Pollution of water by leaking industrial dyes has become a major problem for aquatic organisms and human-being. Polluted water treatment methods need efficient alternatives to conventional dye removing techniques. In this study, the catalytic activity of cellulose based silver nanocomposite against the pollutant methylene blue dye was searched. Cellulose based silver nanocomposite was synthesized by using in situ green synthesis method with Laurus nobilis extract. UV–VIS, FTIR, SEM, TEM, EDS, XRD, BET analyses were used to characterization of synthesized nanocomposite. Electron microscopy results confirmed that 25 nm diameter silver nanoparticles were supporting the 25 nm width cellulose nanofibers. Elemental composition of confirmed by UV–VIS, FTIR, XRD and EDS results which including silver and cellulose specific peaks. BET results showed that nanocomposite have 11.1 nm pore size with 199,8508 m²/g specific surface area. Catalytic activity of nanocomposite was performed against methylene blue in the presence of NaBH₄. Catalytic activity was traced for up to 120 min and complete removal of methylene blue dye was estimated as 1 h. Moreover, the recycled nanocomposite was found reusable without activity loss for three times. These results offer an easy, eco-friendly and reusable dye removing material for wastewaters which were polluted by industrial dyes.

泄漏的工业染料对水的污染已成为水生生物和人类的主要问题。污水处理方法需要有效的替代传统染料去除技术的方法。在这项研究中，研究了纤维素基银纳米复合物对污染物亚甲基蓝染料的催化活性。以月桂叶为原料，采用原位绿色合成法合成了纤维素基银纳米复合材料。提炼。UV-VIS，FTIR，SEM，TEM，EDS，XRD，BET分析用于表征合成的纳米复合材料。电子显微镜结果证实，直径为25 nm的银纳米颗粒支撑着宽度为25 nm的纤维素纳米纤维。元素组成由UV-VIS，FTIR，XRD和EDS确定，其中包括银和纤维素的特定峰。BET结果表明，纳米复合材料的孔径为11.1 nm，比表面积为199,8508 m ² / g。在NaBH ₄存在下，纳米复合材料对亚甲基蓝具有催化活性。追踪催化活性长达120分钟，估计亚甲基蓝染料的完全去除时间为1小时。此外，发现回收的纳米复合材料可重复使用三次，而不会损失活性。这些结果为工业染料污染的废水提供了一种简单，环保且可重复使用的染料去除材料。