Xin-yu SU , Sheng-en QIU , Hang YANG , Feng YU , Gao-rong HAN , Zong-ping CHEN
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Ultrathin hydrogen-substituted graphdiyne nanosheets containing pdclusters used for the degradation of environmental pollutants
Graphdiyne (GDY) and its derivatives have been considered ideal supporting materials for nanoscale active particles because of their unique atomic and electronic structure. An efficient bi-metal Cu-Pd catalyst was added to produce the uniform deposition of Pd nano-clusters with an average size of ~0.95 nm on hydrogen-substituted GDY (H-GDY) nanosheets. With the assistance of NaBH4, the resulting Pd/H-GDY was very effective in the degradation of 4-nitrophenol (4-NP), whose conversion was sharply increased to 97.21% in 100 s with a rate constant per unit mass (k‘) of 8.97×105 min–1 g–1. Additionally, dyes such as methyl orange (MO) and Congo red (CR) were completely degraded within 180 and 90 s, respectively. The Pd/H-GDY maintained this activity after 5 reduction cycles. These results highlight the promising performance of Pd/H-GDY in catalyzing the degradation of various pollutants, which is attributed to the combined effect of the large π-conjugated structure of the H-GDY nanosheets and the evenly distributed Pd nanoclusters.
期刊介绍：
New Carbon Materials is a scholarly journal that publishes original research papers focusing on the physics, chemistry, and technology of organic substances that serve as precursors for creating carbonaceous solids with aromatic or tetrahedral bonding. The scope of materials covered by the journal extends from diamond and graphite to a variety of forms including chars, semicokes, mesophase substances, carbons, carbon fibers, carbynes, fullerenes, and carbon nanotubes. The journal's objective is to showcase the latest research findings and advancements in the areas of formation, structure, properties, behaviors, and technological applications of carbon materials. Additionally, the journal includes papers on the secondary production of new carbon and composite materials, such as carbon-carbon composites, derived from the aforementioned carbons. Research papers on organic substances will be considered for publication only if they have a direct relevance to the resulting carbon materials.
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