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3D-ordered macroporous g-C3N4 decorated with Co2P nanoparticles: An efficient composite for photocatalytic hydrolysis of ammonia borane to generate hydrogen
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DOI：10.1142/S1793604726510069.png)
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Abstract
En 中文
Photocatalytic hydrolysis of ammonia borane is widely regarded as a highly efficient method for hydrogen generation, largely depending on the design of the photocatalyst composed of semiconductor and metal nanoparticles. In this study, three-dimensional ordered macroporous graphitic carbon nitride (3DOM-CN) was fabricated using SiO2 microspheres as a hard template to increase its specific surface area, broaden its light absorption range, and suppress the recombination of photogenerated charge carriers. The 3DOM-CN was further decorated with cobalt phosphide nanoparticles (Co2P NPs) via phosphorization method. The resulting Co2P/3DOM-CN composite exhibited an exceptionally high hydrogen generation rate of 12.85 L & sdot;min (- 1) & sdot; g( CoP)( - 1) under light irradiation, which is nearly 2.6 times higher than that obtained in darkness. To elucidate the photocatalytic mechanism, controlled experiments were performed using different scavengers. Furthermore, the photocatalyst demonstrated favorable stability over eight consecutive recycles.
Keywords:
Hydrogen generation
ammonia borane
photocatalytic hydrolysis
3D ordered macroporous g-C3N4
Co2P NPs
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