AgSbS2 sensitized TiO2 composite membrane material and preparation and application thereof
A composite membrane, adsorption reaction technology, applied in the analysis of materials, material electrochemical variables, material analysis by electromagnetic means, etc., can solve problems such as low utilization of visible light, widen the light absorption range, improve the separation rate, and broaden the wavelength. The effect of the absorption area
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Embodiment 1
[0045] The preparation of photoanode comprises the following steps:
[0046] Pretreatment of titanium substrate: cutting the titanium substrate with a purity of 99.9% into a size of 1×4×0.1cm 3 Ti flakes were used as the growth substrate for the composite film. Clean the titanium sheet with deionized water and ethanol, and dry it for later use. Weigh 7.2g NH 4 F, dissolved in 40 mL of deionized water. Measure concentrated nitric acid and 30% H in a fume hood 2 o 2 96mL each, and NH 4 F solution was mixed in a 500mL beaker, and ultrasonically mixed for 5min to make a polishing solution. Select a flat and non-scratched titanium piece and put it in a small amount of polishing solution, wait for 20-30s, take out the titanium piece and wash it with deionized water. After polishing, put the polished titanium sheet into a beaker filled with deionized water, and ultrasonically use deionized water and ethanol for 5 minutes in turn, alternating three times, and finally soak the t...
Embodiment 2
[0055] The preparation of photoanode comprises the following steps:
[0056] Pretreatment of titanium substrate: cutting the titanium substrate with a purity of 99.9% into a size of 1×4×0.1cm 3 Ti flakes were used as the growth substrate for the composite film. Clean the titanium sheet with deionized water and ethanol, and dry it for later use. Weigh 7.2g NH 4 F, dissolved in 40 mL of deionized water. Measure concentrated nitric acid and 30% H in a fume hood 2 o 2 96mL each, and NH 4 F solution was mixed in a 500mL beaker, and ultrasonically mixed for 5min to make a polishing solution. Select a flat and non-scratched titanium piece and put it in a small amount of polishing solution, wait for 20-30s, take out the titanium piece and wash it with deionized water. After polishing, put the polished titanium sheet into a beaker filled with deionized water, and ultrasonically use deionized water and ethanol for 5 minutes in turn, alternating three times, and finally soak the t...
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