MoS2/CuO heterojunction photocatalyst and preparation method and application thereof
A photocatalyst and heterojunction technology, applied in catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems of low photocatalytic activity, difficult visible light response of photocatalysts, etc., and achieve improved separation. Efficiency, improve photocatalytic activity, easy to fall off
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Embodiment 1
[0030] Example 1: MoS 2 Preparation of / CuO Heterojunction Photocatalyst
[0031] (1) MoS 2 Preparation of:
[0032] 1g sodium molybdate dihydrate (Na 2 MoS 2 2H 2 O) and 1.30g thiourea (CS(NH 2 ) 2 ) was dissolved in 60mL of deionized water and stirred until clear, the resulting mixed liquid was transferred to a 100mL stainless steel autoclave, sealed and reacted at 160°C for 24h, then cooled to room temperature; the obtained product was collected by centrifugation, washed with absolute ethanol and Washed three times with deionized water and dried to obtain MoS 2 Nanosheets.
[0033] (2) MoS 2 / CuO heterojunction photocatalyst preparation:
[0034] The MoS obtained in step (1) 2 The nanosheets were dissolved in 20 mL of deionized water and sonicated, followed by the MoS 2 The solution was added dropwise to Cu(NO 3 ) 2 ·3H 2 In O aqueous solution, Cu(NO 3 ) 2 ·3H 2 O and MoS 2 The mass ratio is 0.0456g:0.1g. After the mixed solution was stirred overnight, i...
Embodiment 2
[0035] Example 2: MoS 2 Preparation of / CuO Heterojunction Photocatalyst
[0036] (1) MoS 2 Preparation of:
[0037] 1.25g sodium molybdate dihydrate (Na 2 MoS 2 2H 2 O) and 1.50g thiourea (CS(NH 2 ) 2 ) was dissolved in 60mL of deionized water and stirred until clear, the resulting mixed liquid was transferred to a 100mL stainless steel autoclave, sealed and reacted at 200°C for 24h, then cooled to room temperature; the obtained product was collected by centrifugation, washed with absolute ethanol and Washed three times with deionized water and dried to obtain MoS 2 Nanosheets.
[0038] (2) MoS 2 / CuO heterojunction photocatalyst preparation:
[0039] The MoS obtained in step (1) 2 The nanosheets were dissolved in 20 mL of deionized water and sonicated, followed by the MoS 2 The solution was added dropwise to Cu(NO 3 ) 2 ·3H 2 In O aqueous solution, Cu(NO 3 ) 2 ·3H 2 O and MoS 2 The mass ratio is 0.0456g:0.1g. After the mixed solution was stirred overnight...
Embodiment 3
[0040] Example 3: MoS 2 Preparation of / CuO Heterojunction Photocatalyst
[0041] (1) MoS 2 Preparation of:
[0042] 1.50g sodium molybdate dihydrate (Na 2 MoS 2 2H 2 O) and 1.70g thiourea (CS(NH 2 ) 2 ) was dissolved in 60mL deionized water and stirred until clear, the resulting mixed liquid was transferred to a 100mL stainless steel autoclave, sealed and reacted at 240°C for 24h, then cooled to room temperature; Washed three times with deionized water and dried to obtain MoS 2 Nanosheets.
[0043] (2) MoS 2 / CuO heterojunction photocatalyst preparation:
[0044] The MoS obtained in step (1) 2 The nanosheets were dissolved in 20 mL of deionized water and sonicated, followed by the MoS 2 The solution was added dropwise to Cu(NO 3 ) 2 ·3H 2 In O aqueous solution, Cu(NO 3 ) 2 ·3H 2 O and MoS 2 The mass ratio is 0.0456g:0.1g. After the mixed solution was stirred overnight, it was washed with absolute ethanol and deionized water three times, dried, and the abov...
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