In this paper, the precipitation method was used to synthesize CuO nanoparticles (NPs). Sodium dodecyl sulfate (SDS) and Cetyltrimethylammonium Bromide (CTAB) were used as a surfactant to modify the surface morphology of the CuO NPs. To investigate the characteristics of the CuO NPs, X-ray diffraction technique (XRD), X-Ray photoelectron spectrometry (XPS), Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR) and Energy dispersive X-ray analysis (EDAX) were used. The catalytic activities of as prepared CuO NPs were evaluated by monitoring reduction of MB dye in the presence of NaBH₄ as reducing agent. Effect of catalyst mass, concentration of NaBH₄ and concentration of MB dye were investigated. The best results for the reduction of MB dye were obtained by the CuO–SDS catalyst. The results showed that 10 min of reaction time was sufficient to have the total degradation of MB dye. The reuse of the CuO–SDS catalyst for five cycles has shown interesting results via the reduction of MB dye without losing its effectiveness.

本文采用沉淀法合成了CuO纳米颗粒（NPs）。十二烷基硫酸钠（SDS）和十六烷基三甲基溴化铵（CTAB）被用作表面活性剂，以改变CuO NP的表面形态。为了研究CuO NPs的特性，X射线衍射技术（XRD），X射线光电子能谱（XPS），扫描电子显微镜（SEM），傅里叶变换红外光谱（FT-IR）和能量色散X射线分析（EDAX）。通过在存在NaBH ₄作为还原剂的情况下监测MB染料的还原，来评估所制备的CuO NP的催化活性。催化剂质量，NaBH ₄浓度的影响研究了MB染料的浓度。CuO–SDS催化剂获得了还原MB染料的最佳结果。结果表明，10分钟的反应时间足以使MB染料完全降解。通过减少MB染料而又不丧失其有效性，CuO–SDS催化剂可重复使用五个周期，显示出有趣的结果。