Textile Functionalization Using LTA and FAU Zeolitic Materials

Abstract

COVID-19 has drawn worldwide attention to the need for personal protective equipment. Face masks can be transformed from passive filters into active protection. For this purpose, it is sufficient to apply materials with oligodynamic effect to the fabric of the masks, which makes it possible to destroy infectious agents that have fallen on the mask with aerosol droplets from the air stream. Zeolites themselves are not oligodynamic materials, but can serve as carriers for nanoparticles of metals and/or compounds of silver, zinc, copper, and other materials with biocidal properties. Such a method, when the particles are immobilized on the surface of the substrate, will increase the lifetime of the active oligodynamic material. In this work, we present the functionalization of textile materials with zeolites to obtain active personal protective equipment with an extended service life. This is done with the aim to extend the synthesis of zeolitic materials to polymeric fabrics beyond cotton. The samples were characterized using XRD, SEM, and UV-Vis spectroscopy. Data of physicochemical studies of the obtained hybrid materials (fabrics with crystals grown on fibers) will be presented, with a focus on the effect of fabrics in the growth process of zeolites.

Active and Intelligent Packaging: A Review of the Possible Application of Cyclodextrins in Food Storage and Safety Indicators

“…Furthermore, it has the most outstanding strength due to hydrogen bond interactions, which provide greater interaction strength with the host molecule, avoiding its early release upon application [28]. B-CD consists of 7 glucopyranose units in the shape of a truncated cone [29][30][31][32]. It has been widely used as an encapsulant or carrier of food additives because it improves the water solubility of the guest component, as well as its permeability, and provides stability to lipophilic compounds thanks to the hydroxyl groups that allow it to form hydrogen bonds (weak bonds), resulting in its nonpolar character [33][34][35][36][37].…”

Frequency Response Analysis of FAU, LTA and MFI Zeolites Using UV-Vis and Electrochemical Impedance Spectroscopy

“…Like the method described in [12], for the synthesis of zeolite X in accordance with the IZA recipe [5], the synthesis is carried out by mixing two preprepared solutions. To make the first solution, 50 g of deionized water (conductivity ≤4.3 µS/cm) and 50 g of sodium hydroxide (Sigma Aldrich, reagent grade ≥98%) were mixed and dissolved using a magnetic stirrer.…”

First‐Principles Study of Optical Properties of Linde‐Type A Zeolite

“…Among synthetic zeolites, the Linde-type A (LTA) zeolite stands out as one of the most representative. It exhibits exceptional selectivity in various processes, including pervaporation, [5] serving as an additive in laundry detergent, [6] facilitating the industrial dehydration of ethanol, [7][8][9][10] influencing bacterial adhesion, [11] and participating in the functionalization of textiles, [12] among other applications. Its versatility and effectiveness make it a valuable and widely used zeolite in numerous industrial and scientific fields.…”