Multilayered thin films combining two oppositely charged nanoparticles (NPs), i.e., cellulose nanocrystals (CNCs) and Ge-imogolites, have been successfully obtained by the layer-by-layer method. CNC/Ge-imogolite (NP/NP) film growth patterns were studied by comparing growth mode of all of the nanoparticles thin films to that of films composed of CNC or Ge-imogolites combined with polyelectrolytes (PEs), i.e., cationic poly(allylamine hydrochloride) and anionic poly-4-styrene sulfonate (NP/PE films). NP/NP and NP/PE films growth patterns were found to be different. To get a deeper understanding of the growth mode of NP/NP, impact of different parameters, such as imogolites aspect ratio, adsorption time, ionic strength, and repeated immersion/drying, was evaluated and influence of the drying step is emphasized. The aspect ratio of imogolites was identified as an important feature for the film’s architecture. The short Ge-imogolites form denser films because the surface packing was more efficient.

中文翻译：

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纤维素纳米晶体/ Ge-Imogolite纳米管多层薄膜的制备

通过层-层法已经成功地获得了结合了两个相反电荷的纳米颗粒（NPs），即纤维素纳米晶体（CNCs）和锗-卵沸石的多层薄膜。通过比较所有纳米粒子薄膜的生长模式与由CNC或Ge分子筛与聚电解质（PEs）组合而成的膜的生长模式，即阳离子聚烯丙基胺，研究了CNC / Ge-伊莫高岩（NP / NP）膜的生长模式。盐酸盐）和阴离子聚-4-苯乙烯磺酸盐（NP / PE膜）。发现NP / NP和NP / PE膜的生长方式不同。为了更深入地了解NP / NP的生长方式，评估了不同参数的影响，例如卵长石的长径比，吸附时间，离子强度和反复的浸入/干燥，并强调了干燥步骤的影响。卵白石的长宽比被确定为影片结构的重要特征。短的Ge-单晶沸石形成更致密的薄膜，因为表面填充更有效。