PDA/Bi-AgIn5S8/TiO2 hetero-junction photoelectrode, preparation method and application
A photoelectrode and heterojunction technology, applied in electrodes, electrolysis components, electrolysis processes, etc., can solve the problems of limiting the photoelectric conversion efficiency of TiO2, and achieve the effects of good photoelectrochemical performance, good chemical stability and good repeatability
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Embodiment 1
[0032] The preparation method of this heterojunction photoelectrode is to carry out according to the following steps:
[0033] A. TiO was prepared on FTO substrate 2 nanorod arrays.
[0034] The described preparation of TiO on the FTO substrate 2 The steps of nanorod array are:
[0035] (1) 15 mL of hydrochloric acid solution was dissolved in 15 mL of deionized water, and then 0.35 mL of butyl titanate was slowly added to the solution and stirred until the solution became clear to obtain a mixed solution A.
[0036] (2) Transfer the mixed solution A to a tetrafluoroethylene-lined reaction kettle, put the cleaned FTO substrate in it, with the conductive side facing down, raise the temperature to 180°C for 6 hours, and cool naturally to obtain surface deposition monolayer TiO 2 FTO substrate of nanorod arrays.
[0037] (3) Add 2 mL of acetic acid to 100 mL of ethanol, and then add 1.5 mL of butyl titanate and stir to form a uniform mixed solution B.
[0038] (4) Take out t...
Embodiment 2
[0045] The preparation method of this heterojunction photoelectrode is to carry out according to the following steps:
[0046] A. TiO was prepared on FTO substrate 2 nanorod arrays.
[0047] The described preparation of TiO on the FTO substrate 2 The steps of nanorod array are:
[0048] (1) 15 mL of hydrochloric acid solution was dissolved in 15 mL of deionized water, and then 0.35 mL of butyl titanate was slowly added to the solution and stirred until the solution became clear to obtain a mixed solution A.
[0049] (2) Transfer the mixed solution A to a tetrafluoroethylene-lined reaction kettle, put the cleaned FTO substrate in it, with the conductive side facing down, raise the temperature to 180°C for 6 hours, and cool naturally to obtain surface deposition monolayer TiO 2 FTO substrate of nanorod arrays.
[0050] (3) Add 2 mL of acetic acid to 100 mL of ethanol, and then add 1.5 mL of butyl titanate and stir to form a uniform mixed solution B.
[0051] (4) Take out t...
Embodiment 3
[0058] The preparation method of this heterojunction photoelectrode is to carry out according to the following steps:
[0059] A. TiO was prepared on FTO substrate 2 nanorod arrays.
[0060] The described preparation of TiO on the FTO substrate 2 The steps of nanorod array are:
[0061] (1) 15 mL of hydrochloric acid solution was dissolved in 15 mL of deionized water, and then 0.35 mL of butyl titanate was slowly added to the solution and stirred until the solution became clear to obtain a mixed solution A.
[0062] (2) Transfer the mixed solution A to a tetrafluoroethylene-lined reaction kettle, put the cleaned FTO substrate in it, with the conductive side facing down, raise the temperature to 180°C for 6 hours, and cool naturally to obtain surface deposition monolayer TiO 2 FTO substrate of nanorod arrays.
[0063] (3) Add 2 mL of acetic acid to 100 mL of ethanol, and then add 1.5 mL of butyl titanate and stir to form a uniform mixed solution B.
[0064] (4) Take out t...
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