Cu-anchored carbon nanotubes (Cu@CNTs) were cleverly fabricated through the simultaneously thermal treatment of sulfonated polymer nanotubes and copper salt precursor. The effect of calcination temperature (600 °C, 800 °C, 1000 °C) on the catalytic activity of Cu@CNTs for the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) with the addition of NaBH₄ has been studied in detail. The catalytic activity of the Cu@CNTs nanocomposite calcined at 800 °C was found to be better than those of the samples at 600 °C and 1000 °C, which can convert 4-NP to 4-AP in 6 min. The excellent catalytic performance of the nanocomposites was derived from the favorable catalytic properties of Cu nanoparticles, the uniform dispersion of Cu nanoparticles on CNTs and the advisable one-dimensional structure. Hence, this article provides a simple method to prepare an attractive catalyst for the reduction of 4-NP.

通过磺化聚合物纳米管和铜盐前体的同时热处理，巧妙地制备了铜锚定的碳纳米管（Cu @ CNTs）。煅烧温度（600°C，800°C，1000°C）对Cu @ CNTs将4-硝基苯酚（4-NP）还原为4-氨基苯酚（4-AP）的催化活性的影响NaBH _4的已经详细研究过。发现在800°C下煅烧的Cu @ CNTs纳米复合材料的催化活性要好于600°C和1000°C下的样品，在6分钟内可以将4-NP转化为4-AP。纳米复合材料的优异催化性能源自铜纳米颗粒的良好催化性能，铜纳米颗粒在CNT上的均匀分散以及可取的一维结构。因此，本文提供了一种简单的方法来制备用于还原4-NP的有吸引力的催化剂。