Nowadays, considerable attention has been gained for metal-based nanocatalysts due to their high catalytic activity. Herein, copper-cotton cellulose (Cu-CC) and metal nanoparticles supported on Cu-CC (MNPs@Cu-CC) were prepared. Zero-valent nanoparticles (NPs) of silver (Ag), and iron (Fe) were grown on Cu-CC and utilized as catalyst in few important organic reduction reactions. The prepared Cu-CC, Fe@Cu-CC and Ag@Cu-CC catalysts were utilized in catalytic reduction of nitrophenols and dyes for their evaluation. Among all the tested catalysts, Cu-CC efficiently reduced 4-nitrophenol (4-NP) and methyl orange dye (MO). The reduction rate constants of 4-NP and MO were 9.94 × 10⁻³ and 1.12 × 10⁻² s^–1, respectively. Further the catalytic activity of the more efficient Cu-CC was optimized by varying its amount, nitophenols and dyes, and NaBH₄ concentrations. The stability, re-usability and loss in catalytic activity of the NPs were analyzed by the recyclability, in which the Cu-CC was utilized several times for the reduction of 4-NP and MO which suggest that the designed catalyst can be easily prepared, recovered simply by discarding the dye after completion of reaction, recyclable and have good catalytic activity.

如今，由于金属基纳米催化剂的高催化活性，引起了相当大的关注。在此，制备了铜棉纤维素（Cu-CC）和负载在Cu-CC上的金属纳米颗粒（MNPs @ Cu-CC）。银（Ag）和铁（Fe）的零价纳米颗粒（NPs）在Cu-CC上生长，并在少数重要的有机还原反应中用作催化剂。所制备的Cu-CC，Fe @ Cu-CC和Ag @ Cu-CC催化剂用于催化还原硝基酚和染料以进行评估。在所有测试的催化剂中，Cu-CC有效还原了4-硝基苯酚（4-NP）和甲基橙染料（MO）。4-NP和MO的还原速率常数分别为9.94×10 ^-3和1.12×10 ^-2  s ^–1， 分别。此外，更高效的Cu-CC的催化活性通过改变其含量，硝基酚和染料以及NaBH _4的浓度进行了优化。通过可回收性分析了NPs的稳定性，可重复使用性和催化活性的损失，其中多次使用Cu-CC还原了4-NP和MO，这表明所设计的催化剂易于制备，反应完成后，只需丢弃染料即可回收，可回收利用，并具有良好的催化活性。