Products Cited in Publications Worldwide Novel hydrogen-bonded organic frameworks-based coating for fat oil and grease deposition control in the sewer system

Novel hydrogen-bonded organic frameworks-based coating for fat oil and grease deposition control in the sewer system

Yadav, Sachin; Mohana, Anika Amir; Pramanik, Sagor Kumar; Pramanik, Biplob Kumar

DOI:

Abstract

Hydrogen-bonded organic frameworks (HOFs) represent an emerging class of porous materials characterized by crystalline frame structures, self-assembled from organic molecules through hydrogen bonding. This study demonstrates that HOFs fragment into small particles while preserving their original structure when dispersed in a polymeric epoxy solution. The intermolecular hydrogen bond structural and electronic properties of the LH4-HOF complex as well as the mechanism of HOF incorporated epoxy were extensively studied using density functional theory. LH4-HOF has a high Langmuir surface area of 2758.3 m2/g and nonlocal density functional theory pore size distributions of 3 A◦. This unique solution processability enables the fabrication of coatings with high stability in aqueous systems. Results from a 30-day leaching test under controlled conditions (pH 7, temperature 20 ± 2 ℃) indicate that LH4-HOF incorporated epoxy-coated concrete samples exhibited an over 85 % reduction in calcium release compared to uncoated samples, with epoxy-coated samples alone showing a 60% reduction in calcium leaching. Additionally, the LH4-HOF-incorporated epoxy coating reduced the formation of fats, oils and grease deposits by more than 73% on the concrete samples. Thus, this novel coating approach offers a sustainable solution with significant potential applications in sewer management.

Keywords

Hydrogen-bonded organic frameworks ; Hybrid material ; Coating ; FOG management ; Sewer system

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