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The present study examines the synthesis of black phosphorus nanosheets (BPNs) through the liquid-phase exfoliation of bulk black phosphorus, subsequently leading to the  in situ  growth of zeolitic imidazolate frameworks (ZIF-8) on PVP-stabilized BPNs. The synthesized nanocomposites were analyzed using various analytical techniques, confirming that ZIF-8 is effectively attached to the surface of BPNs, resulting in improved dispersion, a large surface area and an appropriate pore size distribution. Incorporating ZIF-8 into BPNs significantly improves the photocatalytic performance in the degradation of methylene blue (MB) and rhodamine 6G (R6G) dyes. The degradation efficiency is 88 % for both MB and R6G within 90 min of UV light irradiation, attributed to the enhanced capture of electrons and the reduction of photogenerated electron-hole pair recombination potential. Additionally, the electrochemical capacitance of the uniquely designed electrode materials is analyzed using electrochemical techniques. BPNs/ZIF-8 electrode exhibits a 40 % increase in capacity witha specific capacitance of 145 Fg −1  compared to BPNs, which show a specific capacitance of 98 Fg −1  at apotential scan rate of 10 mVs   -1 . Moreover, the BPNs/ZIF-8 electrode material has excellent cyclic stability with acapacitive retention of 85 % after 9,500 cycles. The results indicate that this material holds considerable promise for applications in photocatalysis and supercapacitors, opening avenues for progress in these fields.

zeitschrift für physikalische chemie

Synergistic effect of  in situ  growth of highly porous ZIF-8 on black phosphorus nanosheets for enhanced photocatalytic and electrochemical performance