Preparation method and applications of In2S3/BiPO4 heterojunction photocatalyst
A photocatalyst and heterojunction technology, applied in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve problems such as excessive band gap, low quantum efficiency, and reduced photocatalytic activity
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Embodiment 1
[0029] (1) In 2 S 3 preparation of
[0030] 1 mmol InCl 3 and 2 mmol of TAA were dissolved in 40 mL of deionized water and stirred until clear, and the pH was adjusted to 12 with NaOH. The resulting mixed liquid was transferred to a 70 mL stainless steel autoclave, sealed and kept at 120° C. for 12 hours, and then cooled to room temperature. The obtained product was collected by centrifugation, washed several times with absolute ethanol and deionized water, and then dried at 60°C for 12 hours.
[0031] (2) BiPO 4 preparation of
[0032] 1mmol of Bi(NO 3 ) 3 ·5H 2 O was dissolved in 2.5 mL of ethylene glycol and stirred for 30 min to prepare a clear solution. 1.5mmol of NH 4 h 2 PO 4 Dissolve in 30mL of deionized water and slowly add to the above solution. The resulting white suspension was further stirred at room temperature for 30 minutes to achieve homogeneity. The suspension was centrifuged and washed several times with deionized water and absolute ethanol to ...
Embodiment 2
[0039] (1) In 2 S 3 preparation of
[0040] 1 mmol InCl 3 and 2 mmol of TAA were dissolved in 40 mL of deionized water and stirred until clear, and the pH was adjusted to 13 with NaOH. The resulting mixed liquid was transferred to a 70 ml stainless steel autoclave, sealed and kept at 120° C. for 12 hours, and then cooled to room temperature. The obtained product was collected by centrifugation, washed several times with absolute ethanol and deionized water, and then dried at 60°C for 12 hours.
[0041] (2) BiPO 4 preparation of
[0042] 1mmol of Bi(NO 3 ) 3 ·5H 2 O was dissolved in 2.5 mL of ethylene glycol and stirred for 30 min to prepare a clear solution. 1.5mmol of NH 4 h 2 PO 4 Dissolve in 30mL of deionized water and slowly add to the above solution. The resulting white suspension was further stirred at room temperature for 30 minutes to achieve homogeneity. The suspension was centrifuged and washed several times with deionized water and absolute ethanol to ...
Embodiment 3
[0049] (1) In 2 S 3 preparation of
[0050] c. 1 mmol of InCl 3 and 2 mmol of TAA were dissolved in 40 ml of deionized water and stirred until clear, and the pH was adjusted to 14 with NaOH. The resulting mixed liquid was transferred to a 70 ml stainless steel autoclave, sealed and kept at 120° C. for 12 hours, and then cooled to room temperature. The obtained product was collected by centrifugation, washed several times with absolute ethanol and deionized water, and then dried at 60°C for 12 hours.
[0051] (2) BiPO 4 preparation of
[0052] c. Add 1mmol of Bi(NO 3 ) 3 ·5H 2 O was dissolved in 2.5 mL of ethylene glycol and stirred for 30 min to prepare a clear solution. 1.5mmol of NH 4 h 2 PO 4 Dissolve in 30ml of deionized water and slowly add to the above solution. The resulting white suspension was further stirred at room temperature for 30 minutes to achieve homogeneity. The suspension was centrifuged and washed several times with deionized water and absolut...
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