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In this study, MCM-56 and bifer nanosheets exfoliated from their precursor layered zeolites were employed, and solution-based deposition methods were examined to prepare compact nanoscale-thick monolayer films of neatly tiled nanosheets under mild conditions. AFM revealed that spin coating, the pick-up method, and the Langmuir-Blodgett technique yielded high-quality monolayer films with predominantly monolayer coverage of >80% and low surface roughness (<1 nm), in contrast to the previously reported electrostatic adsorption method, which produced rough and uneven films. By repeating the deposition of monolayer films using the pick-up method, multilayer zeolite films were also successfully constructed. Their well-ordered stacked structure was confirmed by the progressive enhancement of the FT-IR band corresponding to the zeolite upon repeated deposition of monolayer films, as well as by the sharp X-ray diffraction peaks derived from the multilayer structure. The multilayer films were further deposited on a copper substrate, and their corrosion resistance was examined. As a result, the corrosion current density decreased by nearly an order of magnitude, and the corrosion potential shifted toward more positive values. These results indicate that highly ordered zeolite films exhibit pronounced anticorrosion effects while being deposited to a thickness of only tens of nanometers under mild conditions.

Rights:

• Creative Commons BY Attribution 4.0 International
  

Keyword: Nanosheet, Zeolite

Date published: 2026-04-17

Publisher: American Chemical Society (ACS)

Journal:

• ACS Applied Nano Materials (ISSN: 25740970) vol. 9 issue. 15 p. 6618-6630

Funding:

• Core Research for Evolutional Science and Technology JPMJCR22B1

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.1021/acsanm.6c00178

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Updated at: 2026-04-20 08:42:21 +0900

Published on MDR: 2026-04-20 10:25:50 +0900