CelluMOFs: Green, Facile, and Flexible Metal‐Organic Frameworks for Versatile Applications

Abstract

Natural cellulose fiber-based materials have been widely used in daily life for a broad application owing to their intrinsic merits such as easy availability, eco-friendly, good processability, and outstanding physical-mechanical properties. Surface modification of natural fibers with nanostructures is an effective strategy to integrate the textile substrates with many favorable functionalities. Here, a green, facile, and universal method is introduced for the in situ growth of γ-cyclodextrin (γ-CD) metal-organic frameworks (MOFs) in cellulose fiber-based materials (CelluMOFs). Compared to the pristine fibers, the resulting CelluMOFs have high porosity with up to 50 times larger specific surface area and enhanced loading capacity to functional molecules (essential oils, antibacterial agents, and active drugs) with 23-36 times higher loading content. The CelluMOFs also exhibit high adsorption capability to volatile organic compounds and carbon dioxide. Moreover, the CelluMOFs textiles loaded with a model drug (doxorubicin) show a steady release profile and deep skin permeation capability. These CelluMOFs combine the advantages of both cellulose fibers and CD-MOFs, which greatly extend their applications in the fragrance industry, antimicrobial, pollutant removal, and biomedical textiles.

Air-permeable and flexible multifunctional cellulose-based textiles for bio-protection, thermal heating conversion, and electromagnetic interference shielding

“…To address the aforementioned issue, graphene, carbon nanotubes (CNTs), boron nitride, metallic nanoparticles, conducting polymer, and other active nanostructured materials have been proposed to decorate polymeric or biobased textiles via various methods, including dip coating, 22 vapor coating 23 spray coating, 24,25 electroless plating, 26 stencil printing, 27 vacuum ltration, 28 and in situ growth. 29,30 Despite signicant and encouraging progress in textile-based wearable electronic devices, there are few reports on the implementation of biocidal functions in wearable textiles, which are critical for personal bio-protection, particularly during pandemics. Because conventional textiles lack bactericidal characteristics, many pathogens can proliferate and even survive for seven days on them, 31 contributing to a microorganism imbalance on the human body and therefore causing disease infection.…”

A comprehensive review on the synthesis techniques of porous materials for gas separation and catalysis

“…Another approach was proposed by Zhang et al to prepare cellulose fibres‐based MOFs by in situ growth of 𝛾 ‐cyclodextrin crystals on cellulosic fibres. [ 59 ] Natural cellulosic materials–cotton fibres and silk fibres were used in this case. They acted as a coordination unit as well as a template for the in situ growth of 𝛾 ‐cyclodextrin MOF crystals on fibres that were used for CO 2 separation.…”

“…MOF, metalorganic frameworks. (Reproduced with permission from Zhang et al [59] ) structure. A similar approach was also used to synthesize mesostructured cerium-based nanocomposites for CO 2 reduction by photocatalysis.…”

Cellulose‐Based Electrolytes for Advanced Lithium‐Ion Batteries: Recent Advances and Future Perspectives

“…To solve the above issue, cellulose‐MOF composite fibers with uniformly wrapped MOF particles were obtained by growing MOF particles in situ on cellulose fibers by Zheng et al (Figure 5a) [11a] . Similarly, based on the in situ growth of MOF on cellulose fibers, a MOF−Li‐cellulose composite gel electrolyte membrane was also reported by Zeng et al.…”