Research Laboratory of Polymer Colloids and Nanomaterials, Department of Chemistry, Rajshahi University, Rajshahi 6205, Bangladesh; BCSIR Laboratories Rajshahi, Bangladesh Council of Scientific and Industrial Research, Rajshahi 6205, Bangladesh.
Research Laboratory of Polymer Colloids and Nanomaterials, Department of Chemistry, Rajshahi University, Rajshahi 6205, Bangladesh.
Carbohydr Polym. 2020 Apr 1;233:115842. doi: 10.1016/j.carbpol.2020.115842. Epub 2020 Jan 10.
This work discussed the preparation of Ag nanoparticles (AgNPs) and AgNPs impregnated sub-micrometer crystalline jute cellulose (SCJC) particles using a green synthetic bioreduction method. The ultimate nanocomposite particles were named as SCJC/Ag. The crystalline structure of AgNPs was maintained in SCJC/Ag nanocomposte particles. The catalytic efficiency of SCJC/Ag nanocomposite particles were evaluated for the degradation of congo red (CR) and methylene blue (MB) using NaBH as reducing agent. A complete degradation of 20 mL of each CR (0.1 mM) and MB (0.05 mM) dye solution was achieved within 14 min when 0.005 mg mL of SCJC/Ag nanocomposite particles was employed. SCJC/Ag nanocomposite particles also exhibited moderate antibacterial activities against Staphylococcus aureus, Escherichia coli, Shigella dysenteriae and Shigella boydii and the results were comparable with those of the reference AgNPs. SCJC/Ag nanocomposite particles were the most effective against Escherichia coli (E. coli) with minimum inhibitory concentration of 0.014 mg mL.
这项工作讨论了使用绿色生物还原法制备银纳米粒子(AgNPs)和浸渍银纳米粒子的亚微米结晶黄麻纤维素(SCJC)颗粒。最终的纳米复合材料颗粒命名为 SCJC/Ag。在 SCJC/Ag 纳米复合材料颗粒中保持了 AgNPs 的结晶结构。使用 NaBH 作为还原剂,评估了 SCJC/Ag 纳米复合材料颗粒对刚果红(CR)和亚甲基蓝(MB)的降解的催化效率。当使用 0.005mgmL 的 SCJC/Ag 纳米复合材料颗粒时,20mL 的每种 CR(0.1mM)和 MB(0.05mM)染料溶液在 14min 内完全降解。SCJC/Ag 纳米复合材料颗粒还对金黄色葡萄球菌、大肠杆菌、痢疾志贺氏菌和宋内志贺氏菌表现出适度的抗菌活性,结果与参考 AgNPs 相当。SCJC/Ag 纳米复合材料颗粒对大肠杆菌(E. coli)的抑制效果最显著,最小抑菌浓度为 0.014mgmL。