Preparation method of self-powered sensor
A sensor and self-powered technology, which is applied in the direction of instruments, scientific instruments, measuring devices, etc., can solve the problems of changing the photoelectrochemical properties of the photoelectrode interface and affecting the performance of photoelectrochemical sensors, and achieve excellent multi-functional applications, excellent photoelectric response, and improved The effect of response strength
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Embodiment 1
[0041] Embodiment 1 A method for preparing a self-powered sensor, characterized in that it comprises the following steps:
[0042] (1) WO 3 Preparation of hollow spheres
[0043] Take 0.5 g of sodium tungstate hydrate in 30 mL of ultrapure water, stir until dissolved, add 0.8 mL of L-lactic acid, stir for 15 min, add 1.35 mL of 6 mol / L HCl, stir for 40 min, and transfer the resulting solution to a high pressure reaction Reactor at 120 °C for 10 min. After the autoclave was gradually cooled to room temperature, the product was taken out, washed 3 times with ultrapure water, dried in vacuum overnight, and the resulting powder was calcined at 500 °C in a muffle furnace for 2 h, that is, the prepared WO 3 hollow ball;
[0044] (2)In 2 S 3 preparation of
[0045] Dissolve 0.2 g of indium nitrate hydrate in 80 mL of ultrapure water, add 0.10 g of thioacetamide to the above solution, stir for 30 min, transfer the resulting solution to an autoclave, and react at 120 °C for 10 h....
Embodiment 2
[0061] Embodiment 2 A method for preparing a self-powered sensor, characterized in that it comprises the following steps:
[0062] (1) WO 3 Preparation of hollow spheres
[0063] Take 0.6 g of sodium tungstate hydrate in 30 mL of ultrapure water, stir until dissolved, add 0.9 mL of L-lactic acid, stir for 18 min, add 1.35 mL of 6 mol / L HCL, stir for 40 min, then transfer the resulting solution to a high-pressure reaction kettle, reacted at 120 °C for 11 min, after the autoclave was gradually cooled to room temperature, the product was taken out, washed 3 times with ultrapure water, dried in vacuum overnight, and the resulting powder was calcined at 500 °C in a muffle furnace for 2 h, that is, the prepared WO 3 hollow ball;
[0064] (2)In 2 S 3 preparation of
[0065] Dissolve 0.3 g of indium nitrate hydrate in 80 mL of ultrapure water, add 0.11 g of thioacetamide to the above solution, stir for 30 min, transfer the resulting solution to an autoclave, react at 120 °C for ...
Embodiment 3
[0081] Embodiment 3 A method for preparing a self-powered sensor, characterized in that it comprises the following steps:
[0082] (1) WO 3 Preparation of hollow spheres
[0083] Take 0.7 g of sodium tungstate hydrate in 30 mL of ultrapure water, stir until dissolved, add 1.0 mL of L-lactic acid, stir for 20 minutes, add 1.35 mL of 6 mol / L HCL, stir for 40 minutes, and transfer the resulting solution to a high pressure reaction kettle, reacted at 120 °C for 12 min, after the autoclave was gradually cooled to room temperature, the product was taken out, washed 4 times with ultrapure water, dried in vacuum overnight, and the resulting powder was calcined at 500 °C in a muffle furnace for 3 h, that is, the prepared WO 3 hollow ball;
[0084] (2)In 2 S 3 preparation of
[0085] Dissolve 0.5 g of indium nitrate hydrate in 80 mL of ultrapure water, add 0.10–0.12 g of thioacetamide to the above solution, stir for 30 min, transfer the resulting solution to a high-pressure reacto...
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