Chen Guangxue, Yan Linjuan, Wan Xiaofang, Zhang Qiankun, Wang Qing
State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
Materials (Basel). 2019 Sep 23;12(19):3101. doi: 10.3390/ma12193101.
The development of ecofriendly procedures to avoid the use of toxic chemicals for the synthesis of stable silver nanoparticles (AgNPs) is highly desired. In the present study, we reported an eco-friendly and green technique for in situ fabrication of AgNPs on bleached hardwood pulp fibers (bhpFibers) using D-glucuronic acid as the only reducing agent. Different amounts of D-glucuronic acid were introduced and its effect on the size and distribution of AgNPs on the bhpFibers was discussed. The morphology and structures of bhpFibers@AgNPs were proved by electron microscope-dispersive spectroscopy (SEM-EDS), X-ray diffraction (XRD), Fourier transform infrared (FT-IR) and X-ray photoelectron spectroscopy (XPS). Then, a series of bhpFibers@AgNPs with different AgNPs loadings were also prepared by adjusting the concentration of the AgNO solution. After a papermaking process via vacuum filtration, the prepared papers displayed an outstanding antibacterial performance against (gram -negative) and (gram-positive). It is foreseeable that the bhpFibers@AgNPs have a promising application in the field of biomedical.
迫切需要开发环保工艺，以避免在合成稳定的银纳米颗粒（AgNPs）时使用有毒化学物质。在本研究中，我们报道了一种环保且绿色的技术，以D-葡萄糖醛酸作为唯一还原剂，在漂白阔叶木浆纤维（bhpFibers）上原位制备AgNPs。引入了不同量的D-葡萄糖醛酸，并讨论了其对bhpFibers上AgNPs尺寸和分布的影响。通过电子显微镜-能谱仪（SEM-EDS）、X射线衍射（XRD）、傅里叶变换红外光谱（FT-IR）和X射线光电子能谱（XPS）对bhpFibers@AgNPs的形态和结构进行了表征。然后，通过调整AgNO溶液的浓度，还制备了一系列具有不同AgNPs负载量的bhpFibers@AgNPs。经过真空过滤造纸工艺后，制备的纸张对（革兰氏阴性）和（革兰氏阳性）表现出优异的抗菌性能。可以预见，bhpFibers@AgNPs在生物医学领域具有广阔的应用前景。
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