In this work, we report a facial one‐step solvothermal synthesis of BP nanosheets from red phosphorus based on common laboratory conditions at low temperature. This bottom‐up approach for the direct preparation of BP nanosheets can be up to 2.1 g for one batch and the efficiency of the phase transition is up to 100 %. The as‐prepared BP nanosheets show highly efficient photocatalytic performance. Its efficiency of photocatalytic hydrogen evolution from water is 40.6 times higher than that of red phosphorus precursor and is close to the well‐known C3N4 nanosheets. Therefore, we firmly believe that this facile, scalable, and low‐cost approach opens a new route to prepare black phosphorus nanosheets and will take a step to the rapid development and applications of this unique 2D material.

The generation of H2O2 on BiOCl(001) originates from O2 reduction, while there are two pathways on BiOCl(010).

In this work, we report a novel phosphorus element heterostructure with snowflake-like morphology consisting of 1D rod black phosphorus (BP) and 2D flake red phosphorus (RP). The content of black...

The development of high-efficiency economic photocatalyst for the production of hydrogen peroxide (H2O2) is of great significance for solar-to-fuel conversion. Bismuth oxychloride (BiOCl) shows giant potential for photocatalytic H2O2 production,...

In this work, a novel BP@AuÀ Ag nanohybrid is fabricated by a facile ultrasonic method. A glassy carbon electrode (GCE) modified with these nanohybrids is found to be a viable enzyme-free sensor for H 2 O 2 detection. The deposition of Au nanoparticles on black phosphorus (BP) nanosheets enhances the stability of the electrode. Subsequent decoration of silver nanoparticles further dramatically improves the electrochemical performance owing to the synergetic effect. The as-prepared BP@AuÀ Ag/GCE displays excellent peak current response for H 2 O 2 reduction with a wide linear range (0.005-2.36 mM), low detection limit (1.09 μM), good stability, and negligible interference. The present work provides a new avenue for exploring novel BP-based enzyme-free biosensors.