Tamuly Chandan, Hazarika Moushumi, Bordoloi Manobjyoti, Bhattacharyya Pradip Kr, Kar Rahul
Natural Product Chemistry Section, CSIR-North East Institute of Science and Technology, Branch Itanagar, Arunachal Pradesh 791110, India.
Natural Product Chemistry Section, CSIR-North East Institute of Science and Technology, Branch Itanagar, Arunachal Pradesh 791110, India.
Spectrochim Acta A Mol Biomol Spectrosc. 2014 Nov 11;132:687-91. doi: 10.1016/j.saa.2014.05.024. Epub 2014 May 21.
The synthesis of silver (Ag) nanoparticles using by pedicellamide (A), isolated from Piper pedicellatum C.DC leaf is demonstrated here. TEM analysis revealed that the Ag nanoparticles predominantly form spherical in shape. The compound 'A' act as a reducing, stabilizing and capping agent. The reaction mechanism was established by using density functional theory (DFT). Photocatalytic property of the Ag nanoparticles is investigated by degradation of Methyl Red (MR) dye under UV light. The kinetic, reaction mechanism and rate constant of photocatalytic degradation of MR was evaluated. The results show that Ag nanoparticles have suitable photocatalytic activity for the degradation of MR dye.
本文展示了利用从胡椒科植物柄叶青胡椒（Piper pedicellatum C.DC）叶片中分离出的柄酰胺（A）合成银（Ag）纳米颗粒的过程。透射电子显微镜（TEM）分析表明，银纳米颗粒主要呈球形。化合物“A”起到还原、稳定和封端剂的作用。通过密度泛函理论（DFT）确定了反应机理。通过在紫外光下甲基红（MR）染料的降解来研究银纳米颗粒的光催化性能。评估了MR光催化降解的动力学、反应机理和速率常数。结果表明，银纳米颗粒对MR染料的降解具有合适的光催化活性。
