A kind of preparation method of double ferroelectric bismuth ferrite/bismuth vanadate photoelectrochemical thin film
A photoelectrochemical, bismuth ferrite technology, applied in electrolytic inorganic material coating, coating, energy input and other directions, can solve the problem of low photocurrent density of photoanode, achieve low size and shape requirements, excellent photocatalytic performance, chemical Precise dosing ratio
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Embodiment example 1
[0021] 1) Clean the conductive glass FTO (2cm*2cm), then use detergent, water, deionized water, and acetone to ultrasonically clean for 10 minutes, and then use a volume ratio of 1:1:1 (deionized water, acetone, isopropanol). The mixed solution was ultrasonically cleaned for 60 minutes;
[0022] 2) Dissolve 0.04M bismuth nitrate pentahydrate and 0.4M potassium iodide in 50ml deionized water, and add 0.01M metal nitrate ion Co 2+ , then add nitric acid to adjust the pH to 2, and uniformly stir to obtain solution A;
[0023] 3) 0.23M p-benzoquinone was dissolved in 20ml ethanol, stirred for 10 minutes to obtain solution B;
[0024] 4) Mix solution A and solution B as the electrodeposition solution, and use the three-electrode method for electrodeposition, with FTO as the working electrode, Ag / AgCl as the reference electrode, and platinum wire as the counter electrode. Deposition for 5 min at a constant potential of -0.1V vs (Ag / AgCl), and cleaning with deionized water to obtai...
Embodiment example 2
[0027] 1) Clean the conductive glass FTO (2cm*2cm), use detergent, water, deionized water, and acetone to ultrasonically clean for 20 minutes in turn, and then use a volume ratio of 1:1:1 (deionized water, acetone, isopropanol). The mixed solution was ultrasonically cleaned for 40 minutes;
[0028] 2) Dissolve 0.2M bismuth nitrate pentahydrate and 0.4M potassium iodide in 50ml deionized water, and add 0.005M metal lead chloride ion Pd 2+ , then add nitric acid to adjust the pH to 2, and uniformly stir to obtain solution A;
[0029] 3) 0.5M p-benzoquinone was dissolved in 20ml ethanol, stirred for 30 minutes to obtain solution B;
[0030] 4) Mix solution A and solution B as the electrodeposition solution, and use the three-electrode method for electrodeposition, with FTO as the working electrode, Ag / AgCl as the reference electrode, and platinum wire as the counter electrode. Deposition for 5 min at a constant potential of -0.4V vs (Ag / AgCl), and cleaning with deionized water ...
Embodiment example 3
[0033] 1) Clean the conductive glass FTO (2cm*2cm), then use detergent, water, deionized water, and acetone to ultrasonically clean for 10 minutes, and then use a volume ratio of 1:1:1 (deionized water, acetone, isopropanol). The mixed solution was ultrasonically cleaned for 60 minutes;
[0034] 2) Dissolve 0.1M bismuth nitrate pentahydrate and 0.2M potassium iodide in 50ml deionized water, and add 0.005M Ag + , 0.001M Pt 4+ , then add nitric acid to adjust the pH to 3, and evenly stir to obtain solution A;
[0035] 3) 0.1M p-benzoquinone was dissolved in 20ml of ethanol, and stirred for 10 minutes to obtain solution B;
[0036] 4) Mix solution A and solution B as the electrodeposition solution, and use the three-electrode method for electrodeposition, with FTO as the working electrode, Ag / AgCl as the reference electrode, and platinum wire as the counter electrode. Deposition at a constant potential of 0.2V vs (Ag / AgCl) for 5 min, and cleaning with deionized water to obtain...
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