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首页> 外文期刊>RSC Advances >Ag nanoparticles supported on N-doped graphene hybrids for catalytic reduction of 4-nitrophenol
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Ag nanoparticles supported on N-doped graphene hybrids for catalytic reduction of 4-nitrophenol

机译：N掺杂石墨烯杂化体上负载的Ag纳米颗粒催化还原4-硝基苯酚

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摘要

Ag nanoparticles (NPs) supported on N-doped reduced graphene oxide (Ag/N-RGO) hybrids were prepared by a combined solvothermal approach and microwave-polyol method. Compared to Ag NPs grown on undoped reduced graphene oxide (Ag/RGO), Ag/N-RGO exhibited better NPs dispersion, smaller particle size, and stronger NP-graphene interactions. The catalytic ability of Ag/N-RGO was evaluated for the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) with NaBH4, revealing that Ag/N-RGO showed a higher catalytic ability than Ag NPs or N-RGO alone, and Ag/RGO, which was due possibly to the synergetic effects between Ag NPs and N-RGO. Furthermore, the durability of Ag/NRGO was much better than that of Ag/RGO. These results indicate that Ag/N-RGO has a great potential for application in catalytic reduction of 4-NP.
机译：通过溶剂热法和微波多元醇法相结合的方法制备了负载在N掺杂的还原氧化石墨烯（Ag / N-RGO）杂化物上的Ag纳米颗粒（NPs）。与在未掺杂的还原氧化石墨烯（Ag / RGO）上生长的Ag NPs相比，Ag / N-RGO表现出更好的NPs分散性，更小的粒径和更强的NP-石墨烯相互作用。用NaBH4评估了Ag / N-RGO对4-硝基苯酚（4-NP）还原为4-氨基苯酚（4-AP）的催化能力，表明Ag / N-RGO的催化能力比Ag NPs高或单独使用N-RGO和Ag / RGO，这可能是由于Ag NP与N-RGO之间的协同作用所致。而且，Ag / NRGO的耐久性比Ag / RGO的耐久性好得多。这些结果表明，Ag / N-RGO在催化还原4-NP方面具有巨大的潜力。

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