A4 Paper Chemistry: Synthesis of a Versatile and Chemically Modifiable Cellulose Membrane

Multifunctional cellulose membranes were developed from A4-sized printing paper via chemical modification. A4 paper is a widely used and easily accessible product with high cellulose content. Inspired by cellulose chemistry, we report a simple modification of the A4 paper, converting it from a commo...

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Bibliographic Details
Published inACS nano Vol. 14; no. 5; pp. 6173 - 6180
Main Authors Ahn, Eungjin, Kim, Taehyung, Jeon, Yuju, Kim, Byeong-Su
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 26.05.2020
Subjects
chemical grafting
cellulose chemistry
water/oil separation
origami membrane
A4 printing paper
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Summary:Multifunctional cellulose membranes were developed from A4-sized printing paper via chemical modification. A4 paper is a widely used and easily accessible product with high cellulose content. Inspired by cellulose chemistry, we report a simple modification of the A4 paper, converting it from a common office supply to a user-modifiable functionalized cellulose membrane for practical applications. The hydroxyl groups of cellulose enable a facile tuning of its internal structure and polarity via chemical modification. In addition, the functionalized cellulose membrane has more stable mechanical strength compared to commercial cellulose-based filtration membranes. As a proof-of-concept, we demonstrate the separation of a water/oil mixture using the functionalized A4 membrane; we have extended this idea to origami-assisted membrane applications. Finally, this versatile A4 paper chemistry may offer a promising strategy for the development of functional membranes.
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ISSN:1936-0851
1936-086X
DOI:10.1021/acsnano.0c02211