Synthesis of Green Chitosan – Silver Nanoparticle Composite Material: Parameter Optimization and Physicochemical Characterization

VNU Journal of Science: Natural Sciences and Technology Pub Date : 2022-12-03 DOI:10.25073/2588-1140/vnunst.5363

T. Y, D. Thien, T. Cong, Tran Thi Nu, Lai Thi Bich Thuy, Nguyễn Thị Thúc, Le Quang Tuan, Nguyen Dang Dat, K. Hileuskaya, J. Kalatskaja, V. Kulikouskaya

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Abstract

In this study, response surface methodology (RSM) was carried out with four parameters: chitosan concentration, AgNO3 concentration, ascorbic acid concentration and time with the objective to obtain minimum mean particle size of silver nanoparticles (response Y). The chitosan-silver nanoparticle composite material (CTS-AgNPs nanocomposite) obtained experimentally from the optimal conditions was characterized by evaluating some of their physical-chemical properties using combined technique including visible ultraviolet spectroscopy (UV -Vis), dynamic light scattering (DLS), transmission electron microscopy (TEM), infrared spectra (IR) and X-ray diffraction. The optimal conditions were chitosan concentration of 19.2 %, silver nitrate of 26 mM, ascorbic concentration of 33 mM and time of 4.25 hours. Spherical Ag particles obtained experimentally were well dispersed in chitosan matrix with the average diameter of around 2÷8 nm with a narrow size distribution and homogeneous dispersion

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绿色壳聚糖-纳米银复合材料的合成:参数优化及理化表征

在本研究中，响应面法(RSM)采用四个参数:利用可见紫外光谱(UV -Vis)、动态光散射(DLS)、动态光散射(DLS)等综合技术对实验得到的壳聚糖-银纳米颗粒复合材料(CTS-AgNPs纳米复合材料)的理化性质进行了表征。透射电子显微镜(TEM)，红外光谱(IR)和x射线衍射。壳聚糖浓度为19.2%，硝酸银浓度为26 mM，抗坏血药浓度为33 mM，时间为4.25 h。实验得到的球形银颗粒在壳聚糖基体中分散良好，平均粒径在2÷8 nm左右，粒径分布窄，分散均匀

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VNU Journal of Science: Natural Sciences and Technology

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