Photocatalytic hydrogen(H2)evolution is a promising approach for future sustainable energy utilization.However,it is still a great challenge to develop efficient and stable metal‐free photocatalysts with broadband so...Photocatalytic hydrogen(H2)evolution is a promising approach for future sustainable energy utilization.However,it is still a great challenge to develop efficient and stable metal‐free photocatalysts with broadband solar absorption in the visible region for H2 production.Metal‐free graphene quantum dot(GQD)is an emerging candidate for this purpose because of its good water‐solubility and tunable band gap.On the other hand,metal phosphides(Ni2P,Co2P,etc)have been demonstrated as novel noble‐metal‐free cocatalysts for water splitting,which can efficiently separate electron‐hole pairs and enhance the photocatalytic activities.Herein,we report for the first time on the use of OH‐functionalized GQDs(OH‐GQDs)photosensitizer coupled with Ni2P nanoparticles for photocatalytic H2 production withλ>420 nm light.The H2 production rate is^94 times higher than that of bare OH‐GQDs,which is even comparable to that of OH‐GQDs with 1.0 wt%Pt cocatalyst.This enhancement is probably due to the semiconductor‐cocatalyst interface interaction between Ni2P and OH‐GQDs to facilitate efficient charge transfer process.展开更多
In a recent study by Yin et al.[1]that was published in Nature revealed that host-derived Z-RNAs act as critical endogenous ligands for Z-form nucleic acid-binding protein 1(ZBP1)during viral infections.This study des...In a recent study by Yin et al.[1]that was published in Nature revealed that host-derived Z-RNAs act as critical endogenous ligands for Z-form nucleic acid-binding protein 1(ZBP1)during viral infections.This study describes a mechanism through which viruses exploit host disruption of transcription termination(DoTT)to promote the accumulation of Z-RNAs and trigger ZBP1-mediated immune responses,thereby establishing a conceptual foundation for the development of innovative antiviral and immunomodulatory therapies targeting the DoTT-ZBP1 pathway(Fig.1a).展开更多
文摘Photocatalytic hydrogen(H2)evolution is a promising approach for future sustainable energy utilization.However,it is still a great challenge to develop efficient and stable metal‐free photocatalysts with broadband solar absorption in the visible region for H2 production.Metal‐free graphene quantum dot(GQD)is an emerging candidate for this purpose because of its good water‐solubility and tunable band gap.On the other hand,metal phosphides(Ni2P,Co2P,etc)have been demonstrated as novel noble‐metal‐free cocatalysts for water splitting,which can efficiently separate electron‐hole pairs and enhance the photocatalytic activities.Herein,we report for the first time on the use of OH‐functionalized GQDs(OH‐GQDs)photosensitizer coupled with Ni2P nanoparticles for photocatalytic H2 production withλ>420 nm light.The H2 production rate is^94 times higher than that of bare OH‐GQDs,which is even comparable to that of OH‐GQDs with 1.0 wt%Pt cocatalyst.This enhancement is probably due to the semiconductor‐cocatalyst interface interaction between Ni2P and OH‐GQDs to facilitate efficient charge transfer process.
基金supported by the Innovation Program of the Chinese Academy of Agricultural Sciences(CAAS-CSLPDCP-202403)the Agricultural Science and Technology Innovation Program(ASTIP-IAS-15)the National Natural Science Foundation of China(82372224,82341052,and 82241078).
文摘In a recent study by Yin et al.[1]that was published in Nature revealed that host-derived Z-RNAs act as critical endogenous ligands for Z-form nucleic acid-binding protein 1(ZBP1)during viral infections.This study describes a mechanism through which viruses exploit host disruption of transcription termination(DoTT)to promote the accumulation of Z-RNAs and trigger ZBP1-mediated immune responses,thereby establishing a conceptual foundation for the development of innovative antiviral and immunomodulatory therapies targeting the DoTT-ZBP1 pathway(Fig.1a).
