Huang Luqiang, Wu Changji, Xie Lijuan, Yuan Xue, Wei Xinyu, Huang Qun, Chen Youqiang, Lu Yudong
College of Life Sciences, The Public Service Platform for Industrialization Development Technology of Marine Biological Medicine and Product of State Oceanic Administration, Southern Institute of Oceanography, Fujian Normal University, Fuzhou 350117, China.
College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou 350007, China.
Nanomaterials (Basel). 2019 Mar 4;9(3):355. doi: 10.3390/nano9030355.
Nanocellulose is an abundant green resource that, owing to the larger surface area, length, and diameter of the fibers, can be used as a framework for loading Ag nanoparticles and serve as substrate for surface enhancement Raman scattering (SERS). These properties would cause the hydroxyl groups on the surface to adsorb the Ag ions and reduce them to Ag seed to form a load fulcrum. This paper presents a convenient and environmentally friendly method for the fabrication of silver-nanocellulose composites (NCF-Ag). A commonly used pesticide, carbendazim (CBZ), was used as a SERS probe to evaluate the properties of NCF-Ag. The results showed that NCF-Ag possesses good homogeneity, reproducibility, and stability. Additionally, CBZ was found to have a low limit of detection (LOD), i.e., 1.0 × 10 M, which indicates the possibility for trace analysis. Furthermore, it presents good linearity with ² = 0.98 at 1007 and 1270 cm in the range from 10~10 M CBZ.
纳米纤维素是一种丰富的绿色资源，由于其纤维具有较大的表面积、长度和直径，可作为负载银纳米颗粒的框架，并用作表面增强拉曼散射（SERS）的基底。这些特性会使表面的羟基吸附银离子并将其还原为银种子，从而形成负载支点。本文提出了一种简便且环保的制备银-纳米纤维素复合材料（NCF-Ag）的方法。使用一种常用农药多菌灵（CBZ）作为SERS探针来评估NCF-Ag的性能。结果表明，NCF-Ag具有良好的均匀性、重现性和稳定性。此外，发现CBZ的检测限较低，即1.0×10⁻⁸ M，这表明具有痕量分析的可能性。此外，在10⁻⁸~10⁻⁵ M的CBZ浓度范围内，在1007和1270 cm⁻¹处其线性良好，R² = 0.98。
