NiCoP nanoparticles grown on surface of g-C3N4 in situ as well as preparation method and application of NiCoP nanoparticles
An in-situ growth and nanoparticle technology, applied in chemical instruments and methods, hydrogen production, chemical/physical processes, etc., can solve problems such as insufficient tight binding force and insufficient activity, to prevent agglomeration, and the preparation method is simple and convenient , to overcome the effect of complex operations
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Embodiment 1
[0024] 1. Preparation of g-C 3 N 4 : Weigh 10 g of melamine, calcinate at 550° C. for 2 hours, and the heating rate is 5° C. / min; after the reaction is naturally cooled to room temperature, grind the product to a uniform powder. In order to obtain more uniform powder particles, weigh 500 mg of the above sample, add 40 mL of double distilled water, ultrasonicate for 2 hours and then stir for 12 hours, then centrifuge, and the centrifuged product is dried and then ground to obtain g-C 3 N 4 .
[0025] 2. Preparation of NiCoP20:
[0026] (1) Weigh 300mg of the above g-C 3 N 4 , add 20mL double distilled water, sonicate for 2h and then stir for 12h;
[0027] (2) Add 20 mg of nickel source (NiCl 2 ·6H 2 O) and 20mg cobalt source (Co(NO 3 ) 2 ·6H 2 0), ultrasonic 10min and then stirred for 10min, after obtaining a clear solution, add 100mg phosphorus source (NaH 2 PO 2 ·3H 2 O), ultrasonic 2h then stirred 2h;
[0028](3) drying the solution obtained in step (2) at 60°...
Embodiment 2
[0035] 1. Preparation of g-C 3 N 4 : Weigh 10 g of melamine, calcinate at 550° C. for 2 hours, and the heating rate is 5° C. / min; after the reaction is naturally cooled to room temperature, grind the product to a uniform powder. In order to obtain more uniform powder particles, weigh 500 mg of the above sample, add 40 mL of double distilled water, ultrasonicate for 2 hours and then stir for 12 hours, then centrifuge, and the centrifuged product is dried and then ground to obtain g-C 3 N 4 .
[0036] 2. Preparation of NiCoP50:
[0037] (1) Weigh 300mg of the above g-C 3 N 4 , add 20mL double distilled water, sonicate for 2h and then stir for 12h;
[0038] (2) Add 50 mg of nickel source (NiCl 2 ·6H 2 O) and 50mg cobalt source (Co(NO 3 ) 2 ·6H 2 0), ultrasonic 10min and then stirred for 10min, after obtaining a clear solution, add 250mg phosphorus source (NaH 2 PO 2 ·3H 2 O), ultrasonic 2h then stirred 2h;
[0039] (3) drying the solution obtained in step (2) at 60...
Embodiment 3
[0046] 1. Preparation of g-C 3 N 4 : Weigh 10 g of melamine, calcinate at 550° C. for 2 hours, and the heating rate is 5° C. / min; after the reaction is naturally cooled to room temperature, grind the product to a uniform powder. In order to obtain more uniform powder particles, weigh 500 mg of the above sample, add 40 mL of double distilled water, ultrasonicate for 2 hours and then stir for 12 hours, then centrifuge, and the centrifuged product is dried and then ground to obtain g-C 3 N 4 .
[0047] 2. Preparation of NiCoP100:
[0048] (1) Weigh 300mg of the above g-C 3 N 4 , add 20mL double distilled water, sonicate for 2h and then stir for 12h;
[0049] (2) Add 100mg nickel source (NiCl 2 ·6H 2 O) and 100mg cobalt source (Co(NO 3 ) 2 ·6H 2 0), ultrasonic 10min and then stirred for 10min, after obtaining a clear solution, add 500mg phosphorus source (NaH 2 PO 2 ·3H 2 O), ultrasonic 2h then stirred 2h;
[0050] (3) drying the solution obtained in step (2) at 60°...
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