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The fabrication of p-n heterojunctions is a smart choice to improve photocatalytic performance because such junctions not only effectively promote the separation of photogenerated charges but also improve photocatalytic performance. Herein, a nanoflower-like p-n heterojunction photocatalyst BiOCl/K-C3N4 (abbreviated as BK-x) was prepared by a simple solution coprecipitation method. Under visible light, the BiOCl/K-C3N4p-n heterojunction has enhanced photocatalytic performance in the degradation of methyl orange and gaseous formaldehyde (HCHO). The degradation rate of the optimized complex BK-0.2 is 99% for MO in 30 min and 56% for HCHO in 35 min. The p-type BiOCl can effectively enhance the absorption of visible light, and its p-n heterojunction with K-C3N4 can significantly enhance the separation efficiency and transfer rate of photogenerated electron–hole pairs. Meanwhile, the multi-dimensional nanoflower structure is not only conducive to light reflection and improves light utilization, but also exposes more catalytically active sites. This p-n heterojunction photocatalyst thus represents a promising material for use in solving environmental pollution problems. [ABSTRACT FROM AUTHOR]

A fully conjugated figure‐of‐eight nanohoop is presented with facile synthesis. The molecule's lemniscular skeleton features the combination of two strained oligoparaphenylene loops and a flexible cyclooctatetrathiophene core. Its rigid yet guest‐adaptive cavities enable the formation of the peanut‐like 1:2 host–guest complexes with C60 or C70, which have been confirmed by X‐ray crystallography and characterized in solution. Further computational studies suggest notable geometric variations and non‐covalent interactions of the cavities upon binding with different fullerenes, as well as overall conjugation comparable to cycloparaphenylenes. [ABSTRACT FROM AUTHOR]

Mapping single-neuron projections is essential for understanding brain-wide connectivity and diverse functions of the hippocampus (HIP). Here, we reconstructed 10,100 single-neuron projectomes of mouse HIP and classified 43 projectome subtypes with distinct projection patterns. The number of projection targets and axon-tip distribution depended on the soma location along HIP longitudinal and transverse axes. Many projectome subtypes were enriched in specific HIP subdomains defined by spatial transcriptomic profiles. Furthermore, we delineated comprehensive wiring diagrams for HIP neurons projecting exclusively within the HIP formation (HPF) and for those projecting to both intra- and extra-HPF targets. Bihemispheric projecting neurons generally projected to one pair of homologous targets with ipsilateral preference. These organization principles of single-neuron projectomes provide a structural basis for understanding the function of HIP neurons.