Graphene oxide/AgInS2 nano hybrid material and preparation method thereof
A nano-hybrid material and graphene technology, applied in the field of graphene oxide/AgInS2 nano-hybrid material and its preparation, can solve the problems of heavy metal ions restricting the development of semiconductor nanocrystals, and achieve uniform morphology, wide source of raw materials, and manufacturing low cost effect
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Embodiment 1
[0033] 1. In (DEDC) 3 preparation of
[0034] ① Dissolve 3.38g of sodium diethyldithiocarbamate trihydrate in 150mL of water and disperse evenly to obtain a 0.1mol / L DEDC solution;
[0035] ② 1.47g InCl 3 4H 2 O was added to 50mL water, dispersed evenly, and a 0.1mol / L DEDC solution was obtained;
[0036] ③Add the DEDC solution prepared in step ② dropwise to the solution obtained in step ② under magnetic stirring, let it stand for 6 hours until the precipitation is complete, wash the obtained white precipitate with deionized water 3 times, and dry it in vacuum Get the indium precursor In(DEDC) 3 spare.
[0037] 2. Preparation of Ag(DEDC)
[0038] ①Dissolve 1.13g of sodium diethyldithiocarbamate trihydrate in 100mL of water and disperse evenly to obtain a 0.1mol / L DEDC solution;
[0039] ②Add 0.85g AgNO 3Add it into 50mL water, disperse evenly, and get 0.1mol / L DEDC solution;
[0040] ③ Add the DEDC solution prepared in step ② dropwise to the solution obtained in step ...
Embodiment 2
[0046] 1. Silver precursor Ag(DEDC) and indium precursor In(DEDC) 3 The preparation method is with embodiment 1.
[0047] 2. Graphene oxide / AgInS 2 Preparation of nanohybrid materials
[0048] ① Weigh 30mg of graphene oxide and disperse it in 10mL of oleic acid, ultrasonically treat for 1 hour to make it evenly dispersed, then add 5mL of octadecene and ultrasonically treat for 15 minutes, finally add 5mL of oleylamine and mix well.
[0049] ②Weigh 25.6mg silver precursor Ag(DEDC) and 65.3mg indium precursor In(DEDC) 3 Disperse into 20mL oleic acid, stir well to dissolve;
[0050] ③ Slowly add the mixed solution obtained in step ① to the precursor mixed solution prepared in step ②, dropwise for 8-10 minutes, and stir at the same time. The reaction was carried out for 5 hours. Naturally cooled to room temperature, and 5 mL of absolute ethanol was added to precipitate a precipitate. After the precipitate was centrifuged and washed with n-hexane, it was dried for 5 hours at ...
Embodiment 3
[0052] 1. Silver precursor Ag(DEDC) and indium precursor In(DEDC) 3 The preparation method is with embodiment 1.
[0053] 2. Graphene oxide / AgInS 2 Preparation of nanohybrid materials
[0054] ① Weigh 30mg of graphene oxide and disperse it in 10mL of oleic acid, ultrasonically treat for 1 hour to make it evenly dispersed, then add 5mL of octadecene and ultrasonically treat for 15 minutes, finally add 5mL of oleylamine and mix well.
[0055] ②Weigh 29.3mg silver precursor Ag(DEDC) and 55.9mg indium precursor In(DEDC) 3 Disperse into 20mL oleic acid, stir well to dissolve;
[0056] ③ Slowly add the mixed solution obtained in step ① to the precursor mixed solution prepared in step ②, dropwise for 8-10 minutes, and stir at the same time. The reaction was carried out for 5 hours. Naturally cooled to room temperature, and 5 mL of absolute ethanol was added to precipitate a precipitate. After washing the alcoholate by centrifugation with n-hexane, it was dried for 5 hours under...
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