A green and in-situ strategy is reported for the biosynthesis of Ag/ZrO₂ nanocomposite using Ageratum conyzoides L. extract as both reducing and stabilizer agents. Immobilizing Ag NPs on the ZrO₂ surface was verified using various instrumental analyses such as field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and energy dispersive X-ray spectroscopy (EDS). The catalytic activity of the as-prepared Ag/ZrO₂ nanocomposite was investigated in the reduction of different pollutants such as 2,4-dinitrophenylhydrazine (2,4-DNPH), 4-nitrophenol (4-NP), nigrosin (NS) and congo red (CR) in the presence of NaBH₄. Furthermore, the catalyst can be recovered and used in multiple runs without significant loss of catalytic activity. The advantages of using nano-biotechnology to synthesize heterogeneous catalysts present a noteworthy area for further research.

报道了一种绿色和原位的策略，该方法使用香叶ger香提取物作为还原剂和稳定剂来生物合成Ag / ZrO ₂纳米复合材料。使用各种仪器分析，例如场发射扫描电子显微镜（FESEM），透射电子显微镜（TEM），X射线衍射（XRD）和能量色散X射线光谱（EDS），对将Ag NPs固定在ZrO ₂表面进行了验证。研究了所制备的Ag / ZrO ₂纳米复合材料在还原不同污染物（如2,4-二硝基苯肼（2,4-DNPH），4-硝基苯酚（4-NP），尼古丁（NS）和二甲基亚砜）中的催化活性。NaBH ₄存在下的刚果红（CR）。此外，可以回收催化剂并将其多次使用而不会显着降低催化活性。使用纳米生物技术合成多相催化剂的优势为进一步研究提供了一个值得注意的领域。