Method for preparing heterojunction photocatalyst
A photocatalyst and heterojunction technology, applied in chemical instruments and methods, catalyst activation/preparation, physical/chemical process catalysts, etc., can solve the problems of low catalytic efficiency, complex preparation process, and high preparation cost, and achieve a simple preparation process. , the process is simple, the effect of low cost
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Embodiment 1
[0021] 1) Weigh 0.85g of Cd(CH 3 COO) 2 2H 2 O and 1.21 g of CH 4 N 2 S, dissolve in 40ml of deionized water, keep stirring to obtain a clear solution, pour the target solution into a 50ml hydrothermal reaction kettle at 150°C for 20h, cool to room temperature naturally, wash with deionized water for several times, and then transfer to an oven Dry to obtain CdS nanoparticles.
[0022] 2) 1.46g Bi(NO 3 ) 3 ·5H 2 O dissolved in 20ml of (CH 2 Oh) 2 Solution A was formed. Dissolve 0.50g of KI in 20ml of (CH 2 Oh) 2 Solution B is formed. Slowly drop solution A into solution B at a volume ratio of 1:1 to obtain a homogeneous solution C. The solution C was poured into a 50ml hydrothermal reaction kettle at 160°C for 18 hours, cooled to room temperature naturally, washed with deionized water and ethanol for several times, and then transferred to an oven for drying to obtain a BiOI nanocatalyst.
[0023] 3) 1g of BiOI and 0.2g of CdS were dissolved in deionized water, ult...
Embodiment 2
[0025] 1) Weigh 3.19mmol of Cd(CH 3 COO) 2 2H 2 O and 15.95 mmol of CH 4 N 2 S, dissolve in 40ml of deionized water, keep stirring to obtain a clear solution, pour the target solution into a 50ml hydrothermal reaction kettle at 130°C for 30h, let it cool down to room temperature, and then centrifugally wash it several times with deionized water, then transfer it to an oven Dry to obtain CdS nanoparticles.
[0026] 2) 1.46g Bi(NO 3 ) 3 ·5H 2 O dissolved in 20ml of (CH 2 Oh) 2 Solution A was formed. Dissolve 0.50g of KI in 20ml of (CH 2 Oh) 2 Solution B is formed. Slowly drop solution A into solution B at a volume ratio of 1:1 to obtain a homogeneous solution C. The solution C was poured into a 50ml hydrothermal reaction kettle at 150°C for 20h, cooled to room temperature naturally, washed with deionized water and ethanol for several times, and then transferred to an oven for drying to obtain a BiOI nanocatalyst.
[0027] 3) 1g of BiOI and 0.4g of CdS were dissolve...
Embodiment 3
[0029] 1) Weigh 3.19mmol of Cd(CH 3 COO) 2 2H 2 O and 1.21 g of CH 4 N 2 S, dissolve in 40ml of deionized water, keep stirring to obtain a clear solution, pour the target solution into a 50ml hydrothermal reaction kettle at 160°C for 18h, cool to room temperature naturally, wash with deionized water for several times, and then transfer to an oven Dry to obtain CdS nanoparticles.
[0030] 2) 1.46g Bi(NO 3 ) 3 ·5H 2 O dissolved in 20ml of (CH 2 Oh) 2 Solution A was formed. Dissolve 0.50g of KI in 20ml of (CH 2 Oh) 2Solution B is formed. Slowly drop solution A into solution B at a volume ratio of 1:1 to obtain a homogeneous solution C. Pour the solution C into a 50ml hydrothermal reaction kettle and keep it at 140°C for 24h. After cooling down to room temperature naturally, it was washed several times with deionized water and ethanol, and then transferred to an oven for drying to obtain a BiOI nanocatalyst.
[0031] 3) 1g of BiOI and 0.2g of CdS were dissolved in de...
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