Heterostructured composite material formed by Bi2WO6 and SnS2, and preparation method thereof
A technology of heterogeneous structures and composite materials, applied in chemical instruments and methods, water/sludge/sewage treatment, chemical/physical processes, etc., can solve problems such as cumbersome processes, increased risk of strong alkali NaOH, and increased costs. Achieve high photocatalytic performance and good cycle chemical stability
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Embodiment 1
[0035] In the first step, weigh 0.97g Bi(NO 3 ) 3 ·5H 2 O and 0.33 g NaWO 4 2H 2 O, the molar ratio is 2:1, it is ultrasonically dissolved in 30ml acetic acid and 50ml deionized water respectively;
[0036] In the second step, under the condition that the bismuth nitrate acetic acid solution is vigorously stirred by magnetic force, add the sodium tungstate aqueous solution obtained in the above step 1 into the bismuth nitrate acetic acid solution dropwise, continue stirring for 30 minutes after the addition is complete, and then place it on the polytetrafluoroethylene lining Autoclave reaction, the reaction temperature is 180°C, and the reaction time is 20h;
[0037] The third step, weigh 2.1g SnCl 4 ·5H 2 O and 3.0g thiourea, the two were mixed and dissolved in 70ml deionized water, placed in a polytetrafluoroethylene-lined autoclave for reaction after ultrasonication for 30min, the reaction temperature was 180°C, and the reaction time was 10h;
[0038] The fourth step...
Embodiment 2
[0041] In the first step, weigh 0.97g Bi(NO 3 ) 3 ·5H 2 O and 0.33 g NaWO 4 2H 2 O, the molar ratio is 2:1, it is ultrasonically dissolved in 30ml acetic acid and 50ml deionized water respectively;
[0042] In the second step, under the condition that the bismuth nitrate acetic acid solution is vigorously stirred by magnetic force, add the sodium tungstate aqueous solution obtained in the above step 1 into the bismuth nitrate acetic acid solution dropwise, continue stirring for 30 minutes after the addition is complete, and then place it on the polytetrafluoroethylene lining Autoclave reaction, the reaction temperature is 180°C, and the reaction time is 20h;
[0043] The third step, weigh 2.1g SnCl 4 ·5H 2 O and 3.0g thiourea, the two were mixed and dissolved in 70ml deionized water, placed in a polytetrafluoroethylene-lined autoclave for reaction after ultrasonication for 30min, the reaction temperature was 180°C, and the reaction time was 10h;
[0044] The fourth step...
Embodiment 3
[0047] In the first step, weigh 0.97g Bi(NO 3 ) 3 ·5H 2 O and 0.33 g NaWO 4 2H 2 O, the molar ratio is 2:1, it is ultrasonically dissolved in 30ml acetic acid and 50ml deionized water respectively;
[0048] In the second step, under the condition that the bismuth nitrate acetic acid solution is vigorously stirred by magnetic force, add the sodium tungstate aqueous solution obtained in the above step 1 into the bismuth nitrate acetic acid solution dropwise, continue stirring for 30 minutes after the addition is complete, and then place it on the polytetrafluoroethylene lining Autoclave reaction, the reaction temperature is 180°C, and the reaction time is 20h;
[0049] The third step, weigh 2.1g SnCl 4 ·5H 2 O and 3.0g thiourea, the two were mixed and dissolved in 70ml deionized water, placed in a polytetrafluoroethylene-lined autoclave for reaction after ultrasonication for 30min, the reaction temperature was 180°C, and the reaction time was 10h;
[0050] The fourth step...
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