The kinetics of dyeing silk and wool fibers with silver nanoparticles was investigated by ultraviolet-visible (UV-Vis) absorption spectroscopy at different temperatures. Silver nanoprisms (AgNPrs) acting as novel dyestuffs endowed fibers with blue color because of their localized surface plasmon resonance. Color characteristics of dyed fibers were measured and analyzed. The dyeing rate of fibers with AgNPrs increased with an increase in temperature. Compared with wool, silk exhibited faster dyeing rate with AgNPrs. The pseudo-first-order model described suitably the initial stage of the dyeing process of silk and wool based on AgNPrs. Whereas, the entire dyeing process except for the beginning stage followed the pseudo-second-order model appropriately. Traditional dye (acid blue 199) was used for comparison with AgNPrs. The pseudo-second-order model fitted the entire dyeing process with acid blue 199 better. Activation energy for silk dyeing with AgNPrs was the lowest among the examined dyeing systems, demonstrating that AgNPrs combined most easily with silk fibers. Thermodynamic activation parameters for the adsorption of AgNPrs and acid blue 199 onto fibers were obtained to investigate the involved dyeing process of silk and wool.

通过在不同温度下的紫外-可见（UV-Vis）吸收光谱研究了用银纳米粒子对丝绸和羊毛纤维进行染色的动力学。银纳米棱镜（AgNPrs）用作新型染料使纤维具有蓝色，因为它们的局部表面等离子体共振。测量并分析了染色纤维的颜色特性。AgNPrs对纤维的染色速率随温度的升高而增加。与羊毛相比，丝绸对AgNPrs的染色速度更快。伪一级模型适当地描述了基于AgNPrs的丝绸和羊毛染色过程的初始阶段。而除了开始阶段以外的整个染色过程都适当地遵循了伪二级模型。使用传统染料（酸性蓝199）与AgNPrs进行比较。拟二阶模型更适合酸性蓝199的整个染色过程。用AgNPrs进行真丝染色的活化能在所研究的染色系统中是最低的，这表明AgNPrs最容易与丝纤维结合。获得了AgNPrs和酸性蓝199吸附到纤维上的热力学活化参数，以研究涉及的丝绸和羊毛的染色过程。