Grządka Elżbieta, Godek Ewelina, Matusiak Jakub, Maciołek Urszula, Wasilewska Małgorzata
Faculty of Chemistry, Institute of Chemical Sciences, Maria Curie-Skłodowska University, M. Skłodowskiej - Curie 3 Sq, 20-031, Lublin, Poland.
Department of Construction Materials Engineering and Geoengineering, Faculty of Civil Engineering and Architecture, Lublin University of Technology, Nadbystrzycka 40, 20-618, Lublin, Poland.
Chempluschem. 2025 Aug;90(8):e202500246. doi: 10.1002/cplu.202500246. Epub 2025 Jun 6.
The goal of this study is to answer the question of how pH influences the adsorption behavior of cellulose derivatives with different chemical natures (cationic cellulose-AHCE; nonionic hydroxyethyl cellulose, and anionic carboxymethyl cellulose) on the surface of the natural adsorbent bentonite-nanoclay N-HB. The diversity of polysaccharide adsorption is investigated, the mechanisms of this process are determined, and the adsorption layer structure as well as the stability of the systems are characterized. The studies are carried out by UV-vis spectrophotometry, Fourier transform infrared, X-ray diffraction, scanning electron microscopy-electron dispersive spectroscopy, X-ray photoelectron spectroscopy, zeta potential, and thermogravimetric analysis. Apart from the cognitive element, the results obtained have the potential to find practical applications in water purification and in the production of stable colloidal suspensions in cosmetics.
本研究的目的是回答pH值如何影响具有不同化学性质的纤维素衍生物（阳离子纤维素-AHCE；非离子羟乙基纤维素和阴离子羧甲基纤维素）在天然吸附剂膨润土-纳米粘土N-HB表面的吸附行为这一问题。研究了多糖吸附的多样性，确定了该过程的机制，并对吸附层结构以及体系的稳定性进行了表征。通过紫外可见分光光度法、傅里叶变换红外光谱、X射线衍射、扫描电子显微镜-电子能谱、X射线光电子能谱、zeta电位和热重分析进行了研究。除了认知方面的意义外，所获得的结果还有可能在水净化以及化妆品中稳定胶体悬浮液的生产中找到实际应用。
