In this work, nickel sulfide (NiS)/bismuth oxybromide (BiOBr) hybrids were synthesized by a two-step hydrothermal method. Some advanced tools were employed to characterize the crystal phase, morphological evolution, light absorption and photocatalytic performance. Significantly, NiS/BiOBr hybrids exhibited enhanced photocatalytic activity toward rhodamine B (RhB) degradation under visible light irradiation. Comparatively, NS/BOB-3.0 showed the highest degradation rate, over 2.5 times higher than that of pure BiOBr. Furthermore, the retarded recombination rate of photogenerated carriers contributed to the improved photocatalytic performance. The results indicate that hybrids may be a promising method for enhancing the photocatalytic ability of BiOX-based semiconductor.

中文翻译：

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NiS/BiOBr 杂化物具有延迟的载流子复合和增强的可见光驱动光催化活性

在这项工作中，通过两步水热法合成了硫化镍 (NiS)/溴氧化铋 (BiOBr) 杂化物。一些先进的工具被用来表征晶相、形态演变、光吸收和光催化性能。值得注意的是，NiS/BiOBr 杂化物在可见光照射下对罗丹明 B (RhB) 的降解表现出增强的光催化活性。相比之下，NS/BOB-3.0 的降解率最高，是纯 BiOBr 的 2.5 倍以上。此外，光生载流子的延迟复合率有助于提高光催化性能。结果表明，杂化可能是提高 BiOX 基半导体光催化能力的一种有前途的方法。