued to stir for 3h, after the stirring was completed, the solution was transferred to a 50ml polytetrafluoroethylene kettle, and kept at 160°C Under the condition of keeping 24h. After the reaction was completed and cooled to room temperature, the obtained product was filtered and washed with deionized water and absolute ethanol, and vacuum-dried to obtain WO 3 solid powder.
[0034] 2) Mn 0.5 Cd 0.5 Preparation of S nanoparticles: Weigh 2.884g L-cystine and dissolve it in 40mL deionized water, then adjust the solution with 6M NaOH to make the solution pH=10.6 to form A mixed solution; weigh 0.532g Cd(CH 3 COO) 2 -2H 2 O and 0.490g Mn(CH 3 COO) 2 -2H 2 O was dissolved in 25mL deionized water to form a mixed solution of B; the mixed solution of...
Embodiment 2
[0041] 1) WO 3 Preparation: Weigh 1.5gNa 2 WO 4 -2H 2 O and 0.3g NaCl were dissolved in 30mL of deionized water, and kept stirring for 6h, then adjusted the pH of the solution to 2 with concentrated hydrochloric acid, and continued to stir for 3h, after the stirring was completed, the solution was transferred to a 50ml polytetrafluoroethylene kettle, and the Under the condition of keeping 24h. After the reaction was completed and cooled to room temperature, the obtained product was filtered and washed with deionized water and absolute ethanol, and vacuum-dried to obtain WO 3 solid powder.
[0042] 2) Mn 0.5 Cd 0.5 Preparation of S nanoparticles: Weigh 2.163g L-cystine and dissolve it in 40mL deionized water, then adjust the solution with 6M NaOH to make the solution pH=10.6 to form A mixed solution; weigh 0.399g Cd(CH 3 COO) 2 -2H 2 O and 0.368g Mn(CH 3 COO) 2 -2H 2 Dissolve O in 25mL of deionized water to form a mixed solution of B; add the mixed solution of B to ...
Embodiment 3
[0046] 1) WO 3 Preparation: Weigh 3gNa 2 WO 4 -2H 2 O and 0.6g NaCl were dissolved in 30mL deionized water, and kept stirring for 6h, then adjusted the pH of the solution to 2 with concentrated hydrochloric acid, and continued to stir for 3h, after the stirring was completed, the solution was transferred to a 50mL polytetrafluoroethylene kettle, and kept at 160°C Keep it under the condition for 24h. After the reaction was completed and cooled to room temperature, the obtained product was filtered and washed with deionized water and absolute ethanol, and vacuum-dried to obtain WO 3 solid powder.
[0047] 2) Mn 0.5 Cd 0.5 Preparation of S nanoparticles: Weigh 3.605g L-cystine and dissolve it in 40mL deionized water, then adjust the solution with 6M NaOH to make the solution pH=10.6 to form A mixed solution; weigh 0.665g Cd(CH 3 COO) 2 -2H 2 O and 0.613g Mn(CH 3 COO) 2 -2H 2 Dissolve O in 25mL of deionized water to form a mixed solution of B; add the mixed solution of...
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